Solar market is prosperous and the price of inverter is expected to be lower

Solar market is prosperous and the price of inverter is expected to be lower




The rise of emerging markets, often means the birth of new opportunities. As a new solar energy, battery manufacturing, power conversion and other related companies to play a new stage. Because PV systems produce DC current, but mainly for civilian power to AC power, and solar power will eventually run into the grid, which means that solar power inverter must be converted to alternating current to direct current drive home electrical appliances load. Therefore, the inverter in the solar power generation system has a pivotal role.



Inverter power supply main function is to enter into a variable DC voltage AC sine wave output without interference, both for equipment use, but also feedback to the grid. In addition to achieving AC-DC conversion, the inverter can also perform other functions, such as the circuit is disconnected, to prevent circuit damage due to current surges, also can charge the battery, on the use and performance of data storage, and maximum power point tracking (MPPT), to maximize the efficiency of power generation.



Although the solar cell manufacturers in recent years has been committed to improving the photoelectric conversion efficiency of solar cells, but in February 2010 on the highest solar cell conversion efficiency of view, 15cm × 15cm 200μm thick solar cells can only achieve 19.3% conversion efficiency. As the solar panel conversion efficiency is relatively low (average about 15%), so get as much as possible from the solar panel output power of responsibility falls on the inverter body.



Solar inverter performance improvement is more dependent on the power switching devices, like access to high AC output voltage and current, power devices require correct choice. China is the major development is the high-power solar systems, Golden Sun demonstration project provides financial subsidies for Interim Measures, a single project installed capacity of not less than 300kWp. With the increase of single-power, solar inverter technology and devices subject to restrictions on the form of relatively simple circuit, primarily three-phase inverter bridge, the important task of improving energy efficiency fell on power devices, the device itself, the performance and designed to use is the key.



In the small and medium-power solar inverters, many companies have their own proprietary circuit structure, a new generation of power devices so that these circuits even more powerful, efficiency, reliability, performance and other areas has greatly increased. Infineon has developed a series of solar application products, such as high-power three-level module Easy and Econo4 portfolio, 50A ~ 300A650V; high-speed IGBT and SiC diode PrimePACK module specification 600A1200V. These power devices will help to promote more than 100KW solar inverter efficiency to a higher level. In addition, Infineon's structure grooved-gate field termination technology FieldStopIGBT, CoolMOS, silicon carbide SiC diode in energy-efficient solar inverters have outstanding performance.



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