2010年2月27日星期六

Hefei "Sunshine" shines into the "low carbon" World Expo

Hefei "Sunshine" shines into the "low carbon" World Expo




As we all know, solar energy inexhaustible, solar power was quiet and clean, safe, non-pollution, non-threatening environment, and therefore known as the solar power is a human ideal new energy. However, solar radiation into electrical energy generated by solar panel can not be used directly. How can turning it into a steady current, and thus for human use? Through independent research and development, Hefei Sunlight Power Supply Co., Ltd. has developed a support for solar photovoltaic power generation SunAccess series of inverters, this power inverter can photovoltaic solar panels into electricity generated by the instability to comply with requirements of grid access available energy. "The PV inverter will be the Shanghai World Expo will be applied to all 11 venues of photovoltaic power generation system." The person in charge of corporate planning department, including the Shanghai World Expo will be the main building - the China Pavilion and theme of the museum 3 MW PV and the grid system is built in China now the single largest building-integrated photovoltaic project. System design life of 25 years, more than 3000 tons of carbon dioxide emissions a year, Shanghai's power to alleviate tensions and promote energy-saving emission reduction, achieving sustainable development, will play an important leading and exemplary role.



Talking about the Shanghai World Expo bid process, Cao Renxian expressions are very proud of. "Our domestic product, can be prior to relying on its own technology and a series of outstanding performance to beat out all foreign corporate giants of the photovoltaic power, photovoltaic power generation system won the Expo all relevant projects, it is our pride!"



It is understood that the business has always adhered to and focus on scientific research and innovation, with more than 100 professional R & D personnel, and with educational institutions such as Hefei University of Technology to maintain long-term cooperation, stick to the "independent innovation" route, the product several times to fill the gaps have been successfully applied in the Qinghai-Tibet Railway, the 20 MW PV power plant in Dunhuang and many other major national construction projects; product has passed many international certification, and are exported to countries around the world. And let the enterprise be proud of there in the 2008 Beijing Olympic Games, the whole "Bird's Nest" of photovoltaic power generation system also uses their products. Earlier this year, the firm also topped the Forbes 2010 "China's potential Enterprises List" hundred, the only one among the hundred enterprises in Anhui.



According to reports, the Expo has already won the bid to the enterprises more than 3,000 million yuan of direct economic benefits. "Invisible brand greater efficiency." Cao Renxian, currently undertaken by the Shanghai World Expo at the end of the task has entered the 11 venues have been the China Pavilion, Theme Pavilion and the Japanese Pavilion three venues, the formal grid photovoltaic power generation system power generation, another eight venues have been completed seven supply, installation and commissioning is in progress; only the rest of the zero-carbon Museum will soon ship, plans to complete all the finishing work by the end of March. As the outstanding performance of the enterprise was also excellent as the Expo construction unit.



"Right now, publicity is our idea of a low-carbon life of an important mission." Cao Renxian introduction, they have learned from the Expo will buy a hundred tickets will be invited to visit the trade; Expo will be held, their professional and technical personnel will also be on-site promotion of the principles and explain the advantages of solar power, universal access to clean and efficient, energy saving and environment-friendly concept of low-carbon life. "At this stage, due to the cost of solar power than traditional energy sources, the price is relatively high, so solar power is also used mostly for the current state and demonstration projects related to power generation projects, has not yet fully into the life of social production and power generation applications . "" But we believe that more applications as new materials, transformation efficiency, as well as all aspects of technological advances made since the cost of solar power will soon be reduced to a flat cost of traditional energy levels, become a social production and living the mainstream of energy. 10 years, every household will use the new energy power generation. "Cao Renxian confidently told reporters.



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Qun Ling Industrial successfully win the bidding of 1000K inverter anti-islanding detection device project

Qun Ling Industrial successfully win the bidding of 1000K inverter anti-islanding detection device project




Warmly congratulated the successful tenderer National Grid Group Ling Industrial Research and Test Center Laboratory for Solar Power sets of anti-islanding detection device project, which includes: 2 sets of 1000K, and anti-islanding detection of grid-connected inverter device, a Taiwan anti-islanding detection device 200K , 1 30K anti-islanding detection device;



Ling from the group's marketing department sales data aware, anti-islanding detection device is also used in: China Product Certification Center (CQC) Laboratory, Chinese Academy of Sciences electrician, EPRI, numerous measures have prompted many colleges and universities Electric Experiment room, total sales in China more than 100 units.



Qun Ling, is the only professional production of anti-island protection experiment detecting device can be customized according to various test standards: 1, IEC62116-2008 standard; 2, Beijing Jianheng CNCA-CTS004: 2009 new standards; 3, the German TUV Certification with the latest standard DIN VDE 0126-1-1; 4, the U.S. regulatory IEEE1547/IEEE1547.1 standards; 5, Australia and regulations AS4777 standards; can be produced according to the above criteria, and grid-connected inverter island test for detection devices, for the user traffic tailor-made to meet the different needs of field testing.



The following standard products to meet the Beijing Jianheng CGC/GF001-2009 and IEC62116-2008 test for detection requirements:



ACLT-3803M resistive, inductive, capacitive load power are the 33K, to meet the following 30KW islanding detection of grid-connected inverter:



Resistive load :0-32 .97 KW adjustable, step amplitude 0.01KW; current can be separately shown in the control panel;



Inductive load :0-32 .97 KVA continuously adjustable, step amplitude 0.01KVA; current can be separately shown in the control panel;



Capacitive load :0-32 .97 kvar continuously adjustable, step amplitude 0.01kvar; current can be separately shown in the Control Panel.



ACLT-3830M resistive, inductive, capacitive load power are 110K, and below to meet the 100kWp islanding detection of grid-connected inverter:



Resistive load :0-109 .97 KW adjustable, step amplitude 0.01KW; current can be separately shown in the control panel;



Inductive load :0-109 .97 KVA continuously adjustable, step amplitude 0.01KVA; current can be separately shown in the control panel;



Capacitive load :0-109 .97 kvar continuously adjustable, step amplitude 0.01Kvar; current can be separately shown in the Control Panel.



ACLT-3860M resistive, inductive, capacitive load power are 210K, and below to meet the 200kWp islanding detection of grid-connected inverter:



Resistive load :0-209 .97 KW adjustable, step amplitude 0.01KW; current can be separately shown in the control panel;



Inductive load :0-209 .97 KVA continuously adjustable, step amplitude 0.01KVA; current can be separately shown in the control panel;



Capacitive load :0-209 .97 kvar continuously adjustable, step amplitude 0.01Kvar; current can be separately shown in the Control Panel.



ACLT-38160M resistive, inductive, capacitive load power, respectively 529K, satisfy the following 500KW grid-connected inverter islanding detection:



Resistive load :0-529 .7 KW adjustable, step amplitude 0.1KW; current can be separately shown in the control panel;



Inductive load :0-529 .7 KVA continuously adjustable, step amplitude 0.1KVA; current can be separately shown in the control panel;



Capacitive load :0-529 .7 kvar continuously adjustable, step amplitude 0.1Kvar; current can be separately shown in the Control Panel.



ACLT-38300M resistive, inductive, capacitive load power are 1080K, and the following to meet the 1000kWp islanding detection of grid-connected inverter:



Resistive load :0-1079 .7 KW adjustable, step amplitude 0.1KW; three-phase resistive current can be separately shown in the control panel;



Inductive load :0-1079 .7 KVA continuously adjustable, step amplitude 0.1KVA; three-phase inductive current can be separately shown in the control panel;



Capacitive load :0-1079 .7 kvar continuously adjustable, step amplitude 0.1kvar; three-phase capacitive current can be separately shown in the Control Panel.



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Renesas target air-conditioning, solar cells and fuel cell market

Renesas target air-conditioning, solar cells and fuel cell market




Renesas Technology February 9, 2010 issued 32bitCISC microcontroller (MCU) "RX Series", paragraph 3, Product "RX62T races", a total of 12 species, 40 models. Features for air-conditioning outdoor unit, solar cells, fuel cells, and digital power supplies inverter control equipment, enhanced timers and analog functions. Will be in March 2010 will begin to supply samples.



Renesas Technology in March 2009 released the first product in RX series of "RX610 races", in October 2009 released the RX Series, No. 2 product "RX62N and RX621 family." RX610 tribe, the higher generic products, while RX62N, RX621 family and the family of RX62T dedicated products. RX62N and RX621 family targeted at industrial equipment, while the application of this family of RX62T goal is to household air-conditioner outdoor unit such as power inverter control equipment.



Inverter control equipment needs (1) measurement based on the AD converter inverter current, (2) the use of processor cores calculus, (3) output timer-based motor control using PWM waveform. The right of RX62T (1) ~ (3) have carried out to strengthen each function. With respect to (1), AD converter, in addition to improving the accuracy of current detection capabilities, he also made through the built-in external model analog components, reducing costs. (2) processor core with the previous RX series, as can be achieved under 165DMIPS high-performance 100MHz. (3) The timer is equipped with a new unit through the "MTU3", a maximum of three-phase motors can be controlled. Furthermore, 100MHz when the current consumption is also reduced compared with the original 1 / 2, only 50mA.



