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Design and Development of Low Torque Ripple Variable-Speed Drive System with Six-Phase Switched Reluctance Motors

Lookup NU author(s): Dr Xu DengORCiD, Professor Barrie Mecrow, Dr Haimeng Wu, Dr Richard Martin



This is the authors' accepted manuscript of an article that has been published in its final definitive form by IEEE, 2018.

For re-use rights please refer to the publisher's terms and conditions.


IEEE Switched Reluctance Motor (SRM) drives conventionally use current control techniques at low speed and voltage control techniques at high speed. However, these conventional methods usually fail to restrain the torque ripple which is normally associated with this type of machine. Compared with conventional three-phase SRMs, higher phase SRMs have the advantage of lower torque ripple: to further reduce their torque ripple, this paper presents a control method for torque ripple reduction in six-phase SRM drives. A constant instantaneous torque is obtained by regulating the rotational speed of the stator flux linkage. This torque control method is subsequently developed for a conventional converter and a proposed novel converter with fewer switching devices. Moreover-modeling and simulation of this six-phase SRM drive system has been conducted in detail and validated experimentally using a 4.0-kW six-phase SRM drive system. Test results demonstrate that the proposed torque control method has outstanding performance of restraining the torque ripple with both converters for the six-phase SRM, showing superior performance to the conventional control techniques.

Publication metadata

Author(s): Deng X, Mecrow B, Wu H, Martin R

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Energy Conversion

Year: 2018

Volume: 33

Issue: 1

Pages: 420-429

Print publication date: 01/03/2018

Online publication date: 20/09/2017

Acceptance date: 02/04/2016

Date deposited: 13/12/2017

ISSN (print): 0885-8969

Publisher: IEEE


DOI: 10.1109/TEC.2017.2753286


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