MOTOR CONTROL DEVICE

原文（中国語）

A motor control device includes an inverter configured to convert a direct-current voltage supplied from a direct-current power supply into an alternating-current voltage, and apply the alternating-current voltage to a motor, a detection unit configured to detect a bus current of the inverter by using a resistance connected between the direct-current power supply and the inverter, a calculation unit configured to calculate a motor current flowing through the motor based on the bus current, a first extraction unit configured to extract a noise component included in the motor current from the motor current, and a determination unit configured to determine a magnitude of a noise in the bus current based on the noise component.