Motor control system to compensate for torque ripple
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United States of America Patent
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Jun 9, 2015
Grant Date -
Sep 18, 2014
app pub date -
Mar 12, 2013
filing date -
Mar 12, 2013
priority date (Note) -
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Abstract
A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.
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