Renesas Technology plans to begin in December 2010 from 10 million / month in the scale of mass production by 2012 to 1 million / month. In addition, RX62T family using 90nm-class copper wiring process, in Renesas Technology's Naka No. 2 plant. After the installation process in the Suzhou plant.



This release RX62T family, it is expected RX series of products to March 2010 will be increased to four families, a total of 79 models products. In addition, the company is scheduled in December 2010 an additional 3 months before the new family, a total of 83 product models, when the family will reach a total of 162 models. In addition, the planned additional three new family of products will cover a wide range of applications, rather than specific products. RX Series In addition to the above-mentioned "RX600 Series", there will be launched in the 2010 low-power "RX200 Series."



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Both power grid investment and new energy are beyond expectation

Both power grid investment and new energy are beyond expectation




Industry reports.



2009 electricity consumption by 2009 pairs of grid investment in the national electricity consumption in society as a whole 3.643 trillion kwh, an increase of 5.96%, the second industrial power 2.6993 trillion kwh, an increase of 4.15%. 2008 high power bidding pushed up power grid in 2009 the total investment reached 384.7 billion yuan. In volume terms, in 2008 the tender in 2009 State Grid 110kV and above the capacity of the new substation and transmission line length is much higher than 2008 levels.



In 2010 a tender placid, 2010 State Grid a tender baked, and continued in 2009 a lower number of features. In addition to isolated increase in the number of switches, the transformers and circuit breakers total bidding has declined over the same period, but modest. However, from structural point of view, a tender in 2010 clearly reflects the importance of special high-voltage, 800kV circuit breaker and isolating switch the number of bids compared with a year earlier and were up seven sets of six sets; 500kV transformer also increased the total tender 7.43 %.



New Energy in January of this year hit a total tender amount of wind power installed capacity 1.07 million kilowatts, a total investment of 14.59 billion yuan, so that the amount of annual installed capacity of the tender will reach about 12.84 million kilowatts, up from last year, the amount of actual installed. Although, according to our statistics, in January to shore and offshore solar component prices are basically stable, a decline between, there are still many companies chose to expand production.



Market report.



Electrical equipment in January to outperform the overall electrical equipment in January decreased by 2.09 percentage points over the same period in Shanghai and Shenzhen 300 fell 10.68 points, to outperform the overall trend. As of the end of January, power equipment, to reach 45.75 times the overall PE, ranking seventh, much higher than the Shanghai and Shenzhen 300 index of 21.73 times the level. In the smart grid standards and new energy sources is expected the new planning the upcoming Under the secondary equipment - electrical control equipment, have risen far more than the industry average.



Our point of view.



Domestic solar power inverter market will foster market opportunities according to our research, we believe that, in terms of the availability of financial resources or additional terms from renewable energy sources, the state supports the maintenance of domestic solar industry, the rapid development of recent years is still very easy. With the decline of the European PV market in the next few years, China will take over the world's leader in photovoltaic development in the banner. Birth of domestic solar energy development will be complementary inverter markets. Given the current listed companies, Kyushu Electric and Section China Hengsheng prepared in this regard, and greater flexibility in production capacity, we recommend investors to focus on. First Capital Securities Co., Ltd..



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2010年2月25日星期四

Battery in the application of PV systems

Battery in the application of PV systems




China's vast territory, population, unevenly distributed, the East Missy sparse, due to geographical environment and the economy is relatively backward and other factors, the relative lack of power in some areas, the state electricity grid can not be covered by an inability to concentrate power, or power quality and instability, to the local economic development, improving people's lives caused by some obstacle. Especially in China, North, Northwest, etc. problem is especially highlighted the urgent need for a stable and reliable for use when the power system. Is now a separate power supply systems are commonly used generator sets, solar energy systems, wind power systems, scenery complementary system.

Generating units, in order to promote an energy as a power source for internal combustion engine, internal combustion engines driving generators, generators do magnetic field lines cutting transport \ movement to generate electricity. The primary energy resources are getting scarcer and prices higher and higher, and the serious impact on the natural environment.

Solar energy systems, wind power systems, scenery complementary system to the natural world with the endless inexhaustible solar energy, wind power as an energy source, by means of some equipment can be used for installation into electrical energy, this energy of natural, environmental protection, fully embody the energy-saving, environmental protection, love the concept of the earth. And such power can continue to supply the capacity of storage devices needed to provide protection, the key equipment used in nickel-cadmium storage batteries, battery. However, as the cost of raw materials, the lack of other reasons, Nickel-cadmium batteries gradually been replaced by battery. Photovoltaic systems as an example below to tell us about the battery in the application of PV systems.

Solar System Introduction

1. PV system works:

In the light conditions are good cases, the solar cell components produce a certain electromotive force, through the formation of components of the series-parallel solar cell matrix, making square voltage system input voltage demands. Part of the supply of electric power systems use, in part through the charge and discharge controller to charge batteries, solar energy conversion to electrical energy from storage. Who fail in the light conditions, the battery and through the power inverter to provide the electricity needed to power system.

2. PV system components:

PV system is composed of solar cells square, battery, charge and discharge controller, inverter and other equipment composition. The role of the various pieces of equipment are:

(1) solar cell matrix: in a light case, the battery to absorb light energy, the battery charge at both ends of the accumulation of opposite sign appears, that is produced \ "photo-voltage \", that is, \ "photovoltaic effect \." In the photovoltaic effect under the influence of electromotive force generated at both ends of the solar cell will convert solar energy into electrical energy, is energy conversion device. Silicon solar cells are generally divided into monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells Triple kinds.

(2) Battery group: its role is to store solar cell matrix issued by the illumination energy and ready for power to the load.

(3) Controller: automatic control of power options in the city, electricity, solar power, battery power to choose between, for battery charging.

(4) Inverter: DC is converted into alternating current equipment.



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Photovoltaic power generation system with battery working conditions

Photovoltaic power generation system with battery working conditions




In the photovoltaic power plant using the environment, lighting conditions are good (for day), solar battery components to receive sunlight, the output power, part of DC and AC load of work, another part of the supply battery charger, when bad light conditions (night or rainy days), Solar battery components can not work, battery power supply, the supply of DC or AC load, the battery is in a cycle of state, therefore, in this use of the environment, the battery life cycle life.

The batteries used in PV systems in the working conditions and batteries used in different working conditions on other occasions. The main differences can be summarized as the following:

(1) charge rate is very small, due to cost, location, space and so on, the number of solar cells will be ruthless put huge constraints, in order to ensure the normal use of the power system is often provided to the battery charging power has become very limited, the average charge current generally 0.0510 ~ 0.110, ruthless little to 0.110.

(2) The discharge rate is very small, too much energy system designed to take into account the maximum load capacity, the longest standby time, larger capacity battery configuration, but the actual process of using the design load the load is relatively much smaller, battery discharge rate is usually 20 ~ 240, or smaller.

(3) due to natural resource constraints, battery only when there is sunlight in order to charge: the charge time is limited.

(4) can not be given the charge according to the laws of the battery to recharge.

Photovoltaic power generation system for battery performance requirements:

Photovoltaic power generation system in charge of the battery frequently - the repeated renewal of discharge cycle, due to the instability of sunshine, over charge and deep discharge adverse situations have occurred, coupled with photovoltaic power generation system used mostly in the western region, altitude are more than 2,500. Therefore, the photovoltaic power generation system in the battery has the following requirements:

(1) has a deep-cycle discharge performance, long charge-discharge cycle life

(2) resistance to overcharge ability

(3) Cross-discharge capacity recovery after the strong ability

(4) Good charge acceptance

(5) The battery in a static environment, when used in the electrolyte layer is not easy

(6) has a maintenance-free performance of maintenance or less

(7) should have a good high and low temperature charge-discharge characteristics of

(8) can adapt to high altitude (elevation above in 2500) area of the use of the environment

(9) battery in the battery good consistency.



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The factors of affecting the life of photovoltaic power generation system battery

The factors of affecting the life of photovoltaic power generation system battery




(1) The positive active material softening off

Batteries in the recycling conditions, the battery failure is mainly from the positive active material () is softening, shedding due.

Lead-acid battery recycling process, the positive and negative electrode active material through dissolution of the reversible re-deposition process, changing the structure of porous lead dioxide electrode. Especially lead dioxide electrode, may give rise to apparent size increases, the change in particle and pore size distribution, porous structure of lead dioxide particles combined mechanical properties and electrical conductivity decreased as the cycle continues, this the situation will further deteriorate, with the result of active substances in the region softening and shedding.

(2) The impact of discharge current on the battery life of

In the photovoltaic system, the battery discharge current is very small. In the small current conditions, the formation of four high-current conditions than the formation of four conversion much more difficult. This is because the current conditions in small crystalline particles formed by four high-current conditions than the formation of four crystalline particles thick, coarse crystalline particles of 4 to reduce the effective area of 4, so that when re-filling accelerated plate polarization, lead to four into difficulties, as the cycle continues, the situation will be exacerbated with the result that can not be recharged into the electric plate, finally led to the battery end of life.

