| 摘要 |
In a case where a computing period of a torque ripple compensation section which computes current compensation values Deltaid and Deltaiq to be caused to flow into a motor in order to prevent occurrence of a torque ripple in the motor differs from a control period of a current control section which controls a feedback to the motor in such a way that current command values i*d and i*q additionally provided with the current compensation values Deltaid and Deltaiq flow into the motor, the microcomputer sets the current compensation values Deltaid and Deltaiq to zero when a rotor angular velocity omegare of the motor is equal to or greater than a first threshold value omega<SUB>1</SUB>.
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