2009年12月31日星期四

The operating principle of solar street lamp

The operating principle of solar street lamp




During the day, in the light conditions, the solar cell components produce a certain electromotive force, through the formation of the component series-parallel solar cell matrix, making square voltage system input voltage demands. And through the charge and discharge controller to recharge batteries, will be converted from light energy stored up. The evening, battery for the inverter to provide input through the inverter the role of the direct current into alternating current, transmission to the distribution cabinets, distribution cabinets from the role of switching power supply. The discharge of batteries controlled by a controller to ensure the normal use of battery. PV power plant system should also be limited load protection and lightning protection devices to protect the system equipment from lightning overload operation and to maintain the safe use of system equipment.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Unqualified MP3, MP4

Unqualified MP3, MP4




Trade and Industry Bureau, Guangdong Province, the province has announced sales of 21 sales organizations MP3, MP4 of the sampling results in a sample of 50 batches, 32 batches of unqualified, unqualified mainly concentrated in the power adapter easily blown off course on the circuit to wear, easy to lead the user an electric shock, or the battery burst into flames. Experts advise: Buy MP3, MP4 we should choose USB direct charging, less use power adapter.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月30日星期三

Electric automobile industry development prospects

Electric automobile industry development prospects




Electronic control system includes electronic control modules, inverter, power management systems. Although there are many domestic appliances business, but for applications in electric vehicles on the electric control system are the lack of technology and experience.



Investment opportunities in electric cars is not limited to vehicle and parts, electric vehicles need to recharge life, charging stations and electric power supply must have gone to security. And in the future to service the charging stations will be diversified and intelligent direction, charging stations were charging not only provides a simple function, and can provide customers, such as battery monitoring, real-time vehicle detection, additional functionality, so the infrastructure has a large number of opportunities. On the one hand, large-scale construction of power lines are coupled battery charging station, AC / tributaries, inverter, circuit protection devices, power lines and other fittings have a large demand. At the same time in the future of intelligent charger allows users to stop charging when the charge to tell the user how long it takes, to spend more time could be filled with a certain degree of power; when the charge is full (after the charge to the user the default rate), can automatically notify the user. Not required to charge the user on duty. Users can set the charging rate; also offers a variety of payment methods, allowing users the flexibility to self-pay, no labor charges in order to save time. This charging station of the Radio Frequency Identification Technology (RFID), smart card (smart card), smart meters (smart meter), LCD screen will have a huge demand.



All in all, the electric automobile industry different from the traditional car industry, involving chemical, energy, information technology and other industries. Only full use and coordination involved in the industry in order to make electric car industry has a sustainable development.



Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Speed up the "Golden Sun" progress in the implementation

Speed up the "Golden Sun" progress in the implementation


Recently, the Ministry of Finance, Science and Technology, National Energy Board jointly released the "good" Golden Sun "demonstration project implementation of the notice" to speed up the implementation of the "Golden Sun" demonstration project. This indicates that the photovoltaic industry, the attitude of the government care to promote the development of PV market determination.

According to Finance Ministry sources, demonstration projects, capacity of 642 MW, in 2008 China's solar energy capacity is 145 megawatts of 4.4-fold, demonstration projects promoting photovoltaic industry chain is bound to drive the huge demand, the domestic photovoltaic market, revenue recognition is expected to in 2010 and 2011 to achieve explosive growth.

Together with the "notice" with the release of the "golden sun, the basic requirements Demonstration Project," the procurement of key components have made it clear that the project will help standardize the bidding process, so that an open transparent bidding, so that a truly golden sun model demonstration project effect. "Notice" provisions of crystalline silicon components of the price-cap 14 per hour / peak watt, amorphous silicon thin-film components of the price-cap 9 yuan / peak watt, grid-connected inverter in the single-phase inverter price ceiling 5 yuan / watts, three-phase inverter price ceiling 3 yuan / watt, independent inverter price ceiling is 3 yuan / watt.

According to estimates, to 70 U.S. dollars / kg of polysilicon unit price calculation, the total component cost of 1.54 U.S. dollars / Wp, equivalent to 10.47 yuan / Wp, with price-cap 14 yuan / Wp basis, gross margins reach 25.2%, for components manufacturers, 14 yuan / Wp unit price is acceptable



Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月29日星期二

Investing in production in the U.S. SMA Inverter

Investing in production in the U.S. SMA Inverter
Plant construction SMA Group has signed an agreement, according to SMA, said it was "the nation's largest photovoltaic inverter manufacturing plant." SMA has been with the local land use and building long-term agreement was signed, in addition, for the local factory location, so he began negotiations.
SMA Group will be in Denver (Colorado) Construction of the first German production plant outside the inverter.
The plant annual capacity is approximately 1GW, scheduled for mid-2010 production, estimated investment of about 15 million U.S. dollars. The United States SMA new plant will produce new products to supply the North American market, product line for the Sunny Boy, Sunny Central and Sunny Island.
Plant construction SMA Group has signed an agreement, according to SMA, said it was "the nation's largest photovoltaic inverter manufacturing plant." SMA has been with the local land use and building long-term agreement was signed, in addition, for the local factory location, so he began negotiations.
"Medium-term view, we expect the U.S. market will become the world's largest solar market." SMA Solar Technology, Inc. Chief Executive Officer Günther Cramer said, "the construction of the new Denver facility, SMA will reduce the transportation and temporary storage costs, and currency exchange rate risk . "
Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/ ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Investing in production in the U.S. SMA Inverter

Investing in production in the U.S. SMA Inverter


Plant construction SMA Group has signed an agreement, according to SMA, said it was "the nation's largest photovoltaic inverter manufacturing plant." SMA has been with the local land use and building long-term agreement was signed, in addition, for the local factory location, so he began negotiations.

SMA Group will be in Denver (Colorado) Construction of the first German production plant outside the inverter.

The plant annual capacity is approximately 1GW, scheduled for mid-2010 production, estimated investment of about 15 million U.S. dollars. The United States SMA new plant will produce new products to supply the North American market, product line for the Sunny Boy, Sunny Central and Sunny Island.

Plant construction SMA Group has signed an agreement, according to SMA, said it was "the nation's largest photovoltaic inverter manufacturing plant." SMA has been with the local land use and building long-term agreement was signed, in addition, for the local factory location, so he began negotiations.

"Medium-term view, we expect the U.S. market will become the world's largest solar market." SMA Solar Technology, Inc. Chief Executive Officer Günther Cramer said, "the construction of the new Denver facility, SMA will reduce the transportation and temporary storage costs, and currency exchange rate risk . "

Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/ ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Inverter in the input rectifier

Inverter in the input rectifier


The main general-purpose inverter circuits generally AC - Straight - AC conversion circuit, when the inverter from the power supply when it introduces the work of non-sinusoidal current. This is because the inverter input rectifiers in the power supply AC voltage and current is converted to DC voltage and current generated.

