Reform and application of solar cell modules

Reform and application of solar cell modules




U.S. solar cell market conditions



Currently, California is the U.S. demand for solar cells driving force. The state's 2009 annual import is about 350MW, equivalent to half of the entire United States. However, the next 2 ~ 3 years, the state's import volume growth is likely to decline. In 2009 increased 150% over the previous year, while in 2010 there is expected to be slow, with only a one-year increase of 75%. In addition, in 2011, is expected to further decline, only a 10% increase over the previous year. Under its influence, the overall U.S. import volume growth of solar cells will also be 2 ~ 3 years showed a downward trend.



Reform of solar cell modules



Originally multiple solar battery module in series, another link with the power inverter. Therefore, there is sunshine if there is a result of the uneven and unequal characteristics lead to decline in power output module, the overall output power can greatly reduce the problem.



In order to solve this problem, each solar cell modules in the future may be equipped with inverter and converter. It's called "micro-inverters" and "micro-converter." This can be achieved by each module to optimize the output power, making the overall output power to maximize. In addition, the combination of words and communication functions can also be used to monitor the status of each module, to detect faulty modules.



Application of solar cell modules



Micro-inverter is equipped with all of the various modules available on the function of the inverter. In other words, from the optimization of output power to the DC-AC conversion by the module to carry out. The output power from the module exchanges can be directly incorporated into the grid. As the construction easy, so the installation of residential and commercial facilities, businesses should there is a demand.



Micro-converter output power of each module optimization and DC-DC converter, and the remaining DC-AC converter is set by the other inverter to complete. Micro-converter positioned in the existing inverter and between the micro-inverter. As the solar cell module output power of DC, so it can generate electricity directly to the DC state be used to charge batteries. No electricity area of wireless communication base stations, which do not access to network facilities, there is demand for an independent.



In addition, there may also be a large demand for solar power stations. How do large-scale solar power plants exist a huge number of solar cell modules to find fault module problem. The chip is equipped with control and communication micro-converter will help to solve this problem. As the micro-inverter is higher than the price of micro-converter, it is difficult to import large-scale solar power stations.