(3) The battery capacity after deep discharge recovery

In the photovoltaic system, the battery discharge rate than batteries used in other occasions is low, usually ranging from 20 to 240, even lower. A small current, the depth of discharge means that a very on-board active substances will be more fully utilized. In many PV systems, usually does not occur in the depth of discharge, unless the charging system failure or a long period of bad weather continued. In this case, if the rechargeable battery is not timely, curing the problem will become even more serious, and further lead to capacity loss.

(4) The impact of acid stratification on battery life

Electrolyte stratification is due to gravity's role in the process of charging and discharging the battery produced, that is, charging has produced 24 positive and negative electrode surface, its density, due to gravity and sink. In the discharge, the positive and negative plate surfaces consumption of 24, so the surface of liquid layer density, low-density along the plate between the increase in the electrolyte, while the polar group of the upper part of a very high density of the electrolyte from the base to the downstream side of the electrolyte resulted in the movement of the upper low density and lower density. Stratification generation of battery life and capacity will adversely affect the accelerated positive grid corrosion and shedding of live material, resulting in negative plate sulfation.

(5) electro-hydraulic density on the impact of lead-acid battery life

The concentration of electrolyte not only with the battery capacity, but also to positive grid corrosion and negative active material of the sulfate. High concentration of sulfuric acid accelerated positive grid corrosion and negative active material sulfate and lead to increased water loss.

(6) the impact of grid alloy

Battery, due to long-term use, cathode grid in the electrolyte under the influence of the progressive corrosion and raised grid to grow up to live a combination of physical and grid decreased, leading to gradual loss of battery capacity. This positive grid corrosion and grew up mainly by grid alloy composition, the electrolyte density and shape of grid ribs and other factors.

In the battery charging process, the grid and active material to form non-conductive interface layer, these non-conductive layer or low-conductive layers and interfaces in the grid caused by a high-impedance, resulting in fever and board charge and discharge when the gate near the expansion, thereby limiting the capacity of the battery (so-called effect).

(7) the impact of the thickness of plate

The thickness of plate should fall within the battery design in general, thick plate cycle life longer than thinner plates, while the utilization of active material compared to some worse. However, help extend the life cycle of the loop.

(8) assembly of the pressure shadow

Assembled battery life with relentless pressure on the major impact of partition flexibility to poor assembly, very non-pressurized or pressure groups too small partitions and plates can not maintain good contact between the battery capacity dropped significantly.

In the cycle, the active material expansion, loose, fall off the end of the battery life of one of the reasons in advance, while the assembly of a higher pressure can prevent the active material in the deep loop in the process of expansion. If the assembly pressure is too low, will also lead to premature clapboard with plate separation of the difficulties caused by electro-hydraulic transmission, the battery internal resistance increases rapidly, easily lead to battery end of life. Therefore, using a high pressure cell assembly with long cycle life assurance.

(9) Temperature

High-temperature dehydration of the battery dry, hot out of control, positive grid corrosion and deformation and so the effect of accelerating the role of low temperature will cause negative failure, temperature fluctuations will be accelerated dendrite short circuit, etc., which will affect battery life. Discharge in a certain range of ambient temperature, the use of the capacity increases with increasing temperature, with the lower the temperature decreases. At ambient temperature within 10 ~ 45 ℃, lead battery capacity increases with increasing temperature, such as valve-regulated lead-acid batteries discharge capacity at 40 ℃ than at 25 ℃ large discharge capacity of about 10%, but above a certain temperature range, on the contrary, if the ambient temperature 45 ~ 50 ℃ under the conditions of discharge, the battery capacity significantly reduced. Low temperature (<5 ℃), the battery capacity decreases as temperature decreases, the electrolyte temperature decreases, its viscosity increases, the ion transport \ move by a lot of resistance, diffusion capacity to reduce the electrolyte resistance at low temperatures also increase large, the electrochemical reaction resistance increased, resulting in decreased battery capacity. Second, low temperatures will also lead to decreased utilization of active material negative impact battery capacity, such as the battery in -10 ℃ ambient temperature ambient temperature discharge, negative plate capacity of just over 35% of the rated capacity.

Under normal circumstances, if at 25 ℃ under the conditions of use, battery life of three years, then 30 ℃ under the conditions of use, it fell to 2.5 years, 40 ℃ when it fell to 1.5 years. That is 25 ℃ as the base is increased by 10 ℃, its life shortened by half



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Wanjiale holds 20% stake of new Thermaltake Optical

Wanjiale holds 20% stake of new Thermaltake Optical




The tender offer is conducive to solar power companies to enter the emerging industries, and promoting the company's photovoltaic power inverters and the development of new energy producing home appliances in line with national industrial policy direction and corporate development strategies.



MACRO's announcement that January 15, 2010 and the Guangzhou New Holding Group Co., Ltd. (hereinafter referred to as "three new holding") in Foshan City Shunde District, signed the "Equity Transfer Agreement", have agreed to 2.8568 million yuan transferee 3 new holding held by the Guangdong Yao Optoelectronics Co., Ltd. (hereinafter referred to as the "new Thermaltake Optical"), 20% of the shares. The share transfer, the MACRO will hold a 25% stake in the new Thermaltake Optoelectronics, the transferee's new Thermaltake photoelectric corresponding to a 20% stake in the unpaid amount of 5.1432 million yuan invested, will be to continue to fulfill the remaining funding Wanjiale obligations.



Yao is a new third-generation optical high-condenser type (HCPV) solar power modules and power generation systems development, design and industry into a major business direction of the high-tech companies, on July 1, 2009 incorporated registered capital of 40 million yuan, three new holding, holds 70% stake in its natural capacity to hold 25% stake in Ray, Wanjiale holds 5% stake. Main business components, including solar photovoltaic research and development, procurement, production and sales; photovoltaic power generation systems engineering integration, photovoltaic applications and supporting equipment, research, manufacturing, sales and after-sales service; goods, import and export, technology import and export.



As of December 31, 2009, the new total assets of 8,277,909.66 yuan Yao photoelectric, total liabilities 562,290.05 yuan, net assets of 8,840,199.71 yuan, the total amount of receivables to 0 million; the company's 2009 revenues of 0 million operating profit for the loss of 515,827.81 yuan; net loss of 515,827.81 yuan; cash flows generated from operating activities net -7641575.43 yuan. The share transfer, the three new holding to hold the new 50% stake in Optical Yao, Yao Wanjiale to hold the new 25% stake in Optical. The new Thermaltake photoelectric Wanjiale transferee of the shares corresponding to 20% of the unpaid amount invested 40 million yuan × 20% × (1-35.71%) = 514.32 million, by the Company to continue to fulfill the remaining obligations under funded.





MACRO said that in recent years as the country to develop solar and other renewable energy sources, domestic demand for photovoltaic power inverter surge began. According to the national "renewable energy development and long-term development planning," in 2011 to 2020 average annual demand for solar power generation installed capacity is expected to reach 15 million kilowatts, according to the current 3.5 per unit PV inverter / W, is estimated to 2011 to 2020, annual market capacity of the domestic market for more than 500 million yuan.



PV inverter industry in China is still an emerging industry, mainly by the universities for research. MACRO-owned subsidiary SUNTEN Co., Ltd. (hereinafter referred to as "SUNTEN") is currently carrying out photovoltaic inverter, by virtue of the transmission and distribution areas of technology and engineering experience accumulated quickly cut into the PV inverter device industry, and strive to seize the market opportunities, cultivating new market growth. The new dazzle in HCPV solar photovoltaic modules and power generation systems technology and techniques, will be SUNTEN PV inverter technology projects to achieve good docking and sharing, and promoting SUNTEN photovoltaic inverter technological breakthroughs and rapid industrialization. At the same time, once the new third-generation high-Yao optical condenser type (HCPV) solar power modules and power generation systems, technology and processes mature, fully-owned subsidiary of another may be related to Wanjiale Gas Appliance Co., Ltd. Guangzhou Macao Kitchen & Bath household electrical appliances generate docking, thus effectively promote new energy appliances Wanjiale R & D and industrialization.





According to Wanjiale said the new dazzle in high-concentrator solar photovoltaic power generation module R & D and industrial production in the domestic leading position, this tender offer is conducive to companies to enter the emerging solar power industry will help promote the company's PV inverter and new energy R & D production of home appliances in line with the national industrial policy direction and corporate development strategies.



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2010年2月6日星期六

Solar energy promotes the development of LED lighting

Solar energy promotes the development of LED lighting




LED in recent years has been a very wide range of applications, including the backlight, indoor and outdoor displays and lighting, etc., in the LED driver IC market, which involves the power product line with the semiconductor industry, the basic are being progressively introduced continuously from a low-power to a variety of high-power LED driver products.



