A Novel Step Current Excitation Control Method to Reduce the Torque Ripple of Outer-Rotor Switched Reluctance Motors

Jieyun Wang, Wei Jiang, Shuren Wang, Jingying Lu, Barry W. Williams and Qianlong Wang
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Jieyun Wang: Department of Electronic and Electrical Engineering, Faculty of Engineering, University of Strathclyde, Glasgow G1 1XQ, UK
Wei Jiang: Department of Electrical Engineering, Yangzhou University, Yangzhou 225012, China
Shuren Wang: Department of Electronic and Electrical Engineering, Faculty of Engineering, University of Strathclyde, Glasgow G1 1XQ, UK
Jingying Lu: Department of Electrical Engineering, Yangzhou University, Yangzhou 225012, China
Barry W. Williams: Department of Electronic and Electrical Engineering, Faculty of Engineering, University of Strathclyde, Glasgow G1 1XQ, UK
Qianlong Wang: Department of Electrical Engineering, Yangzhou University, Yangzhou 225012, China

Energies, 2022, vol. 15, issue 8, 1-15

Abstract: Featured in low-speed and high-torque operation, outer-rotor switched reluctance motors (OSRMs) have the potential to be widely deployed in low-speed commuter and logistics vehicle applications. In this paper, a five-phase OSRM and the control method featuring torque ripple reduction has been proposed, which can be applied as the wheel hub motor in the electric vehicles. The simulation was carried out to analyze the OSRM operation. The electromagnetic characteristics of single-phase and two-phase hybrid excitation mode, as well as step current excitation mode, were compared and analyzed. To solve the problem of the large torque ripple of OSRMs under traditional excitation modes, the torque ripple suppression method based on step current excitation was also studied. The experiment design, including motor start-up control, speed control, and torque ripple reduction, are presented to verify the system torque ripple mitigation method.

Keywords: outer-rotor switched reluctance motor (OSRM); wheel hub motors; speed control; torque ripple; field current (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: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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