INVERTER SYSTEM THAT CAN DETECTING OUTPUT GROUND FAULT AND METHOD FOR DETECTING OUTPUT GROUND FAULT USING THE SAME

摘要

The present invention relates to an inverter system capable of detecting an output ground fault and an output ground fault detection method using the same, in particular, to an inverter that detects an output ground fault by detecting the current of a shunt resistor (Leg-Shunt Resistor) and an inverter output ground fault detection method using the same It is about. The present invention can reliably detect the output ground fault of the inverter by comparing the absolute peak value of the three-phase current AD Raw value detected from the shunt resistor.