People before the concept of the semiconductor green lighting stay in LED lighting, LED luminous efficiency enhancement as well as declining costs, LED lighting penetration has increased significantly. Now, the popularity of new energy sources solar cells, allows us to generate electricity using semiconductors, semiconductor and semiconductor LED light source control circuit consisting of a true green and intelligent lighting systems.



Energy-efficient LED, coupled with clean energy, solar energy is composed of the attractive prospects, but also makes the cost of the maturity of technology, a sharp decline, or even sold on the network mini-solar LED flashlight a few dozen yuan. In addition, a larger scope, we find that solar energy is becoming increasingly popular street.

A large part of the popularity of solar energy street lamp because simple installation can be inserted on the roadside, and rather than using alternating current needs of the street as shops cables, the construction of transformer room and so on. However, unlike other power supply of the LED (eg AC), solar-powered LED panels have special requirements, such as solar LED lights are used in battery output voltage instability, which need to address the issue of constant-current drive, a special solutions, including the Shanghai Long-mao Microelectronics Power Analog Microelectronics Corporation and completed SLM2842 module companies, National Semiconductor Corporation's off-line constant-current control driver and so on.



Weather determines the instability of solar-powered, so there is a program that is the exchange of electricity and solar hybrid power supply, but this is left to the designer's challenge is how to design a type of instability efficient automatic dimming of the LED streetlight solution? LED lights generally require more than 25W power, depending on the scope of required lighting and installation of fixed height, Arrow developed based on the AC mains input solution of choice for LED street lamps lighting the Cree-level XLampMC-ELED, NXP of the PFC controller and the Anti-shock controller, SSL1750, as well as TI's DC / DC constant current controller, TPS40211, perfect to solve this problem. Where, XLampXR-ELED is a lighting-class multi-chip module, the number of lumens per watt up to 107; NXP's SSL1750 is a suitable for driving 25W to 250W of LED lighting applications, switching power supply controller IC; SSL1750 integrated PFC controller and a flyback controller, making AC / DC conversion efficiency of more than 90%; TPS40211 is a wide input (4.5V to 52V), non-synchronous boost controllers.



Controller is mainly used to control the battery charger and battery power to the LED. LED constant current controller to ensure that work, will also monitor the status LED as well as control the length of working hours. Continuous overcast and rainy days, as well as the absence of sufficient battery power, the controller will issue a control signal to start the external electricity supply system to ensure the normal operation of LED. The controller is controlled via a MCU to achieve, MCU's main duties include the following: First, use of MPPT algorithm to optimize the efficiency of solar panels; two different states against the use of appropriate battery charging mode; 3 is to ensure that LED The constant current drive circuit output; Fourth, to determine day and night, and as a means of switching battery charge and discharge mode; the last is to provide monitoring and protection, temperature monitoring, status output and user control input detection. In a variety of MCU program, STMicroelectronics is based on the introduction of a complete solar LED street light STM32MCU program.



Currently, most solar power inverter solar panels can only come from one of the best position of the solar panels to optimize the overall efficiency. This optimization method has seriously hampered the efficiency of solar power generation systems. National Semiconductor SolarMagic technology will bring about innovation in solar photovoltaic system. SolarMagic is not a single IC, the shape of the module shape, size 10 × 12cm or so. The technology can be intelligent management of solar photovoltaic (PV) power panels can monitor and optimize each cell board capacity, so that they can be the best power point to run, and to improve the current flow in the battery plates. Through the use of SolarMagic technology, solar power generation system Ke Wanhui more than 50% loss due to transmission, or a shadow mask with the loss of generating capacity.



Prospects



Progress of the semiconductor industry, the mobile phone, PC and so became a common necessity. Although the current situation is sometimes the cost of new energy sources is not inferior to the use of traditional energy sources, such as the cost of electricity, compared with the existing solar / wind power generation cost to be several times higher. But no doubt, new energy has clearly risen to the height of the national strategy, the inevitable advances in technology will bring new energy into a mobile phone and PC similar to the same universal necessity.



All signs indicate that the new energy will be low-carbon economy based on a modern technological revolution. Can be predicted that 2010 will surely be a big fuss around the new energy a year, not just solar / wind power generation, new energy vehicles, new energy lighting, as well as the broader application of waiting to be excavated. The future of new energy industry value chain will focus on the collection of new energy and new energy utilization, more efficient collection and open up new applications of new energy sources for semiconductor manufacturers to develop new value to growth.

To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

Solar Charger: cost reduction, access to the consumer market

Solar Charger: cost reduction, access to the consumer market




Solar chargers have been coming out the consumer market. Recalling the 2009 emergence of some products, including Novothink's price 70 U.S. dollars, access to Apple authorized iPodtouch and iPhone solar charger "Surge", built-in battery capacity is 1500mAh, the charging two hours later, you can under the 3G network provides 30 minutes of talk time, in the 2G networks provide 60 minutes of talk time. There are many other similar products, such as iCharge is a compact and portable multi-function solar charger, can be three kinds of ways of power-storage; Energizer battery charger solar panels and swivels to provide a USB charging interfaces, including the two AA rechargeable batteries, including charger sold at 50 dollars or less; a number of China-made to the phone via USB port, PSP game consoles, portable solar charger charge concentrated in the 200 yuan to 500 per month.



Solar charger with a low cost access to the consumer market, semiconductor companies have made great contributions for the solar charging IC in efficiency, reliability, stability, innovation and other aspects. Linear Technology Corporation (LTC) for the solar power monolithic buck battery charger ICLT3652 regarding the use of an innovative input voltage regulation loop, the loop responsible for controlling the charge current to the input voltage to maintain In a programming level on. When the LT3652 is connected to a solar panel, enter the adjustment loop panels will remain at peak output power. LT3652 acceptable to a wide 4.95V to 32V with a 40V input range and absolute maximum ratings in order to increase the system margin. Input voltage regulation loop also allows the introduction of regulated power supply in case of bad (At this point, in the over-current conditions, the importation of a potential breakdown) to achieve optimal charge.



The basic type of charge controller is designed to protect the batteries from overcharging or under-charge effects and to prevent reverse current. Pulse-width modulation (PWM) controller will control the electricity to charge the battery, and can achieve the trickle charge in order to protect and prolong battery life. Support the maximum peak power tracking (MPPT) controller can function in solar cells to changing V / I characteristic curve to provide compensation to optimize the solar cell power output, improve energy efficiency, and to optimize the battery charger to power. ON Semiconductor for solar panel battery charging solution for control applications, the core uses CS51221 enhanced voltage-mode PWM controllers support the maximum peak power tracking, input voltage 12 to 24V, output current of 12V @ 2A, and to provide an adjustable pulse-by - current limiting, input undervoltage lockout and output overvoltage lockout and other protection. The controller provides auxiliary inputs for remote transmission and monitoring; able to adapt to power up to 90W of solar panel applications.



Inverter: Technical / market are mature



In the solar system, the inverter into alternating current to direct current, when the lighting load when the DC without the use of (such as LED lighting), while the lighting load for the exchange of load must be used. Taking into account the low conversion efficiency of solar photovoltaic, solar panels through the power obtained by "hard-won", which also highlights the inverter conversion efficiency important. In the inverter area, mature technology enables a number of vendors power inverter conversion efficiency as high as 90% above, including TI, Fairchild, ON Semiconductor, Infineon, and many local power companies and so on.



In addition, the majority of independent solar power equipment in remote and poor working environment, which requires inverter can be used in harsh environments and less maintenance of long-term stability under the conditions of work, a lot of inverter also added a short circuit protection, less voltage protection, over-current protection, reverse protection and lightning protection.



Solar energy systems need to use more broad application of the power inverter, which for many involved in the power IC and component vendors tremendous opportunities. iSuppli expects the global 2012 inverter for solar energy systems in 2008, when shipments will increase to 723,329 to 9.5 million month.



To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

The new energy applications, semiconductor demand pulled

The new energy applications, semiconductor demand pulled




Title of new energy sources is very interesting pieces of things, many of the new energy source of its energy very ordinary, the "new" only refers to the way the new, such as the addition to the traditional energy sources outside the solar, wind, hydro, bio-energy , geothermal energy, ocean energy and so on. Passed in 2009, we have seen, the new energy industry during the financial crisis hit, still maintained a high growth rate; and into 2010, from government to firms and then to the public, the whole community seemed to be more enthusiasm for new sources of energy high, the semiconductor industry is also deeply concerned about the new energy development has brought new opportunities.



Warm sun, the new energy market

Chinese President Hu Jintao last September at the United Nations summit on climate change has said that 2020 win China's "non-fossil energy sources," the proportion of total primary energy consumption up to 15% or so. Alleged in the "New Energy and Industrial revitalization Development Plan (Draft)," pointed out: "By 2020, new energy power generation accounted for the proportion of the total electricity installed capacity up to 15%, including solar power installed capacity in 2011, 2020, respectively 200 million kilowatts and 2,000 kilowatts. It is noteworthy that solar power generation installed capacity target in 2020 made before the planning than the national target has been increased by 9 times. "Topology market research agency in 2010 estimated market demand for solar power in China will reach 620 million U.S. dollars , up to 138.5% of the annual growth rate will also see its development potential.



