| 摘要 |
Provided is a motor control device that detects a position error between a detection position, calculated from a rotation position sensor signal of a motor, and a position of a motor induced voltage and performs phase correction. A motor control device 400 includes an inverter unit (motor drive unit) 100 and a motor unit 300. The inverter unit 100 includes a current control unit 120 that detects a drive current of a motor 310 and outputs a voltage command, a three-phase voltage conversion unit 130 that outputs a drive signal based on the voltage command that has been output, an inverter circuit 140 that supplies the motor with the drive signal, and a phase correction unit 170 that corrects a phase detected by a rotation position sensor 320. The phase correction unit includes a phase switching unit that switches between a phase for normal control and a phase for phase adjustment, and a phase error calculation unit that calculates a phase error equivalent to a mounting position error of the rotation position sensor. The mounting position error is corrected by adding/subtracting the phase error to/from the phase for normal control during phase correction operation. |
