A motor control device that controls driving of an AC motor connected to a power converter performing power conversion from DC power to AC power, the AC motor driven using the AC power, includes a carrier wave generation unit that generates a carrier wave, a carrier wave frequency adjustment unit that adjusts frequency of the carrier wave, and a PWM control unit that performs pulse width modulation using the carrier wave on a voltage command corresponding to a torque command to generate a PWM pulse signal for controlling operation of the power converter, wherein the carrier wave frequency adjustment unit adjusts the frequency of the carrier wave so as to change a phase difference between the voltage command and the carrier wave based on magnitude of vibration for each circular order of electromagnetic excitation force generated circularly in a radial direction of the AC motor.
MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, HYBRID SYSTEM, BOOST CONVERTER SYSTEM, AND ELECTRIC POWER STEERING SYSTEM
2025-07-10
Patent
Electronic Resource
English
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