A broad market-driven companies desperate to reduce the cost of solar power, the most simple way is to increase the photoelectric conversion efficiency of solar cells. But solar photovoltaic conversion efficiency can achieve most of the commercial mass-production is not more than 20%, although with lots of room, but was limited by restrictions on the basis of the material progress of its upgrade very slow. AC power applied to examine the core components: solar panels, solar charge controllers, batteries and power inverter, we have found the opportunity to leave the semiconductor manufacturers to focus on charging and inverter link.





To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

Using laptop in car make the fuse wire burned

Using laptop in car make the fuse wire burned




"Too strange, how the car will suddenly burn out fuse? The car, but I just bought!" Yesterday, Mr. Lin will be the public 3 months ago to buy Peugeot 307 drove into the auto repair shop, repair master found that, in addition to fuse blew, the car was burnt wiring. Little do they know this is due to the vehicle caused by the use of notebook computers.

"It's not vehicles, their own problems, but because of some car owners to install their own electrical appliances, such as dvd, navigation and other related circuit-board vehicle equipment caused." See the breakdown vehicle, an auto repair shop in the urban Ma Zhen Lu Master Chen would say for sure. Upon inspection, vehicle breakdown is indeed installed on their own because of Mr. Lin, a notebook car charger in the vehicle caused by the source adapter. The notebook car charger source adapter is installed directly on the cigarette lighter in the car, the assembly is very unstructured. "Using high power electrical appliances, you must use the battery clip wire to take power directly from the battery. Automobile cigarette lighter fuse is generally 15a, is only rated at 150w for the use of the following appliances. Because of improper use of the car burned wiring and fuse. "Chen he says.

"Car ago, I have been considering a question he sometimes needed in the car using a laptop wireless Internet access, but the computer's battery-powered time is limited, often because no power to delay a lot of work. Happened last month, a friend sent I have a laptop car charger source adapter, you can at any time in the car to a laptop, cell phone charging etc., convenient and practical, simply did not expect that there will be problems. "Mr. Lin said. He used the source adapter, laptop car charger, in fact, car inverter, is a type that can usually only at home in order to use electrical appliances such as televisions, dvd, notebook computers, through the conversion can also be useful in the car.

"This is our auto repair shop in the last month to repair vehicles, the use of a third car inverter failure caused by a car." Auto repair shop owner told the reporter, with the gradual increase of private cars, some owners of "a car at home one "The idea of more and more common, some people will for the car fitted with car refrigerators, reversing radar; while others will be mobile phones, laptop charging on a vehicle, not knowing the car once the improper use of electrical appliances, can easily lead to accidents. "Car space is limited, its original point of the circuit in the wiring and circuit spare capacity is limited, so car owners to use extra space on the circuit is very small, if a substantial increase in car electronics, random wiring will lead to electrical short circuit, ranging from damage to electrical equipment, while in a fire. Therefore, the auto installation of electrical equipment should be careful. "chef Chen explained.

Repair Master also reminded owners to install additional electrical equipment must be car-specific, select the vehicle power inverter Do not covet cheap, buy plastic shell products, but should be selected metal car inverter. Because when using high-power car inverter, the higher the heat, if not timely and cooling, ranging from the impact component life, while in a fire danger, comparatively speaking, metal has good thermal characteristics, also not burn.

In addition, the master also recommended that car owners will not repair its own vehicle electrical installation, to install have to go to the regular auto repair shops. Because modern automotive circuit design, layout tends to be electronic, electrical installation requires very norms, if not installed correctly, or not solid, it is very easy to break, fall off, causing short circuits, damaged electrical equipment, triggering a fire.





To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

2010年2月5日星期五

The new train No. 2/8 is expected to be on the service on Spring Festival

The new train No. 2/8 is expected to be on the service on Spring Festival




Corporation revealed: two lines can be realized after the opening of the new trains to run mixed

Recently, this reporter learned from the Guangzhou Metro Corporation, the Asian Games before the opening of the subway No. 2/8, its new trains will be able to in the new line on the 2nd line and on the 8th to achieve mixed run, two-line capacity to improve co-ordination and co-ordination. Recently, the first train of such cars have been entered on the 2nd line, input is line of passenger.

Two new passenger train fleet has been on-line

According to reports, the MTR No. 2/8 is on the 2nd line of the existing extension on the basis of a new line and be opened for the Metro Line, Metro on the 8th line. As of 20th of the month, the MTR No. 2/8 trains have arrived in silang Depot. At present, the MTRC has to debug the 10 trains at an early date so that a new car to meet with the public. In addition, the Corporation has arranged for two new train on the 2nd line is line of passengers. If the debugger goes well, before the Spring Festival on the 2nd line will be No. 2/8 of passenger cars on-line to better serve the Spring Festival.

MTR Corporation revealed that opened on the No. 2/8, the new car will be dedicated to put in the new line on the 2nd (Golden Harvest - Passenger Station) operation. At the same time, once the No. 2/8 of realization of dismantling, the car will be able to in the new line on the 2nd line and on the 8th to achieve mixed race, 2 lines of integration and coordination capacity will be greatly enhanced.

The new train to watch the Asian Games tournament

It is understood that opened this year, Guangzhou will build six subway lines. To the Asian Games, held prior to the formation of 235.7 kilometers to miles, 148 stations of the subway line size of the network. By then, there will be more than the Asian Games venues Bacheng subway pass. During the Asian Games, the public subway No. 2/8, but also through each carriage houses, some eight 19-inch TV, while car while watching the Games in Shanghai.

No. 2/8 there are six characteristics of the train on the 8th Line

Guangzhou Metro No. 2/8 train localization rate of 70%. The basic technical specifications and on the 2nd line of the train no less dramatic: a width of 3 m, length 140 meters; maximum capacity of each column 2592, and a high speed of 80 km. In addition, it also has six characteristics: First, the middle of every two cars seats specifically set up dedicated disabled parking spaces; two sliding plug door is a door using the door is closed, after a good flush with the outer surface of the train; third is to use the Mandarin, Cantonese and English in three languages, auto-stop; four of every carriage with eight 19-inch television, than it is now on the 2nd line of train TV big 2 inches; 5 is a distributed grid-6 auxiliary power inverter device power supply, even if one of the auxiliary inverter fault can also ensure that air-conditioning system inside the normal functioning; 6 is a bridge with light guide plate material, to facilitate drivers in the dark circumstances of buttons, switches recognition and use.



To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

The working principle of UPS

The working principle of UPS




From basic principles in terms of application, UPS is a device that contains stored energy in order to inverter as the main component, regulated stable frequency output power protection equipment. Mainly by the rectifier, batteries, power inverters and static switch of several components.

1) rectifier: rectifier is a rectifier device, simply means that the exchange of (AC) into direct current (DC) devices. It has two main functions: First, the alternating current (AC) into direct current (DC), through the supply of filtered load, or the supply inverter; second, to provide battery charging voltage. Therefore, it is also play a role in charger.

2) Battery: UPS battery is used as a storage energy device, which consists of several cells in series, with a capacity to maintain its size determines the discharge (supply) time. Its main function is: When the electricity is normal, the energy converted into chemical energy stored in the battery internal; when the electricity fails, the chemical energy into electrical energy provided to the inverter or the load.

3) Inverter: popular speaking, the inverter is a DC (DC) into alternating current (AC) device. It consists of inverter bridge control logic and filter circuit.

4) Static Switch: static switch also known as static switch, which is a non-contact switch, is to use two SCR (SCR) reverse parallel composition of a communication switch, its closed and disconnected from the logic controller control. Conversion and the model is divided into two kinds of type and. Conversion-type switch is mainly used for two-way power supply system, its role is to achieve all the way to another road from the automatic switching; and model switch is mainly used for parallel inverters with electricity or more inverter.



UPS's matching

Generally based on facilities in the electricity environment, and want to achieve power conservation purposes, select the appropriate UPS. For example: built-in switching power supply for low-power devices typically can choose Off-line UPS; in the electrical environment to poor areas should use on-line interactive type or on-line UPS; while the right does not allow the time or times required intermittent sine wave AC equipment that can only use on-line UPS. But also based on your device to select the general ordinary PC, or the IPC's power in the 200W or so; Apple machine is around 300W; server between 300W and 600W, other equipment, the power values refer to the device's instructions.

Secondly, we should understand the UPS's rated power of representation: apparent power (in VA); the actual output power (in W). Due to the presence of reactive power it had contributed to this difference, the conversion relationship between the two: Apparent Power * Power Factor = actual output power. Off-line, on-line interactive power factor between 0.5 and 0.7, on-line power factor is generally 0.8. With UPS for equipment should pay attention to: The UPS output power to match the actual basis, and some dealers intentionally or unintentionally, it will cause confusion (VA) and (W) the difference, which points to draw the user's attention.



Use of UPS

UPS should be noted that the use of items:

1) UPS's use of the environment should pay attention to well-ventilated, which will help heat and keep the environment clean.

