Electromagnetic Considerations for a Six-Phase Switched Reluctance Motor Driven by a Three-Phase Inverter

Martin, R; Widmer, JD; Mecrow, BC; Kimiabeigi, M; Mebarki, A; Brown, NL

doi:10.1109/IEMDC.2015.7409072

Electromagnetic Considerations for a Six-Phase Switched Reluctance Motor Driven by a Three-Phase Inverter

Lookup NU author(s): Dr Richard Martin, Dr James Widmer, Professor Barrie Mecrow, Dr Kia Kimiabeigi

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Abstract

The Switched Reluctance Machine (SRM) offers advantages over other topologies, but low torque density, high torque ripple, and use of a non-standard power converter are limitations. This paper develops a drive configuration which facilitates the operation of a six-phase SRM using a standard three-phase inverter in order to address these limitations. The focus of the paper is an investigation of electromagnetic design aspects of two candidate SRM topologies in this six-phase context for a pure electric or hybrid electric vehicle type application. Advances are made in the understanding of the electromagnetic design of suitable SRMs, and the conventional SRM is demonstrated as the preferred topology through parametric and FEA design studies with reference to a given specification. Initial laboratory test results for a prototype machine are presented in demonstration of this drive concept and verification of the machine design.