Input Rectifiers: From the three-phase power supply current of each phase first introduced. The introduction of non-sinusoidal current, and not as a standard AC sine wave, as the conversion process but in the rectifier distortion generated. Distortion means that the supply current waveform contains harmonics due to distortion of the waveform can be decomposed into a set of sinusoidal components, both people are talking about harmonics. As the power supply is a standard symmetrical three-phase power, while the rectifier is a part of the open-loop is not controllable, so the harmonics of the "second" number is certain, so harmonics generated by rectifier part of the very few.

The output inverter: DC flowing through the filter capacitor filter and high-power IGBT inverter transistor switching elements for the exchange of variable frequency voltage. In the inverter output circuit, the output current is modulated by the PWM carrier signal pulse shape, high-power inverter for the GTR components, and its PWM carrier frequency of 2 ~ 3kHz, while the IGBT inverter high-power components, the maximum PWM carrier frequency can be up to 15kHz. Similarly, the output loop current of sine wave can be decomposed into only with the fundamental and other harmonics, the main harmonic frequency for the first time (fundamental, 50Hz), the fifth harmonic (250Hz) the seventh harmonic wave (350Hz), the 11th harmonic (550Hz), the 13th harmonic (650Hz). We are working mechanism from the inverter can be seen in most of the inverter harmonics and interference are generated in the inverter, the high-order harmonic current of load there is a direct interference (when the role of the motor when the motor performance of fever, sounds ugly. when the role of the analog meter, the meter pointer and readings bounce, these phenomena are subject to interference phenomena), the other high-order harmonic currents through the cable to the space radiation can interfere with nearby electrical equipment .

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月26日星期六

Another approach of web site promotion

Another approach of web site promotion


Of course, issued a blog post is just one aspect of web site promotion . During the process of browsing various sites, I have also found another way out, that is making comments on the hot articles. Take problogger.com for example, it is a paid blog sites. There are many excellent original articles on this web site, and we can have comments on this articles . when leaving comments, there sometimes need to fill in the URL bar, then you can fill in our website -- http://www.szpowerinverter.com/ . After the comments are published, the viewer may click the comment on the person's name, and then it will automatically be linked to our site, bringing traffic to our website. Besides, the contents of comment should related to the article as closely as possible. rather than a pure copy paste "Shenzhen MaoRun Electric Co., Ltd. is specialized in manufacturing power inverter,". Because some comments of articles should be piblished after authors’s review, and the pure advertising, of course, will be deleted.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Grid-connected photovoltaic power inverter standard

Grid-connected photovoltaic power inverter standard


In fact, grid-connected photovoltaic power inverter standards is very important, but it has not attracted enough attention. China's PV standard system is not perfect, there has been no published national grid inverter on national standards and industry standards, product certification, lack of technical basis, this is my country and grid-connected inverter product quality evaluation and enhancement of skills, and even China's grid-connected photovoltaic power generation market, the development of adverse effects.

And grid-connected photovoltaic power generation and grid-connected photovoltaic inverter is a power generation system is one of the important parts, the main role is to DC into AC power supply can be used as a load converter, which is the inverse transform function of the rectifier devices. As the issue of grid-connected photovoltaic systems is that DC, if you want to share the load power, we need to equipped with inverter. Inverter through the semiconductor power switch turn-on and turn-off effect can be transformed into alternating current to direct current, is the inverse transformation process of rectification.

Grid-connected photovoltaic power inverter will directly affect the quality of the local power grid security, and the user's personal and property safety. Therefore, the state in the "Golden Sun Demonstration Project" in the grid system uses the request and a key component to go through domestic product certification.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月25日星期五

PV grid-connected inverter SG3KTL / SG4KTL available in January 2010

PV grid-connected inverter SG3KTL / SG4KTL available in January 2010


Overview:

SG3KTL / 4KTL transformer-free design, a higher conversion efficiency, compact appearance, small size and light weight. Port using inline waterproof terminals, wiring convenient, safe and reliable. Applies to household-based small-scale photovoltaic power plants can also be group of strings to use.

Features:

• allows multiple inverter parallel combination of running, simplifying power plant design

• high-quality aluminum design, small size, light weight, easy to install

• a variety of communication interfaces to choose from, can easily monitor the realization of host computer

• Outdoor design (IP54) to adapt to the harsh use of the environment

• user-friendly interface, by pressing a button to set the various operating parameters

• multi-lingual LCD display features are free to set the

• Maximum Power Point Tracking (MPPT) efficiency of "99.9%

• complete protection, greater reliability of the system

• High conversion efficiency up to 97.3%

• Wide DC input voltage range

• to adapt to high altitude applications ( "6000 meters)

• Dip-style waterproof terminal

• EU CE Certification

Communication:

• RS485 / Ethernet / GPRS Communication Interface

• Computer Monitoring Software

Safety:

• complete protection function: over-voltage protection, short circuit protection, isolated island protection, thermal protection, overload protection.

Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/ ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Hefei Sunlight Power Supply PV inverter obtains the U.S. ETL Certification

Hefei Sunlight Power Supply PV inverter obtains the U.S. ETL Certification

Recently, Hefei Sunlight Power Supply Co., a large-scale production of photovoltaic grid-connected inverter successfully passed the United States, ETL certification, this is the first of China's PV inverter industry, through the certification business.

The sun power to obtain ETL certification of its products at the same time fully consistent with the United States and Canada relating to the strict standards of inspection and testing, free circulation in the North American market. ETL certified products to achieve that Hefei Sunlight Power Supply Co., in line with the corresponding North American safety standards and the adoption of the U.S. National Recognized Testing Laboratory (NRTL) test. ETL certification is based on product certification issued by North American standards, but also at the same time issued in accordance with Canadian National Standard Test composite certification mark. Certified
Also on behalf of the manufacturers agreed to receive a strict regular inspections to ensure product quality and consistency.

This is also the same time, the sun Power Sun Access series of photovoltaic products obtained following the TÜV, CE, China's "Golden Sun" certification after another international authority to obtain certification, demonstrating their growing technical strength and a strong sense of quality goods, which will surely help to accelerate the pace of opening up the North American market, continuously improve the sun products in the international market share and reputation.

Shenzhen MaoRun Electric Co., LTD.(http://www.spowerinverter.com/ ) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月24日星期四

MaoRun News----Merry Christmas to all

(MaoRun News) Here's a Merry Christmas to all the old and new clients and staff from Shenzhen MaoRun Electric Co., LTD.. On this merry Christmas, my collegue Mr. Liao made a very romantic music card on our website. So sweet, and I like it. I can’t help to share it with all of you. The new year is just around the corner, which brings me new hope and new beginning. I wish all my friends make a better progress in the new year ahead, and my family healthy and well-being. And also, wish my sweet honey get a great job in the city I live. We will love each other even more and get the greatest happiness.


Merry Christmas and happy New Year to ALL the people who read my article!

Merry Christmas!

Merry Christmas!
This article is quoted from http://www.szpowerinverter.com/shownews.asp?id=33

To all the new and old clients and staff,
On the occasion of Christmas and New Year's Day, Shenzhen MaoRun Electric Co., Ltd. wishes all of you a happy holiday and good luck!

Click  http://www.szpowerinverter.com/MerryChristmas/ to enjoy the greeting from MaoRun.