2) Do not bring inductive load, such as the Counter, fluorescent lights, air-conditioning so as to avoid damage.

3) UPS's output load control is about 60% of the best, most reliable.

4) UPS with load is too light (for example, 1000VA, UPS with 100VA load) may cause the battery depth of discharge, will reduce the battery life, should be avoided.

5) Appropriate discharge, contribute to the activation of cells, such as the long-term non-stop electricity, every three months to be artificially cut off electricity to use UPS with a load-discharge time, so you can extend battery life.

6) For most small UPS, to work to open UPS, with load at boot time to avoid startup, work should be shut down UPS; for network computer room UPS, because most of the network is 24 hours, so UPS must also be running around the clock.

7) UPS charge promptly after discharge to prevent battery damage due to excessive self-discharge.



UPS maintenance and repair

The use of an uninterruptible power supply system in the process, people tend to one-sided view that is maintenance-free battery and not take this seriously. However, there are data show that due to battery failure caused by the host UPS failure or an abnormal proportion of the work of about 1 / 3. Thus, to enhance the proper use of the UPS batteries and maintenance, to extend the battery life, lower failure rate UPS systems, has become increasingly important. In addition to matching the regular brand batteries other than the following aspects should be the proper use and maintenance of batteries:

1) Maintain the appropriate environmental temperature: an important factor affecting battery life is the ambient temperature, the general requirements of the battery manufacturers the best ambient temperature is between 20 ~ 25 ℃. Although the temperature of the battery discharge capacity has increased, but the cost is the battery life significantly shortened. According to test the determination of the ambient temperature whenever they exceed 25 ℃, is increased by 10 ℃, the battery life should be cut by half. UPS is currently used batteries are generally maintenance-free sealed lead-acid battery, universal design life is 5 years, which is required in battery manufacturers environment can be achieved. Not reach specified environmental requirements, the length of their life there is a huge difference. In addition, the ambient temperature increase will lead to increased chemical activity within the battery, resulting in a lot of heat, in turn prompted ambient temperature, this vicious cycle will accelerate to shorten battery life.

2) periodic charge-discharge: UPS power supply in the float voltage and discharge voltage, in the factory have to debug into the rating, while the size of the discharge current increases as the load increases, the use of reasonable adjustments should be load, , such as controlling the use of computer and other electronic equipment, the number of units. Under normal circumstances, the load should not exceed 60% of rated load UPS. In this context, the battery discharge current will not over-discharge.

UPS due to long-term and electricity connected, in the supply of high quality, rare use of mains power failure environment, the battery will be a long period of float charge state, the course of time will cause the battery chemical energy and electrical energy conversion activity decreased with each other to accelerate the shorten the life of aging. Therefore, generally every 2-3 months should be fully discharged once, discharge time can be battery capacity and load size of the set. After a full load discharge, according to the provisions of recharge for more than 8 hours.



To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

Do not forget to take car emergency tool

Do not forget to take car emergency tool




Chinese New Year approaching, Zijia You, and return home again usher in peak flows. Long-distance traffic will inevitably encounter occasional problems, such as broken down, and the battery run out of power, and a flat tire and other troubles. This time the owner will need to have a fully equipped emergency kit useful, I believe that if your car on the words of these essential tools in the event of failure or accidental able to deal with it smoothly. Well, this emergency kit needs to be placed inside what tool? This issue, we have listed for you in an emergency situation, the most practical tool.



Flashlight-style Emergency Hammers

Car glass hardness is high, with a brick or wooden sticks, iron bars are hard to crack. At a crucial juncture, we need an emergency Hammers opened the door to escape, but such a device in a closed air-conditioned bus more than the car has, in ordinary cars but not on this configuration. You can go to malls to buy a knock on the glass with a function of the emergency flashlight, stand-by car, as a hedge, or when others are in trouble you can come to the rescue.

The use of emergency Hammers, it will be sharp steel pointed alignment of glass can be broken down energetically smashed the glass. Market, there is a multi-function emergency flashlight, usually has a cut off the seat belts and lighting, warning and other functions.

Reference price: 200 yuan



First aid equipment packages Package

MINI first-aid kit equipped with various types of dressings, bandages, safety pins, cool oil, iodine swab, compound alcohol wipes, band-aid, self-adhesive paste dressing, triangular bandages, cooling paste, first-aid kit and other professional first-aid supplies, so that car owners in case of emergency timely and effective rescue the patient, is essential to drive configuration.

Reference price: 130 yuan



Car Power Inverter

Car power inverter can convert 12V DC and 220V AC mains the same for general electrical use, is a convenient vehicle power converter. Output through the car cigarette lighter power inverter can be 20W, 40W, 80W, 120W up to 150W power specifications. Then larger power inverter power supply through the connecting cable to the battery. In need of special note here is that the purchase of car power inverter, not greedy large (power), mainly based on their electrical usage to choose. If only to mobile phones, digital cameras, digital video camera charger, and occasionally in the car with a used laptop, choose the 150W power inverter power source can be within the Gaoding; but if the owners need for frequent meals, or Zijia You lovers, 200W above inverter is a wise choice. Note, when using the car as possible Dazhao Huo.

Reference price: 160 yuan



Take the power over FireWire

Car radio will not boot to use it can be carried out through a separate battery to start the vehicle. The use of the process to note: two vehicles can not have any contact with the two vehicles electronic system must have the same voltage. If the battery had frozen, you can not use the battery started firing line of the ride. Before connecting, two car engine, audio, air conditioning need to be shut down. Need to connect the procedures are as follows: First, the red wire will start the line clamp in the "rescued car" on the red battery cathode. And then the other end of the red wire clamp in the "rescue vehicle" on the red battery cathode. The black wire clamp in the "rescued car" on the black battery anode. Then the black wire clamp in the "rescue train" the battery negative terminal on the black. First start the "rescue train" engine, and then start the "rescued car" engine. If it is found rescued cars are still unable to start, we must check whether the part being exposed metal contacts. Upon the completion of the engine, the still need to remove in order to start take the FireWire, or they may cause short circuit. Wire removal procedures are as follows: First, the "rescued car" black wire is lowered, then "rescue vehicle" black wire is lowered, then "rescue vehicle" In addition to the red wire, the final of "rescued car" the red wire lowered.

Reference price: 45 yuan



Automotive Fuses

The use of vehicles if there is no bright headlights or wipers do not move and so failure should first be suspected fuse may be damaged. General headlamps shall be 20A or 30A fuse specifications. Be sure to replace the fuse fuse specifications in line with the first wife can not arbitrarily increase the fuse current rating. If you go to replace a blown fuse once again shows that the circuit short-circuit fault has occurred, would like to invite professionals to troubleshoot and then fitted with fuses, 10 million can not be used to increase fuse size to deal with, or most likely cause a fire.

Reference price: 20 yuan



Other emergency tools

Large-capacity fire extinguisher

Reminded that the date of the date of such fire extinguishers from the factory to be scrapped after 10 years, when the pressure is below the green area should be a pointer directed timely replacement. Reference price: 60 yuan



Folding reflective warning signs

Defects in your car need to stop checking the time to have it placed 50 meters behind the car outside, reminding passers-by slow down in advance. Reference price: 40 yuan



Car hit pump

On the highway, field, or any place, if the tires suddenly leaks, playing air pump will be able to play its emergency function. Reference price: 168 yuan



Intercom

Driving on the way to inform each other traffic, condition, easy to mutual help and co-ordinated, long-distance journey, but also talk to each other so as to maintain a good driving condition and atmosphere. Reference price: 368 yuan



Waterproof tape or insulation tape, to avoid demolition of tire repair tools, nylon tow rope

May, without dismantling the tire cases, damaged tires Trapping is also to prepare at least be able to drag a 3-ton vehicle with a trailer, so that the car can be easily broken down when towing. Waterproof adhesive tape used for circuit water, pipeline rupture repair, insulation tape used for circuit maintenance.

Reference price: 100 yuan / 20 yuan / 40 yuan



To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.
Shanghai spot checks uninterruptible power supply products




Fourth quarter in 2009, Quality and Technical Supervision of Shanghai city spot checks the production and sale of uninterruptible power supply a special product quality supervision and checking. The nine batches of sample products, tested and qualified seven batches, with a pass rate of 77.78%.



According to sampling results, the nominal Sendon International Co., Ltd. produced a batch of "Sendon," uninterruptible power supply, full output characteristics - energy storage power supply, labeling and instructions, no-load output characteristics - energy storage power supply, anti - Electrical items such as failure strength, quality, a serious problem. Quality supervision departments to explain, no-load output characteristic - energy storage power supply item is UPS power supply energy storage status examination without load output voltage and output frequency of quality; full output characteristics - one is assessing energy storage power supply UPS Power Reserve be able to state with a load of the output voltage and output frequency of quality. Electric strength assessment item is UPS power protection capability of the strength of insulation, can cause failure of the target user's personal and property risk. Identification and description of item is assessing whether the UPS power rating marking clear that the indicators of failure will affect the users of the normal, safe use.



