AN ELECTRICAL POWER CONVERSION SYSTEM AND CONTROL METHOD THEREOF

摘要

The power conversion system according to an embodiment includes: an inverter comprising a three-phase circuit having a plurality of power semiconductor elements and supplying driving power to a motor according to an applied torque command; and a controller that predicts the maximum temperature of the inverter based on the measured temperature of any one of the plurality of power semiconductor devices and the phase current of the motor, and actively limits the torque command according to the predicted maximum temperature of the inverter; may include