SYSTEM INTERCONNECTION INVERTER

摘要

PROBLEM TO BE SOLVED: To solve the problem due to the fact that the waveform of an output current is distorted in the morning or in the evening when the amount of received light of solar light is small in a conventional system interconnection inverter. SOLUTION: The output of a first inverter 4 for high output and a second inverter 12 for low output is connected to a system power supply 7 according to the output of a DC power supply 1 of a solar battery using a first switching means 11, thus achieving a system interconnection inverter without any distortion of output waveform even after a long use.