The checks also found that the nominal Electronics Co., Ltd. Shantou Sybase production of a batch of "Shandon" back-up uninterruptible power supply, no-load output characteristic - energy storage power supply project failed.



Uninterruptible Power Supply (UPS) to purchase and use of small common sense



UPS is short for Uninterruptible Power Supply, is a kind of contained energy storage devices (commonly battery) to inverter as the main component of the constant voltage constant frequency of the uninterruptible power supply, it can solve the existing electricity power outages, low-voltage, high voltage, surges, noise and other phenomena, make your computer more secure and reliable system operation. Has now been widely used in computers, communications, banking, securities, telecommunications, medical, industrial control industries.



1. Uninterruptible power supply (UPS) the types of

UPS back-up by the working principle is divided into style, on-line and online interactive three main categories:

1) Off-line UPS is the most commonly used, it has automatic voltage regulator, UPS power protection, the most basic and most important function, although most are around 10ms conversion time, the output of AC power inverter is a square wave rather than the sine wave, but the structure is simple and has a cheap, high reliability, it is widely used in computers, peripherals, POS machines and other fields.

2) on-line UPS structure is more complex, but the performance improvement of all power to solve the problem, its distinctive feature is the ability to continue to zero output pure sine wave AC power interruption, can solve the spikes, surges, frequency drift, and all other power problems; due require a larger investment, usually used in critical equipment and network centers of power demanding environment.

3) Line-Interactive UPS mains power supply at about 165 ~ 264 volts, within which to provide users with ferromagnetic resonance by the regulator or transformer tap voltage handling the general electricity supply, with the grid frequency fluctuations, but also From the string into the power grid interference. For this UPS is only when the mains supply voltage below 150 volts or higher than 264 volts or so, it is possible to provide users with a true "UPS of high-quality sine wave inverter" Power.



To learn more about power inverter, please visite http://www.szpowerinverter.com/ and http://www.bestekltd.com/, or mail to sale38@0102.cn.

2010年2月2日星期二

Blackfin BF50x Processor , new standard for industrial applications

Blackfin BF50x Processor , new standard for industrial applications




Integrated ADC's highest performance DSP 400MHz of the Blackfin BF50x processor is an integrated ADC of the DSP in the performance of the highest. Blackfin BF50x built-in dual-SAR ADI ADC advantage of ADI's world-leading ADC technology, effective resolution is the industry's other integrated 12-bit ADC of the DSP's triple to the industry-leading 11.5 effective bits (ENOB), making it including power inverters, UPS, servo control and motor control applications, ideal for the Blackfin's F50x series also introduced a new portfolio of peripherals - ADC Control Module (ACM), which provides the ADC sampling synchronized with the external events exact method of a low-overhead.



Industrial application of new standards for Blackfin BF50x processor for those industrial control and automation applications, design engineers have developed high-precision, energy-efficient system provides high-performance options, these applications include power inverters, UPS, power and motion control and intelligent measurement and advanced sensor applications, including power metering, flow / level measurement.



Higher processing performance to achieve greater system optimization BF50x processor family provides the performance headroom makes it possible in the advanced system modeling the use of advanced control theory and algorithms in order to achieve the best efficiency of any real-time systems and control efficiency. Design engineers will use the Blackfin BF50x processor for more precise control (such as sports), efficiency (such as power), reliability (such as power quality), and features (such as power line communications).



Independent evaluation of the proof of the leading cost-effective. Berkeley Design Technology Inc. (BDTI) on Blackfin BF504 benchmark analysis confirmed that the processor ahead of all competitive products, BTDI pairs of fixed-point digital signal processor with "the pace of cost per dollar than the" analysis, BDTISimMarK2000 / $ test score achieved a score of 498 points. BDTI benchmark to provide practical application of the expectations of the performance value, is the world's most widely used digital signal processing benchmark.



New low-cost development platform. For Blackfin BF50x of the EZ-KIT Lite evaluation kits only 199 U.S. dollars, including the ADI VisualDSP + + (R) development environment for evaluation kits. ADI also offers the value of 150 U.S. dollars a Blackfin simulator (ADZS-ICE-100B), provide design engineers with an integrated development platform, reducing the use of Blackfin BF50x family of processors threshold.



ADI co-operation partners to support the Blackfin BF50x processor. Blackfin BF50x partners provide value-added design services and technology, including the Boston engineering company, Advanced Energy Conversion and Schmid Engineering Corporation.



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The advantages of 400MHz BF50x processor

The advantages of 400MHz BF50x processor




Development in all fields will drive the inverter, motor control and intelligent UPS market, strong growth. In the power inverter, UPS, power and motion control, and power measurement, flow / level measurement such as smart metering and advanced sensor applications, design engineers need to be more precise control (movement), efficiency (power), reliability (power quality) and functional (power line communications). The BF50x processor 400MHz has the following advantages:



Motor control system designer can perform more complex algorithms, to ensure the system behavior according to changes in real-time dynamic control, to gain a more stable operating performance and lower power consumption. The use of sensorless vector control to achieve higher efficiency in motor control. The use of advanced modeling techniques can accurately determine the rotor position and / or speed without the use of position / speed sensor, a smaller system size, lower cost, higher reliability.



In UPS applications, UPS systems can be realized accurately, non-volatile power control, also has the ability to accurately analyze load changes and can predict the load mutation and loss of real-time events. BF50x processor, two three-phase PWM switching power supply unit to provide advanced features that make dynamic UPS system can respond to a variety of load conditions of the non-linear load; In addition, local control also has the ability to perform start / shutdown control and voltage adjustment and other functions.



Inverter in renewable energy applications, to perform complex algorithms, support will be volatile inverter converts the DC output of "clean" the current demand for housing and urban photovoltaic cells (PV) array and wind turbines to generate and into the commercial grid or local power grid current to adjust. Ultra-high energy extraction and transport, while providing high power switching control function in support of anti-islands and the maximum power point tracking (MPPT) capability.



The author found on the website in which DSP technology for third-party independent evaluation agency, the U.S. Berkeley Design Technology Inc. (BDTI), BDTI in the seven world-renowned DSP vendors as of January 2010 to 23 (series) fixed-point DSP processing device, with "the pace of cost per dollar than the" BDTIsimMark2000 / $ for testing, Blackfin BF50x score is 498 points, 23 (series) fixed-point DSP processor that scores the highest.



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ADI issues Blackfin BF50x Processor with 400MHz operating frequency, built-in ADC

ADI issues Blackfin BF50x Processor with 400MHz operating frequency, built-in ADC




ADI Corporation in the United States January 19, 2010 in Beijing issued a series of converged Blackfin digital signal control processor BF50x family. This family of processors operating frequency is 400MHz (dual-MAC), than the current market price of a similar competition processor is only 150MHz to 200MHz operating frequency of 1-fold increase. Is mainly used for power inverter, UPS, power and motion control, and power measurement, flow / level measurement such as smart metering and advanced sensors and so on. But the BF50x series of power parameters were not disclosed.



BF50x processor also incorporates the optional ADI dual-core SAR 12 Wei ADC, the effective resolution of 11.5 (ENOB), as well as the synchronous parallel 4MB flash memory (no external memory). In order to ensure the ADC from the main processor frequency interference, BF50x the package on the use of an independent ADC die. In addition, BF50x processor also incorporates ADC Control Module (ACM), provides the ADC sampling and external synchronization with low overhead accurate method and two three-phase PWM units, mobile memory interface (SDIO, eMMC, CE-ATA) and the CAN control etc..



The reason why ADI released in China BF50x processor family, because the Chinese market in the industrial areas of control and there is a huge demand for power.



According to the U.S. market research agency Stratigy Analytics report, by 2012, the global photovoltaic market will grow 23% of the ground a compound annual growth rate of up to 350 billion U.S. dollars. China's solar cell production will be more than 50% annual growth rate. From the Global Wind Energy Council reports that in the next five years, global installed wind power capacity will double that this year China is expected to become the world's largest wind turbine producer.



Secondly, according to Chinese industry and the Ministry of Information Industry data from 2008 to 2012, China will deploy 300,000 3G base stations, of which China Mobile will be 238 cities across the country to deploy 88,000 a TD-SCDMA base stations.



Thirdly, in the November 5, 2008 the State Council, announced the expansion of domestic demand and promote economic growth, 4 trillion in investment programs, the railway and other major transportation infrastructure construction is about 1.8 trillion yuan.



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Reducing the price of "non-silicon" is the key point of cost saving of photovoltaic power generation

Reducing the price of "non-silicon" is the key point of cost saving of photovoltaic power generation


New Energy Chamber of Commerce at the Fourth China International Summit Forum on the new energy, new energy National Energy Board, Deputy Director Shi Lishan, said that the current cost of solar photovoltaic power generation, non-silicon cost of a slower fall, the industry should be non-silicon cost reduction be done here. On this point, the follow-up countries may be in the solar industry, to encourage the development of policies to be reflected.