2009年12月23日星期三

The choice of main circuit power device of Inverter

The choice of main circuit power device of Inverter

Inverter main power component selection is essential components currently in use have more power Darlington Power Transistor (BJT), power MOSFET (MOS-FET), insulated gate transistor (IGBT) and turn-off thyristor (GTO) and so on, in a small volume low-pressure system, a device used frequently in the MOSFET, because the MOSFET has low on-state voltage drop and higher switching frequency, in the high-voltage large-capacity systems generally are used IGBT Module This is because the MOSFET as the voltage increases its on-state resistance also will be increased, while the IGBT in the capacity of the system account for a large advantage, and in the large-capacity (100kVA and above) system, generally used as a GTO power components.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Inverter control circuit

Inverter control circuit


General inverter main circuit control circuit are needed to achieve, mainly two kinds of square and sine wave control mode. Square-wave output of the inverter power circuit is simple, low cost, but low efficiency, large harmonic components. With the development of microelectronics technology, the development trend of inverter is sine wave output, a PWM function of the microprocessor has also come out, so the output sine wave inverter technology has matured.

1. Square-wave output inverter current multi-pulse-width modulation integrated circuit. Practice has proved that, using SG3525 IC, and using power MOSFET as a switching power components, to achieve high cost performance inverter, due to SG3525 has a direct drive power MOSFET capacity and an internal reference source and operational amplifier and undervoltage protection, so the external circuit is very simple.

2. Sine wave output inverter control IC, sine wave output inverter, the control circuit can use microprocessor-controlled, such as INTEL produced 80C196MC, Motorola produced MP16, as well as MI-CROCHIP produced PIC16C73, etc. These microcontrollers also have a multi-channel PWM generator, and can be set up on the arm on the bridge between the dead-time, using INTEL's 80C196MC sine wave output of the circuit to achieve, 80C196MC complete sine wave signals occur, and to detect AC output voltage to achieve regulation.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give me a call at +86-755-88823234-811, or mail to sale38@0102.cn . We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月22日星期二

High-power electric locomotive inverter cabinet put into production in November in Zhuzhou

High-power electric locomotive inverter cabinet put into production in November in Zhuzhou



Recently, Hunan Zhuzhou Lince Group Co., Ltd. export products in the steel structure workshop was held the world's largest six-axis power of 9600 kilowatts of AC drive electric locomotive inverter enclosure in the first piece off the assembly line ceremony also marked the successful localization of the components .



It is understood that this type of inverter enclosure is the world's largest six-axis power of 9600 kilowatts of AC drive electric locomotives, one of the important parts, mainly for the production of such locomotives CSR Zhuzhou Electric Locomotive Co., Ltd., designed by the German Siemens, Zhuzhou Siemens Traction Equipment Ltd., to undertake, Zhuzhou Lince Group Co., Ltd. production. In the first piece before the product off the assembly line, "Zhuzhou Lian-cheng" trial of the two products by Siemens Traction Equipment Ltd., Zhuzhou, examined by an expert, that the company produced the inverter enclosure fully meet the design requirements.



The inverter enclosure smooth off the assembly line, marking the "Zhuzhou Lian-cheng" large screen cabinet manufacturing process level has been a major upgrade to the company to create new economic growth point. At present, the company signed the first inverter enclosure 180 has entered mass production stage.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

"Authentication technology standard management approach" to resolve trade problems

"Authentication technology standard management approach" to resolve trade problems




In August 2009, Hefei Sunlight Solar Power Co., Ltd., Beijing Corona, China Electric Power Research Institute and other units, from Beijing Jianheng Certification Center, led the drafting of common technical specifications of the certification CGC/GF001: 2009 "400V following grid-ray volt inverter technology-specific conditions and test methods, "according to CNCA" authentication technology standard management approach "and" authentication technology standard management approach to the implementation details "requirement, and successfully in the National Certification and Accreditation Administration of the record, the record number is : CNCA/CTS0004-2009. In the grid-connected photovoltaic inverter national standard, industry-standard missing cases, the release of the certification specifications for China to implement grid-connected photovoltaic inverter to provide the healthy development of a scientific and rational technical basis.



The main technical specifications of the certification requirements include: security and performance of two parts. Some refer to the relevant safety standards at home and abroad, including electromagnetic compatibility and insulation withstand voltage, in which electromagnetic compatibility including the voltage fluctuation and flicker, launch requirements, immunity; insulation withstand voltage requirements in accordance with China's power sector development, including the insulation resistance and insulation strength.



Performance of some of China's power grid in accordance with the requirements of the development, including: power quality and protection. Among them, power quality testing project inverter efficiency, and net current harmonics, power factor, operating voltage, operating frequency, dc component, noise; the protection of functional testing project power fault protection, anti-anti-discharge protection, anti-polarity access protection, overload protection, anti-island test.

Overall, the technical specification is in line with China's national conditions, with international advanced level of technical standards.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月21日星期一

Jiangsu Esso TL series of new energy photovoltaic inverters have been VDE-GS certified

Jiangsu Esso TL series of new energy photovoltaic inverters have been VDE-GS certified




PV grid-connected inverter certified by VDE-GS, is the first of China's renewable energy industry through this certification business.



VDE-GS certification is a new energy following the VDE certification Esso after another international authority to obtain certification, enhanced Esso new energy in product quality, safety, comply with legal requirements, etc. of confidence will help to improve market competitiveness, to to ensure the safety of consumer products.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Wuhan Railway Station project is undertaken by the sun power solar grid-connected inverter

Wuhan Railway Station project is undertaken by the sun power solar grid-connected inverter




After Hangzhou 2MW project successfully incorporate into the energy and environment industrial park, sun power has also won the favor of investors, once again the successful bidder for the country's largest train station rooftop solar photovoltaic power generation project - a new railway station in Wuhan photovoltaic power generation project, and provide all the grid-connected inverter. It is reported that this project is the China Energy Conservation Investment Corporation investment in China's largest train station rooftop solar photovoltaic power generation project.



Wuhan Railway Station is the first in a forest in the train station, but also the world's longest passenger line train station, railway stations, wave-like shape for the nine double eaves and roof, like 9 flying crane, "9" express hub of nine provinces, Central for the arched roof of the hall to symbolize the rise of the middle. Its "Millennium Crane to go home" shape highlights Hubei character, and solar photovoltaic project is built in the nine-wing shed above.



Project construction scale of 2.2 MW, annual generation of about 20 million degrees, the solar photovoltaic energy provided by the railway station will be mainly used in indoor lighting and air conditioning. The project is expected on December 20 this year, built and put into use.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月19日星期六

The new Express Module Host Bus Adapter Listing

The new Express Module Host Bus Adapter Listing




Recently, Emulex Corporation (NYSE: ELX) announced the availability of set 8Gb / s Fiber Channel and 1Gb / s Ethernet in one ExpressModule ™ host bus adapter (HBA). ExpressModuleHBA targeted SunBlade ™ 6000 modular system that can be virtualized servers, large or mixed-type storage area network (SAN) as well as local area network (LAN) environment, providing higher performance, excellent flexibility and a higher insertion slot utilization.



