Motor control device that controls d-axis current of a permanent magnet synchronous motor

摘要

A motor control device that performs vector control to independently control a q-axis current and a d-axis current of a permanent magnet synchronous motor. The motor control device includes a q-axis current and d-axis current detection unit configured to detect a q-axis current and a d-axis current of a permanent magnet synchronous motor, a q-axis current command value generation unit configured to generate a q Generating an axial current command value, a d-axis current command value generation unit configured to generate a d-axis current command value in which an amount of rise in temperature of permanent magnets in a stationary state of the permanent magnet synchronous motor is minimum, and a drive unit configured to drive the permanent magnet synchronous motor.