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Measurement and control of torque ripple-induced frame torsional vibration in a surface mount permanent magnet machine

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4 Author(s)
Beccue, P. ; Dept. of Electr. Eng., Univ. of Missouri-Rolla, Rolla, MO, USA ; Neely, J. ; Pekarek, S. ; Stutts, D.

A sensor to measure the stator torsional vibration due to torque ripple produced by a surface mount permanent magnet machine is first described. The sensor is relatively inexpensive and is straight forward to incorporate into a drive system. Experiments are performed to validate that the voltage produced by the sensor is linearly related to torque ripple amplitude. Closed-loop controllers are then described that adjust the stator current harmonics applied to the machine to achieve a commanded average torque while mitigating measured torsional vibration. Simulation and experimental results are used to demonstrate the effectiveness of the control techniques.

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Power Electronics, IEEE Transactions on  (Volume:20 ,  Issue: 1 )