| 摘要 |
It is an object of the present invention to provide a motor control device that can improve stability of sensorless control of a permanent magnetic synchronous motor. Rotor position detecting means (10) includes motor parameter correcting means (30) for correcting a parameter (winding resistance of a coil, a magnetic flux amount of a permanent magnet), which is a machine constant of a motor, in order to eliminate an induced voltage difference between a detected induced voltage peak value and a detected estimated induced voltage peak value and detects the rotor position on the basis of the corrected parameter. |