Emulex's chief marketing officer and senior vice president of business development SteveDaheb said: "SunBlade6000 modular system with excellent scalability and high performance, and Emulex's ExpressModule HBA integration can improve the transfer rate, more efficient use of CPU, for I / O-intensive applications and server virtualization to provide support. We are committed to a wide range of connectivity solutions to provide customers with enterprise-class scalability, excellent flexibility and comprehensive virtualization capabilities. This release further demonstrates potent combination of Emulex and Sun's advantage. "



Emulex multi-protocol ExpressModuleHBA use Sun Modular architecture, support hot-plug feature of high-density SAN extension to avoid the blade server that is running the installation, re-configuration, and the uninstall process, when any interruption. This will provide customers a flexible SAN connectivity solutions, to achieve server virtualization, blade servers and large-scale environments fully exploited. In addition, EmulexExpressModuleHBA as a peripheral to connect to each blade server, can reduce the heat and power requirements on the impact of blade servers.



SunMicrosystems, senior director of storage marketing JasonSchaffer, said: "Customers have been seeking a higher capacity and processing power, but also the hope of finding lower energy consumption, cooling and space requirements of an effective manner. Revolutionary SunBlade 6000 modular system with a flexible Emulex ExpressModule high-performance LAN and SAN connectivity solutions that not only meet the requirements of customers, but also to deliver more value. Sun Blade 6000 Series is a consolidation and virtualization, a variety of applications (from the network to the blade server background) is the ideal choice. We have been In the unremitting efforts, strive to offer our customers the most advanced enterprise-class solutions to meet the evolving data center needs. "



Designed specifically for SunBlade6000 system, Emulex is compatible with standard multi-protocol ExpressModuleHBA to Emulex 4Gb / s and 8Gb / s Fiber Channel LightPulse ® HBA, with Linux, Solaris ™ operating system, VMware, and Windows platforms to achieve full interoperability. Integrates a dual-channel 8Gb / s Fiber Channel and dual-port 1Gb / s Ethernet Emulex ExpressModule HBA (Sun model SG-XPCIEFCGBE-E8-Z) in the Sun and its authorized dealers for sale.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

The progress of photovoltaic industry "Golden Sun" need to be accelerated

The progress of photovoltaic industry "Golden Sun" need to be accelerated




Recently, the Ministry of Finance, Science and Technology, National Energy Board in order to accelerate the implementation of the "Golden Sun" demonstration project, jointly issued "on doing the" Golden Sun "demonstration project of the implementation of the notification." The notification shows the government's attitude toward care of the photovoltaic industry to promote the development of PV market determination.



According to Finance Ministry sources, demonstration projects, capacity of 642 MW, in 2008 China's solar energy capacity is 145 megawatts of 4.4-fold, demonstration projects promoting photovoltaic industry chain is bound to drive the huge demand, the domestic photovoltaic market, revenue recognition is expected to in 2010 and 2011 to achieve explosive growth.



Together with the "notice" with the release of the "golden sun, the basic requirements Demonstration Project," the procurement of key components have made it clear that this will help standardize the project bidding process, so that an open transparent bidding, so that the real golden sun Demonstration Project with a demonstration effect. "Notice" provisions of crystalline silicon components of the price-cap 14 per hour / peak watt, amorphous silicon thin-film components of the price-cap 9 yuan / peak watt, grid-connected inverter in the single-phase inverter price ceiling 5 yuan / watts, three-phase inverter price ceiling 3 yuan / watt, independent inverter price ceiling is 3 yuan / watt.



According to our calculations, to 70 U.S. dollars / kg of polysilicon unit price calculation, the total component cost of 1.54 U.S. dollars / Wp, equivalent to 10.47 yuan / Wp, with price-cap 14 yuan / Wp basis, gross margins reach 25.2%, for component manufacturers, 14 yuan / Wp unit price is acceptable.



"Notice" will enhance confidence in the market for photovoltaic industry, bringing to the plate photovoltaic transactional investment opportunities. We recommend that investors can focus the integration of PV companies Tianwei change security (600550SH), the leading domestic super-white glass, Jin Jing Science and Technology (600586SH), with a photovoltaic construction business Tellhow (600590SH), production of lead-acid batteries Windsurfing Stock (600482SH), with a flexible transmission technology, Hidenobu shares (002123SZ), as well as the parent has access to the national grid photovoltaic grid-country R & D platform NARI (600406SH).



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月18日星期五

The integration of GaN transistors on a silicon substrate

The integration of GaN transistors on a silicon substrate




The Society published Panasonic inverter IC, is integrated on a silicon substrate 6 by the GaN type semiconductor made of NC (NormallyOff)-type field-effect transistor (FET) devices made of. When the source drain voltage is positive voltage, this GaN field-effect transistors as the transistor, a negative voltage, then act as a diode. Therefore, the inverter circuit assembly without the use of fast recovery diode (FastRecoveryDiode), only the integration of transistors on a chip can be. In other words, became a "single-chip inverter" (Figure 3). Since the integrated transistors for the horizontal-type FET, so the wiring between transistors only on the surface of bottom plate can be, it also played a role in promoting integration.



If we consider the use of motor-driven like the situation, then the monomer components, as well as between the components necessary to ensure that a high pressure. Of these, like the case of this IC, due to component relying on the past, so there is pressure drop between components at risk. Panasonic inverter IC between the pressure in order to ensure that the components in the transistor between the injection of iron (Fe) ions to form insulating areas (Figure 4). As a result, components of the voltage between 900V obtained. The company's Institute released statistics indicate that the carbon (C) ions, and boron (B) ions to form insulation zone, compared with more thermal stability of iron ions (Figure 5). In addition, the transistor monomer pressure to ensure that reached 700V. The company said that as laid in the circuit is used to type GaN semiconductor layer and buffer layer between the silicon substrate thicker than before, and therefore achieved the voltage 700V. GaN transistor on-resistance of 2.0mΩcm2.



Inverter IC chip size of 2.5mm × 2.7mm. The integration of the transistor gate width of 25mm. Silicon substrate using 150mm (6 inch) wafers by MOCVD devices, crystalline buffer layer is generated, i-GaN layer, i -AlGaN layer as well as the gate of the p-AlGaN layer, GaN type semiconductor layer, and in this form transistor. Thesis, said multi-layer structure through the use of a buffer layer, has been free from cracks (Crack) GaN-type semiconductor layer.

The result was the development of the Japanese New Energy and Industrial Technology Development Organization (NEDO) of the joint research project in progress.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Panasonic introduced six GaN transistors integrated single-chip inverter

Panasonic introduced six GaN transistors integrated single-chip inverter




Matsushita has developed a class by using GaN semiconductor transistor inverter IC, and in semiconductor manufacturing technology related to the International Society "2009 IEEEInternational Electron Devices Meeting (IEDM2009)" at being released. Papers said that this inverter IC can be used to drive motors. Inverter IC features excellent inverter conversion loss of 4.8%, and adoption of IGBT inverter circuit in the past, the conversion loss of 8.3% compared to a loss of a decrease of about 42% (20W output power pm).



