Converter apparatus, inverter apparatus, and DC link voltage control method

摘要

The invention is directed to the provision of a converter apparatus, an inverter apparatus, and a DC link voltage control method, wherein the upper limit value of the DC link voltage that rises due to regenerative energy occurring from a motor is set high, thereby increasing the regenerative energy to be stored in a DC link. The converter apparatus ( 10 ) comprises: a voltage detection part ( 11 ) for monitoring the DC link voltage occurring across the DC link ( 30 ); and a charge stopping part ( 12 ) for stopping charging a power storage part (C) when the detected value of the DC link voltage exceeds a predetermined upper limit voltage as the motor ( 3 ) is decelerated.