Patent ID: 11949353
Assignee: SANDEN CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A motor control device compensating for a torque ripple caused by spatial harmonics, comprising:
a voltage command calculation unit to calculate a d-axis voltage command value Vdref and a q-axis voltage command value Vqref from a d-axis current command value id* and a q-axis current command value iq* of a motor;
a feed forward command value calculation unit to calculate a q-axis voltage feed forward command value Vqff* for generating a q-axis current ripple on the basis of spatial harmonic parameters and the frequency characteristics of a motor winding; and
a subtraction unit to subtract the q-axis voltage feed forward command value Vqff* calculated by the feed forward command value calculation unit from the q-axis voltage command value Vqref calculated by the voltage command calculation unit.