With its high efficiency, and can be driven at a high temperature characteristics of the type used like GaN and SiC wide band gap (Wide BandGap) semiconductor power devices more and more attention. Earlier in the transistor and Schottky barrier diode (SBD) of the type of components on the level of development, is now integrated in the field seems to have come of age. Makes the transistors closer together between the integrated and therefore can be simply a shorter route, therefore, the transistor components embedded in the end with the board wire connections between components, when compared to reduce the parasitic inductance. Paper said, and IGBT power devices such as silicon-class compared to, GaN type device not only has a low on-resistance characteristics, but also through an integrated, after reducing parasitic inductance, but also to produce more high-speed switches.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月17日星期四

Solar power inverter technology exchange was held in Beijing

Solar power inverter technology exchange was held in Beijing




Brief Contents: December 4, the U.S. Advanced Energy (AE) Company and Shanghai SVA Electric (Group) Co., Ltd. held Solar Inverter technology exchange in Beijing. National Energy Board energy conservation and technology equipment, Secretary Li Ye attended the meeting and delivered a speech, China's top five power generation groups in charge of new energy business-related persons attended the meeting.



December 4, the U.S. Advanced Energy (AE) Company and Shanghai SVA Electric (Group) Co., Ltd. was held in Beijing Solar Inverter technology exchange. National Energy Board energy conservation and technology equipment, Secretary Li Ye attended the meeting and delivered a speech, China's top five power generation groups in charge of new energy business-related persons attended the meeting.



Li Ye said the strong-strong alliance the two companies will promote China's solar photovoltaic industry in technological advancement. Radio Electric Company, together with AE's customers in China to provide solar photovoltaic system solutions, will be sales, production, and so all-round cooperation and jointly develop the Chinese PV market and provide users with efficient and reliable from the solar panels to the Public access to the total solar power grid as a whole solution.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Energy revolution to provide new opportunities for the microelectronics industry,

Energy revolution to provide new opportunities for the microelectronics industry,




In the past 10 years, China's GDP and energy consumption essentially the same percentage increase. China's GDP to catch up with the United States, if you do not follow a low-power development path, the future is unthinkable. Only supported by new technologies and not to consume resources, characterized by advanced manufacturing is the basis for enriching the people. Microelectronics revolution in the energy industry will play an important role.



Energy issues are important for China and the world topics. Over the past 30 years, China's rapid economic growth in 30 years, but also the fast-growing energy consumption 30 years. Energy shortages, climate warming and many other issues of economic and social sustainable development will be adversely affected. With integrated circuit chip as the core of the microelectronics revolution in the energy industry will play an important role.



We have already seen the importance of integrated circuits to achieve low power consumption, then the application of microelectronics technology to reduce power consumption for the whole of society will be what kind of contribute? IC smart grid application is the micro-electronics technology for energy-saving society as a whole to contribute to an example.



According to statistics, the world's total power generation capacity within the grid consumes about 40%. According to data provided by the U.S. Department of Energy, if the U.S. power grid efficiency 5%, the savings to reduce the energy equivalent of 53 million cars produced carbon dioxide emissions.



The building of smart grid is to improve the efficient and effective means of power transmission, while the power of intelligent integrated circuit made of a higher demand. Smart grid systems to be able to sense overload and can allocate the power to prevent a system failure or to minimize the impact of failure. A smart grid is characterized by the use of digital technology, including the use of intelligent power consumption meter testing, through the network of sensors and computer system control burst generators, according to consumer demand, production of electrical energy, thereby enhancing transmission efficiency.



Another feature of smart grid is to allow distributed alternative energy (solar, wind, biomass, etc.) into the grid. According to the U.S. Department of Energy predicts that by 2030, wind energy will provide 20% of U.S. electricity demand, which also integrated circuits and semiconductor power devices to provide a market opportunity. The formation of wind power is unstable alternating current rectifier device will need to convert it to DC, then convert the inverter AC power grid can be accepted after the delivery to the power grid to go.



The formation of the solar cell power generation DC, the same has to go through before it can convert the inverter grid. Both the rectifier or the inverter, the core of all power semiconductor devices. The distributed energy in the input grid in the process of measurement will have to rely on integrated circuits.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月15日星期二

Inverter everyday use

Inverter everyday use


It works similar to the switching power supply, of course, you can also imagine a transformer device, according to a scientific principle is that his work

Through a shock-chip, or a particular circuit, control signal output shocks, such as the output 50HZ signal, and then the signal through the amplification, promoting MOS tube [FET or transistor gate control] constantly switch, so that after the DC input, through the MOS tube switch moves to form the exchange of certain features, a revised amendment to the circuit, we can get a similar kind of sine wave AC power line, and then sent to a transformer, the transformer is the power frequency transformer, he is a 220V to 24V transformer , that is, input 220V, then the output is 24V, input 24V output at 220V, in fact the general 24V transformer.

Then transformer output, the output and then sent to the regulator circuit, protection circuit, to give the load to use another one point, we will when the inverter is a transformer of view, and transformers is not to say who is current big event, the transformer is to look at capacity, namely, voltammeter [the product of volts and amps, voltage and current of the product], for example 220V 5A input transformer, if we do not take into account wear and tear, you can output 24V xA: 220 * 5 = 24 * x, therefore, left and right product is the same, but the actual application should be counted into the loss, so enter the desired slightly larger than the output.

Therefore, on both sides of the power transformer [W] or that the capacity of [VA] value should be close to the same. Not as you say.

Car inverter is usually obtained by 220V electricity is 220V 50HZ, high-end point is the sine wave, square wave is generally cheaper.

The kind of sine wave, and then use the electric outlet, is the same, while the square actually can also be used, except with the fans and so if there are electrical equipment, there will be some noise, the reason for using a square wave, it is because This modulation is relatively low cost.

General, this car inverter, power of 500 watts maximum, however, air-conditioning is generally more than 700 watts, but also, do you really want to loading on the domestic air-conditioning? ? ? Car air-conditioning, including those coaches are built so that the engine direct drive compressor, not electricity, and if more than the middle of a power conversion process, loss is even greater. And not in a good equipment, you might as car air-conditioning.

Then notebook, TV, CD and the like, as long as he's rated power to use, no problem, but should be noted he was then on the car battery, even though he usually 11V power on the automatic protection to prevent voltage is too low result in car can not start, but it is still not suitable for the engine is not running the case of use, so if using relatively large load, it is recommended to start the engine. Road charge their cell phones if it is no problem.

Electric vehicles, there is one called the DC-DC module, he also called the DC converter, the module input 48V, output 12V, then you just buy a car 12V input inverter can be used

Of course, if you can buy a 48V input inverter better, but expected to be difficult to buy In addition, this module can only provide general 5A current, at most 10A, but also what lights to use, so it is easy to overload, suggested, if possible, to buy a DC converter, the converter will give you that special inverter power supply, and then if the DC converter can only provide 5A, then the inverter input should be less than 5A, or may be damaged That module, of course, there are some DC converter current is great, if the repair is not a place, can go to some electrical repair shops, or ask them to give you into a high-current, or multiple-DC converter in parallel can also be

In short, do not let him overload.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-29977792. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Photovoltaic Inverter

Photovoltaic Inverter

Esso new energy TL Series photovoltaic grid-connected inverter TL5400/TL4600/TL3200/TL2100 authority through the German VDE laboratory testing, and obtained VDE certification, is the first company certified by VDE.

