Motor control system to compensate for torque ripple

  • US 9,136,785 B2
  • Filed: 03/12/2013
  • Issued: 09/15/2015
  • Est. Priority Date: 03/12/2013
  • Status: Active Grant
First Claim
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1. A motor control system, comprising:

  • a motor having plurality of motor harmonics; and

    a torque ripple compensation controller in communication with the motor, the torque ripple compensation controller configured to;

    determine a harmonic ripple current for each of the plurality of motor harmonics based on a reference q-axis current and a reference d-axis current; and

    add the plurality of harmonic ripple currents together to determine a ripple compensating current that is used to remove the plurality of harmonic ripple currents from the reference q-axis current and the reference d-axis current.

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