| 摘要 |
PROBLEM TO BE SOLVED: To provide an inverter linked to a system which can detect the single operation of the inverter by simple method and stop the linked operation. SOLUTION: An inverter linked to a system is equipped with an inverter main circuit 20 which converts the DC power supplied from a solar battery 1 into AC and supplies power to load in cooperation with a commercial power system 3, and an inverter control circuit 20 which drives the inverter main circuit 2, and it is equipped with a saturable reactor 32 inserted into the output side of the inverter main circuit 2 and a zero cross voltage distortion detecting circuit 31 detecting the system voltage, and the inverter control circuit stops the linked operation in case that it has detected the wave distortion of the system voltage in the vicinity of zero cross, based on the output of this zero cross voltage distortion detecting circuit. |