New Energy Co., Ltd., Jiangsu Esso independent research and development production of TL series of single-phase photovoltaic grid-connected inverter successfully passed VDE-GS product certification, is the first of China's renewable energy industry through this certification business.

VDE-GS certification is a new energy following the VDE certification Esso after another international authority to obtain certification, enhanced Esso new energy in product quality, safety, comply with legal requirements, etc. of confidence will help to improve market competitiveness, to to ensure the safety of consumer products.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-29977792. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月14日星期一

Kyocera solar power system donated Gansu

Kyocera solar power system donated Gansu




In 1985, Kyocera Corporation of Japan has donated solar power systems in Gansu Province. According to November 18 this year, held in Beijing, "2009 'Golden Sun' the world's photovoltaic industry summit" on the published information, the system is put into use for nearly 25 years, while undergoing a relocation, replacement batteries, multiple maintenance inverter and so changed, and today is still the normal operation of power generation. The publication of this data, once again proved Kyocera Corporation of Japan in the field of solar cell industry leading position.



In October 1985, Kyocera Corporation of Japan to the Yuzhong County, Gansu Province, Lanzhou City, Township, donated the garden 10kW of solar power inverter generation system. Garden village is located 2,600 meters above sea level the non-supply areas, where the annual sunshine time of up to 3,000 hours, very suitable for the use of solar power generation system.



In the November 18, at the "2009 'Golden Sun' the world's photovoltaic industry summit", the Gansu Natural Energy Research Institute, assistant senior engineer Li Shimin, said: "The solar system is put into use in China, and is still the earliest In the running of solar power generation systems in the world. through the solar battery module of the system and its peripheral equipment maintenance and long-term monitoring, access to an extremely valuable experience and data. these experiences and data, not only a new domestic energy industry, and even the world's photovoltaic solar cell industry and the development of applied technology will have a positive impact. "

Japan's Kyocera Corporation since 1975 to start solar cell business, has been insisted that "the world to bring the sun's grace" as the idea, in the relevant business has undergone considerable development. 80 years from the last century began, Japan Kyocera Corporation of Japan participated in the government-sponsored ODA (Official Development Assistance) project, by way of donation of solar cell devices, and actively assist developing countries in infrastructure construction, in order to promote the solar cells in the world spread around the outstanding contributions made.



On the other hand, in order to vigorously popularize the application of solar cells to promote basic research and experimental study of the development of Kyocera Corporation of Japan as early as August 1984, on the Sakura City, Chiba Prefecture, Japan built a large-scale exhibition hall features Solar Energy Center. This year, the Center welcomed the establishment of the 25th anniversary commemoration of the day. Solar Energy Center in the south of the main hall, there is a station set up at the beginning of the output power of 43kW to install solar cells is still connected to the device with the museum, in 25 years, never ceased to generate electricity. The equipment and well in China's Gansu Province, the systems, as long-term solar power system for everyday life, has become rare in the world a valuable example.



Of infrastructure and buildings as an integral part of the solar cells are available for people to long-term use products. In the future, Japan's Kyocera Corporation will continue to improve the quality and cost aspects, and strive for more people to provide satisfactory products.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

PV inverter market is growing strong

PV inverter market is growing strong

Recently, the PV inverter market has shown strong signs of recovery, with shipments reached record levels, so the market analyst IMS Research (United Kingdom Wellingborough), said the outlook for the market has become quite optimistic.

The third-quarter shipments of photovoltaic inverters over 2.5GW, the recovery signal amazing, and in the first half of this year when the market is stagnating. Global revenues are expected to be inverter more than 600 million euros (892.5 million U.S. dollars), compared with last year's third quarter rose 30 percent, and almost twice the previous quarter. In particular, in Germany, an increase of more obvious in the third quarter alone inverter in the market, shipments reached 1.2GW, that figure is almost the first half of shipments in this market twice. Inverter market growth also reflects the strong overall PV market in Germany, they also seized more expensive PV system.

"The third quarter of 2009 photovoltaic inverter market, incredible strength, we expect this momentum can continue into the end of this year," IMS Research's photovoltaic research analyst Sam Wilkinson said. "The first half of module prices decline rapidly, while financial conditions gradually turn for the better, which makes investors to return to the PV market.

In the fourth quarter, demand is expected to remain very strong, but it will be limited to inverters and other components of the supply of many suppliers currently do not have enough products can be delivered until the first quarter of 2010. In the past year, the price of photovoltaic inverters have been reduced by about 10%, compared with PV module suppliers experienced severe price declines, a 10% drop seems not too big.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月12日星期六

Nfs car power inverter is on sale

Nfs car power inverter is on sale




It is reported to participate in sale of nfs car power inverter, likes to go out wild tour Juyou essential equipment. It can convert DC12V or DC24V to AC220V AC DC, through the plug in the cigarette lighter socket can be at any time for notebook computers, mobile phones, digital cameras, camcorders, power tools and other services to provide 220V power supply. 1000W ~ 2000W inverter can even bring microwave ovens, refrigerators and other high-power electrical appliances. In order to ensure product quality, dealer committed to participating in the activities of this special commodity, is absolutely genuine, enjoy the warranty provided by the original manufacturer, and warranty cards issued. At the same time said that if the reader found that participating in the activities of this special commodity, other stores sell for less than price of this event, dealers will post double compensation for the reader.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Emerson Network Power Booster Extension Day Sun City Solar Power Plant in Shanxi

Emerson Network Power Booster Extension Day Sun City Solar Power Plant in Shaanxi




Recently informed that, in the Shaanxi (Chengcheng) extension on the project in Sun City Building Integrated PV photovoltaic power station in the building, Emerson-owned business brand "full protection of critical business TM" a global leader in Emerson Network Power, with its performance products, complete solutions and quality services has become important to the project solution provider for the project provided two sets of initial SSL100 (100KW) inverter.



Shaanxi (Chengcheng) extension on the project is located in Sun City, Weinan City, Shaanxi Province Chengcheng County Temple and the town, is this year's Shaanxi Province, one of the key construction projects identified by the extension of Shenzhen New Energy Technology Co., Ltd. (hereinafter referred to as "New Extension Energy ") investment. As an important component of the project, optoelectronics, photovoltaic power station building integration (BIPV) the construction of much concern about the leadership of provincial and municipal levels. The main building of the station on the roof of the factory, with 42 factory building and into the body, with a total size of 10MW, is the real sense of building-integrated photovoltaic. In order to ensure the quality of project construction and engineering of the steady progress, expand the New Energy strict control of every aspect of project construction and taken to a public tender in the form of equipment selection.



As a global network of energy products and integrated solutions and integration services to the mainstream providers, Emerson Network Power by virtue of the comprehensive advantages as well as in the field of grid-connected PV innovative spirit, providing an efficient, intelligent, flexible, known SmartShineTM Series inverter products in the project's tender Nance. After winning, Emerson Network Power rapid response, not only to ensure a timely delivery, but also for the New Extension provides all aspects of the energy service and technical support. This year in October, the station, the success of the first factory buildings and building photovoltaic power generation, Emerson Network Power Inverter stable operation and high efficiency, has been a high degree of customer recognition. The conclusion of the project and the smooth implementation of, once again demonstrates the company's strong comprehensive strength and technological leader's image.



Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月11日星期五

Classification of inverter

Classification of inverter


Inverter power supply according to the different hair divided into coal power inverter, solar inverter, wind power inverter, and who can inverter. According to different uses, divided into independent control inverter, grid-connected inverter.

At present the domestic market, the inverter efficiency.

As mentioned above, the inverter at work as part of its own consumption of electricity must, therefore, its input power is greater than its output power. The efficiency of inverter that is inverter input power and output power ratio. If a station inverter DC input of 100 watts, the output of 90 watts of alternating current, then it's efficiency is 90%. Currently the world's solar power inverter, efficient Europe and the United States, the European standard is 97.2%, but prices are more expensive, the domestic market only, Jiangsu New Energy Co., Ltd. Sales Department Esso a recent interview, when Mr. Lee's claim to the TL series of solar V inverter for maximum efficiency of individual machines can reach 97.6%, other domestic inverter efficiency of 90% or less, but the price was much cheaper than imports. In addition to the efficiency of that, select the inverter waveform is also very important.

  Uses:

Widely used in air conditioners, home theater, electric grinding wheel, power tools, sewing machines, DVD, VCD, computers, television sets, washing machines, range hoods, refrigerators, VCRs, massage devices, fans, lighting, etc.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-29977792. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Diodes’ application in the inverter

Diodes’ application in the inverter


High efficiency and energy-saving appliances applications are the primary problems. Three-phase brushless DC motors because of its high efficiency and small size advantage has been widely used in consumer electronics devices as well as many other applications. In addition, the use of electronic commutator instead of mechanical reversing device, three-phase brushless DC motors are considered more reliable.

The standard three-phase power stage (power stage) is used to drive a three-phase brushless DC motor, shown in Figure 1. Power level to generate a electric field, in order to make a good motor to work in this field must be maintained with the angle between the rotor magnetic field close to 90 °. Six-step sequence control of the stator magnetic field vector produced six of these vectors must be a specified rotor position to change. Hall-effect sensors scan the rotor position. In order to provide six step rotor current, power level can be used six different specific sequence of switching power MOSFET. The following explains a common switching modes, providing six step currents.

MOSFET Q1, Q3 and Q5 high-frequency (HF) switch, Q2, Q4, and Q6 low-frequency (LF) switch. When a low-frequency MOSFET in the open state, but also a high-frequency MOSFET in a switching state, it will produce a power level.

Step 1) The power level at the same time to two-phase power supply, while the third phase is not receiving power. Assumed power phase of L1, L2, L3 not receiving power. In this case, MOSFET Q1 and Q2 in conduction state, current flows through Q1, L1, L2, and Q4.

Step 2) MOSFET Q1 off. Because the inductance can not be a sudden interruption of current, it will generate additional voltages, until the body diode D2 is directly biased and allows the continued flow of current flow. Freewheeling current path for the D2, L1, L2, and Q4.

Step 3) Q1 opens, the sudden anti-bias body diode D2. Q1 on the current total supply current (as in step 1) and the diode D2 on the recovery currents.

Show that there is a body - drain diode. In Step 2, the current flows into the body - drain diode D2 (see Figure 1), the diode is forward biased, minority carriers injected into the diode area and P area.

When the MOSFET Q1 turns on, the diode D2 is reverse-biased, N region minority-carrier into the P + body area, and vice versa. This led to a large number of fast-moving current flowing through the diode, from the N-epi to the P + area, that is, from drain to source. Inductor L1 flows through Q2 and Q1 for the peak current meter emerged in high impedance. Q1 showed an additional current spikes, an increase of the turn-on switching losses during the period. Figure 4a describes the MOSFET's turn-on process.

In order to improve in these specific applications, body-diode characteristics, R & D staff to develop a fast body diode recovery characteristics of MOSFET. When the diode conduction after reverse-bias, reverse recovery peak current Irrm smaller.

We tested a standard MOSFET contrast and fast recovery MOSFET. ST introduced STD5NK52ZD (SuperFREDmesh series) on Q2 (LF) in as shown in Figure 4b. In Q1 MOSFET (HF) during the conduction, switching losses reduced by 65%. When using STD5NK52ZD efficiency and thermal performance and scored a great increase (without using the free flow of cooler air environment, the shell temperature from 60 ° C down to 50 ° C). In this topology, MOSFET internal body diodes as freewheeling diodes, using a fast MOSFET body diode recovery characteristics more appropriate.

SuperFREDmesh technology make up the existing FDmesh technology with lower on-resistance, zener gate protection and a very high dv / dt performance and uses a fast body - drain recovery diode. N-channel 520V, 1.22 Ohm, 4.4A STD5NK52ZD can provide a variety of packages, including TO-220, DPAK, I2PAK and IPAK package. The device is designed to switch applications for engineers greater flexibility. Other advantages include very high dv / dt, is 100% avalanche tested, with a very low intrinsic capacitance, good repeatable manufacturing, as well as improved ESD performance. In addition, an optional module with the other solutions, compared to discrete solutions offer a flexible PCB, locate the device in order to achieve the optimization of space and access to effective thermal management, so this is a cost-effective solution.

There are many inverters on the market, compare professional brand. Such as: Blue Weier Shi, Hubei branch of production Weier Shi Department of solar power inverter and car inverter. Friends of the Shanghai Electric Power Co., Series Solar Car Inverter.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-29977792. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月10日星期四

Can the car power inverter be used when the vehicle engine is turned off?

Can the car power inverter be used when the vehicle engine is turned off?


Yes. Following the use of 350-watt low-power appliances, general vehicle battery shut down the engine in the case of providing 30-60 minutes of power, if only consumes 50-60 watts using a notebook computer, use of time will have to grow more. Our quasi-sine wave inverters are equipped with under-voltage warning, and undervoltage protection circuit, when the prolonged use of the battery voltage drops to 10 volts led, the under-voltage protection circuit starts, the output voltage is cut off and the police, to prevent the battery because the voltage is too low to start the engine of the accident. Therefore, the user can safely shut down the state of the engine used inverter.

Another prepared a similar voltage battery, its positive and negative wires were thick enough to use the original vehicle battery with positive and negative connected. In this way, inverter stand-alone time can be substantially extended.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

The danger of power inverter

The danger of power inverter


From the car battery to the power inverter input section of wire that carries a very large current, if the wire is of poor quality, wire too small or load exceeding even ultimately lead to a fire wire heating will lead to very serious incidents. Thus, in the process of using the inverter must be in strict accordance with the user's manual to operate.


