MOTOR DRIVE DEVICE AND MOTOR DRIVE DEVICE CONTROL METHOD

摘要

A motor drive device (100) includes a boosting converter (12) for boosting a power source voltage and outputting a boost voltage, an inverter (14) for receiving the boost voltage from the boosting converter (12) to drive a motor (M1), and a control device (30) for instructing a target value of the boost voltage to the boosting converter (12) and deciding the control method of the inverter (14) to be a rectangular wave control or a non-rectangular wave control. The control device (30) is configured so as to select a first operation mode which instructs a first boost target value to a predetermined same input signal indicating a torque request and specifies a non-rectangular wave control as the control method and a second operation mode which instructs a second boost target value lower than the first boost target value to the predetermined same input signal and specifies a rectangular wave control as the control method.