Ningxia is currently in production of 4 million kilowatts of large solar power plants, the cost is 2 yuan / kW. And this cost for the promotion of solar photovoltaic power station in terms of, or very high. The most immediate issue is the Internet price, which is currently constraining the domestic photovoltaic industry, the development of a whole new energy the biggest problem. Industry statistics show that China is the world's largest producer of photovoltaic equipment, and accounting for 39% of total production, but 99% of the production are for export, only about 1% for their own use. And China's subsidies for solar energy has just begun. To industry sources, apart from relying on state subsidies and, more importantly, solar photovoltaic panels by improving the technology, reduce costs, so that the cost of solar photovoltaic products as close as possible the traditional coal-fired power electricity price, it may be competitive .



Shi Lishan, however, believes that the current industry reduce the cost of the board hopes to reduce the cost in the battery is very one-sided. He said that the impact of the cost of solar power there are many non-battery technology. According to estimates, in order to install solar panels needed to stand, cables, etc. have already invested close to investment in solar panels, which part of the investment is a rigid quotas, and in recent years, not much down. In order to install solar panels, and the supporting grid and run solar cells have already invested over investment in hydropower construction.



The industry also said he can not only reduce the cost of solar cells, but also reduces the system cost to install solar cells, or PV cost reduction is currently limited space.



Photovoltaic industry to encourage policies



A foreign inverter manufacturer sales representative believes that the current incentive policies for the photovoltaic industry are concentrated in the lower reaches of the use and battery film production, so that domestic producers are also more concentrated in this area.



China in July 2009 announced the launch of the "Golden Sun" project, Ministry of Finance has selected 294 solar projects, total production capacity of 642 megawatts. Under the plan, the Ministry of Finance will be 50% of construction costs, and grid solar power plant to provide subsidies, according to the construction cost of 70% to provide grants to the independent power generation facilities and, where necessary to provide transport cost subvention.



Shi Lishan, after the acceptance of the China Securities newspaper reporters revealed the follow-up state solar industry, to encourage the development of policy may be guided.



The industry believes that the current solar PV technology more constraints embodied in the power inverter, tracking devices and other auxiliary pieces. Only more enterprises to enter these areas, be able to gradually lower the cost of this part.



According to Group Chief Strategy Officer of Yingli Ma Lu, at present the cost of solar PV modules, auxiliary parts is much room for cost reduction. Energy Research Institute researcher Wang Si Cheng also said that photovoltaic project in the recent tender, with the installation of technological advances, frame, inverter and other auxiliary parts costs have declined.



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2010年2月1日星期一

Baoji photovoltaic solar lighting demonstration project

Baoji photovoltaic solar lighting demonstration project




In the city, the administrative center of an open area, one side surface solar panels neatly arranged like a parade of soldiers, they bring sunshine into a steady flow of electricity to illuminate every corner of office building ... ... in the near future, this a scene will appear in front of more people. It is reported that Baoji City is preparing to implement the four solar photovoltaic lighting demonstration project location was fixed at the city administrative center, City People's Park, Shek Kwu Hill Park and the Weihe River Park. After the completion of these demonstration projects will highlight the charm of the green light for new energy resources play a very good leading role.



The implementation of solar photovoltaic lighting demonstration project is Baoji energy industry to accelerate the development of new measures. City workers assigned by the person in charge of any one development of the industry needs to create a good environment for the government, especially in emerging industries. To speed up the development of new energy industries, Baoji City will implement a series of supportive policies.



The new energy for new businesses, will be based on the implementation of large enterprises and enterprise groups to promote the development of the "seven priority policy", that give priority to ensure that the project planning, giving priority to ensuring the construction land, give priority to supporting infrastructure, priority allocation of production factors to give priority to scientific and technological innovation support, give priority to financial support and give priority to financial support.



Support efforts to increase financial resources. The use of the city's science and technology innovation fund, focusing on support for the new Energy and Industrial Technology R & D, demonstration projects, focusing on topics of projects; through financial subsidies, to support the new energy industry demonstration projects and key projects; right to obtain the title of national or provincial level technical center and provincial above the level of science and technology award in recognition of achievements. Award criteria: access to state-level technology center awards the title of two million yuan to obtain the title of provincial-level technology center reward one million yuan.



Actively support the building-integrated photovoltaic technology cities to encourage solar energy applications and building design and construction simultaneously, encourage and support public buildings, large industrial plants and commercial buildings to install solar collectors systems, photovoltaic power generation system and to expand the PV at the urban landscape lighting, etc. applications.



Talent is the core of industrial development. Baoji City will train a number of new energy industries, management and technical personnel; formulate preferential policies to attract new high energy R & D talent in Baoji development; the establishment of Baoji City, New Energy Industry Association, to strengthen exchanges and cooperation to promote new energy technology applications.

Baoji New Energy and Industrial fame

Baoji New Energy and Industrial fame




The development of new energy industry in China has upgraded to a strategic height, and introduced policies to accelerate development. In this new situation, Baoji City, give full play to existing industrial advantages and move faster than others Seizing an opportunity, so that the new energy industry has become a driving rapid economic development, Baoji City, a new engine.



Yet another springboard for business and stronger



January 20, this reporter went to Shaanxi Changling Electronic Technology Co., Ltd. interview. In the company's research and building a roof, I saw a large metal bracket on the laying of solar panels in the sun shine, they will receive solar energy into electrical energy, electricity and longer through the photovoltaic inverter after the DC into a AC, finally access to the grid. This is the first solar power station in Baoji City demonstration projects. According to reports, the project construction of a power of 10 kW, the investment more than 20 million yuan last year, December 29 to formally establish the grid. "In theory, this station can be issued 100 units of electricity a day, the recent cold weather, one day be able to issue a few dozen of electricity. In the near future, this solar power plant will be environmentally friendly and renewable sources of its advantages, into the shopping malls, office buildings and residential buildings. "Changling science and technology, said Chief Engineer Zhao Shiying.



Talking about solar photovoltaic power generation involved in the field of mind, Zhao Shiying said Changling electronic technology is the core of a defense electronics company, over the years insist on technological innovation, aimed at advanced international level, to maintain a sound momentum of development. However, the company is still producing mainly military, civilian production before tens of millions each year. Changling science and technology to do larger and stronger, we must make products for civilian use to do this one up, spotted the direction to find right path, select the right product, and the new energy industry is in line with this business development ideas.



Zhao Shiying analysis, with the shortage of conventional energy resources and people's increasing attention to environmental protection, the development of promising new energy industries. Changling technology has a number of technical staff, a group of applied R & D and production equipment, to enter the field of solar photovoltaic power generation has many natural advantages. To this end, enterprises in the multi-study research, based on scientific research efforts of the organization has developed a photovoltaic power station monitors, and network-based inverter, off-grid inverter and many other varieties, and the inverter R & D to go In the forefront of the country. "It is envisaged by 2013, wind energy, solar and other renewable energy sources will be large-scale promotion. But if the wait until then to intervene, it may be too late. Therefore, we have been involved, to seize the opportunities."



According to reports, this year, Changling Science and Technology will invest 120 million yuan building 200MW photovoltaic grid-connected inverter product line, the project is put into operation its annual output up to 6 billion, is currently the project is tight construction. Recently, they and Beijing signed a framework agreement, to be jointly produce 30MW of high concentrating solar power generation system. The project is a cutting-edge field of solar power high-end technology, prospects and economic benefits was very good. The two sides plan to invest first in 2010, construction of 10MW scale of 100 million yuan, annual output value of 3.1 billion. "By 'Shier Wu' end of the photovoltaic equipment will become the Changling technology very strong economic growth, an annual output value will reach 3.0 billion."



The new energy industry as another springboard for enterprise development, and enterprises in Baoji city, there are many. As early as 2005, Qinchuan machine tool castings market is faced with the downward trend, it will be targeting the wind power industry, and actively develop high-performance, high value-added, cross-casting. In recent years, wind power they produce castings favored by domestic and foreign markets, production value and output value accounts for all the output of two-thirds of casting products. In order to early realization of "tens of billions of Qin Chuan", the last year in May, the Group has in the Wei-Bin Jiang Qin Chuan Tan industrial park under construction "large-scale development and manufacture of precision castings special projects," opened the enterprises to enter the wind power industry in large scale curtain. Wind power industry plans to invest 2.5 billion park, all completed the formation of 6.5 billion a year in sales.



In addition, the Xuzhou Mining Group, Suntech Power Holdings Co., Ltd. decided to join forces in the Baoji High-tech Zone to spend 3.0 billion to build solar photovoltaic industry base; Baoji Petroleum Machinery Co., Ltd., Shaanxi Fiberhome Communications Group, Shaanxi Lingyun Electrical Appliance Co., Ltd., Northwest Machinery Co., Ltd. is also aimed at wind power, solar photovoltaic power generation industry, for enterprise development to create a new growth point. Baoji Titanium Zirconium country's nuclear industry, shares of companies rely on business advantages, to enter the nuclear power industry, investment 2.6 billion in the construction of nuclear-level high-tech zones, Baoji zirconium material production line project, after completion of the project can realize annual sales income of 1.6 billion, the prospects are extremely good.