Research On Small Size And Sine Wave Output Inverter For Solar Energy System

In recent years, our country has made great progress in Photovoltaic applications. In which inverters play an important role. The traditional inverters include generally a 50 or 60 Hz trastormer for raising the output voltage. As a result,there are some disadvantages for its large size,heavy weight and lower efficiency. In this paper, Phase-shifted zero-voltage-switching PWM converter is presented ,which is help to ruduce the size and improve the efficiency of inverter.In the later stage, we adopted a PIC microcomputer as the control chip, whose low price decreases the price of the inverter. Under the control of microcomputer, the sine vave output is produced. Base on the result, the SPWM wave is static and reliable .