Current Harmonics Controller for Reduction of Acoustic Noise, Vibrations and Torque Ripple Caused by Cogging Torque in PM Motors under FOC Operation

Martin Sumega, Pavol Rafajdus and Marek Stulrajter
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Martin Sumega: Department of Power Systems and Electric Drives, Faculty of Electrical Engineering and Information Technology, University of Zilina, 01026 Zilina, Slovakia
Pavol Rafajdus: Department of Power Systems and Electric Drives, Faculty of Electrical Engineering and Information Technology, University of Zilina, 01026 Zilina, Slovakia
Marek Stulrajter: Department of Power Systems and Electric Drives, Faculty of Electrical Engineering and Information Technology, University of Zilina, 01026 Zilina, Slovakia

Energies, 2020, vol. 13, issue 10, 1-23

Abstract: This article presents an effective algorithm to reduce acoustic noise, vibrations and torque ripple caused by cogging torque in three-phase Permanent Magnet (PM) motors under Field Oriented Control (FOC) operation. Cogging torque profile is suitably included into q -axis current reference, which must be then precisely tracked in order to mitigate acoustic noise, vibrations, torque ripple and speed ripple caused by cogging torque. Conventional FOC structure has been extended by a Current Harmonics Controller (CHC) to achieve precise control of dq current harmonics for all operation speeds, which is crucial to reduce impact of cogging torque and increase performance of electric drive with PM motor. Effectiveness of proposed control technique is experimentally verified by vibrations and acoustic noise measurements.

Keywords: cogging torque; acoustic noise; vibrations; torque ripple; current harmonics controller; cogging torque reduction; PM motor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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