The capacity of the battery
The battery has a lot of printed letters and numbers, as long as the words can be found XXAH know that this is a much-capacity battery. AH said that the meaning of the first, A representative inverterof amps (amp.), is a current unit, H on behalf of an hour (hour). Two letters together, the meaning is "ampere hours", that is, within one hour of sustainable output of the number of amps of current. XX is usually in front of the two figures, namely, the number of amps. For example, 45AH battery on behalf of this piece can be an hour of time out (12 volts) 45 amps of current. As for the piece battery can output power, we use 12-volt multiplied by 45 amps, arrive at 540 watts, which is the battery output power (theoretical value).


Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

Specifications of family car battery

Specifications of family car battery

Under normal circumstances, the cylinder capacity of 1.3 liter compact car equipped with an 40-45 when the battery ,1.6-2 .0-liter mid-size car equipped with an 50-60 when the battery, 2.2 liters of medium and large cars 60-80 when equipped with a security battery. Off-road vehicles, utility vehicles equipped with battery generally higher than the same size engine car battery capacity should be larger. As for the battery voltage, generally using 12-volt car batteries, diesel engine vehicles (including heavy-duty trucks) the majority of the use of 24-volt battery, a few still using 12-volt battery (such as Iveco).


Therefore, you must equip the power inverter with a suitable inverter battery. If the battery specification is 12 volts 50 AH, we use an 12-volt multiplied by 50 when the battery's power output reached 600 watts. If the inverter efficiency of 90%, then we multiplied by 90% then 600 watts, 540 watts draw. This means that you can move a single piece of battery output power of up to 540-watt inverter. Of course, you can also take "one step" type of procurement practices, namely, first, regardless of their current car battery used in the specifications, but to buy a power output of 800 watt inverter. Then, the first piece of the battery now used within the allowable range, and so in the future for a greater use of the car and then full power. Finally, the power inverter not ask for much, for example, 100 watts is enough, then you can buy a low-power inverter. In addition, in determining when the power inverter, there is an important principle, namely, the use of inverter, do not run the full long-term, otherwise it will greatly shorten the life of the inverter while the inverter will also be a significant failure rate
. We strongly recommend that users, preferably no more than 85% of rated power of the state, the use of inverter.


Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月9日星期三

Specifications of family car battery

Specifications of family car battery


Under normal circumstances, the cylinder capacity of 1.3 liter compact car equipped with an 40-45 when the battery ,1.6-2 .0-liter mid-size car equipped with an 50-60 when the battery, 2.2 liters of medium and large cars 60-80 when equipped with a security battery. Off-road vehicles, utility vehicles equipped with battery generally higher than the same size engine car battery capacity should be larger. As for the battery voltage, generally using 12-volt car batteries, diesel engine vehicles (including heavy-duty trucks) the majority of the use of 24-volt battery, a few still using 12-volt battery (such as Iveco).

Therefore, you must equip the power inverter with a suitable inverter battery. If the battery specification is 12 volts 50 AH, we use an 12-volt multiplied by 50 when the battery's power output reached 600 watts. If the inverter efficiency of 90%, then we multiplied by 90% then 600 watts, 540 watts draw. This means that you can move a single piece of battery output power of up to 540-watt inverter. Of course, you can also take "one step" type of procurement practices, namely, first, regardless of their current car battery used in the specifications, but to buy a power output of 800 watt inverter. Then, the first piece of the battery now used within the allowable range, and so in the future for a greater use of the car and then full power. Finally, the power inverter not ask for much, for example, 100 watts is enough, then you can buy a low-power inverter. In addition, in determining when the power inverter, there is an important principle, namely, the use of inverter, do not run the full long-term, otherwise it will greatly shorten the life of the inverter while the inverter will also be a significant failure rate上升. We strongly recommend that users, preferably no more than 85% of rated power of the state, the use of inverter.

Shenzhen MaoRun Electric Co., LTD.(www.spowerinverter.com) offers excellent customer support and we would be happy to answer any questions that you might have. If you have any further questions about power inverters, cables or batteries. Please give us a call at +86-755-88823234. We are manufacturer of power inverter, esp. car inverter, adapter and travel socket. OEM is also welcomed.

2009年12月2日星期三

TBEA new energy company successfully won the bid of Wuhan railway station photovoltaic grid-connected power generation project

TBEA new energy company successfully won the bid of Wuhan railway station photovoltaic grid-connected power generation project

September 29, 2009, after intensive evaluation and fierce rivalry, TBEA NewEnergySuccessfully won the bid of China's largest train station rooftop solar photovoltaic power generation project - Wuhan railway station solar photovoltaic power generation project. This project has successfully won the bid to become the Sun Hill project in Ningxia within one month after the company won another 1 MW class large-scale project once again demonstrates our company's market competition situation in the new projects under construction and operational capability.

The winning bid of Wuhan railway station grid-connected PV projects, the successful tenderer mainly covers grid-connected inverter, DC-mine supply cabinet and the equipment design, manufacture, installation and testing of such construction site in Hubei province Wuhan railway station 25 m layer of the inverter room.

This year, the company every success in gradually winning over MW-class grid power plant construction project fully demonstrates the company's strategic decision-making to adjust to market the timeliness and accuracy.

Wuhan Railway Station is the first in a forest in the train station, is located in Yang Qingshan Lake, is the world's longest passenger line train station, its roof consists of a main wing and eight ailerons composition. Solar photovoltaic power projects built in the nine-wing shelf above the silicon plate materials to be used to design an annual generation of about 20 million kwh, mainly for the railway station indoor lighting and air conditioning. Project is scheduled to start construction in October, December 20 after the main construction, will provide energy-saving environmental protection, Wuhan railway station cleanEnergy.

The project is currently the country's largest rooftop solar photovoltaic power station project in Hubei Province for promoting solar energy use and photovoltaic cell components of great significance to development of the industry.

2009年12月1日星期二

Emerson Enter Chinese Photovoltaic PV Inverter

Emerson Enter Chinese Photovoltaic PV Inverter


Following the U.S. PV giant First Solar, Solange - English Ford Fun Energy Technology Group and other companies similar Lazi China, Emerson also expand its reach into China.

This reporter was informed that the November 30, November 2009, Emerson Network Power Emerson brandsCompanyGains of the two largest PV power plant in China alone. One of which won the bid, Kunming Shilin 66 MW of photovoltaic power plant project, the first phase of the project to provide two sets of 500 kW inverter and auxiliary systems; the contents of the second bid for the Sun City project Chengcheng Billiton on PV power plant project, to provide two sets of 100-kilowatt inverter.

"And the PVIndustryIn the polysilicon, batteries, components and systems compared to the achievements of the domestic photovoltaic inverter in the area of production is a weakness. "As China's largest photovoltaic systems provider, the Sheng Photoelectric group vice president and chief marketing officer, told reporters She Haifeng, the domestic photovoltaic inverter industry as a whole lower level in the procurement of photovoltaic Sheng Photoelectric inverter to use more Siemens, SMA and other foreign-funded enterprises, "the domestic stability of the inverter, as in not as good as second-tier brands, but the costs are almost the same."

PV inverter current domestic market, mostly foreign brands to control, with the first into China SMA, for example, to obtain from its current photovoltaic power generation and independent power supply system project more than 300 orders. Emerson Network Power's access to information was also found that the company has not been previously sold in China, photovoltaic inverter's record, had more orders for the field of domestic telecommunications customers.