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Torque Ripple Reduction in Sectored Multi Three-Phase Machines Based on PWM Carrier Phase Shift

Wang, Xuchen; Sala, Giacomo; Zhang, He; Gu, Chunyang; Buticchi, Giampaolo; Formentini, Andrea; Gerada, Chris; Wheeler, Patrick

Authors

Xuchen Wang

Giacomo Sala

He Zhang he.zhang@nottingham.edu.cn

Chunyang Gu

Giampaolo Buticchi

Andrea Formentini andrea.formentini@nottingham.ac.uk

Chris Gerada chris.gerada@nottingham.ac.uk

Patrick Wheeler pat.wheeler@nottingham.ac.uk.g.salaiswiththe



Abstract

The interest in multiphase machines for high power and reliable drives has been growing, and many control algorithms have been proposed to improve their torque performance. This work presents a new approach to the modeling of a multi three-phase drive, aiming at the minimization of the torque ripple introduced by Pulse Width Modulation (PWM) voltage excitation, by the shift of carrier phase angles among different three-phase inverters. The underlying idea is to use standard three-phase converters feeding the individual segment and to apply a phase shift between the PWM carriers. For the torque ripple analyzed in this paper, only the interaction between the armature field, resulting from the PWM voltage excitation, and the fundamental component of the permanent magnet field is considered. The proposed carrier phase shift angles are obtained for a case study of sectored triple three-phase synchronous permanent magnet machine. Analytical, numerical and finite element analysis (FEA) results are presented to explain how the carrier shift angles affect the current and torque ripple. Finally, experimental results are presented to validate the model and the control algorithm.

Journal Article Type Article
Publication Date 2020-06
Journal IEEE Transactions on Industrial Electronics
Print ISSN 0278-0046
Electronic ISSN 1557-9948
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 67
Issue 6
Pages 4315-4325
APA6 Citation Wang, X., Sala, G., Zhang, H., Gu, C., Buticchi, G., Formentini, A., …Wheeler, P. (2020). Torque Ripple Reduction in Sectored Multi Three-Phase Machines Based on PWM Carrier Phase Shift. IEEE Transactions on Industrial Electronics, 67(6), 4315-4325. https://doi.org/10.1109/TIE.2019.2931239
DOI https://doi.org/10.1109/TIE.2019.2931239
Keywords Analytical models, Multiphase drives, Machine vector control, Permanent magnet machines, Pulse
Publisher URL https://ieeexplore.ieee.org/document/8782838
Additional Information © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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