Switched reluctance machines for EV and HEV propulsion: State-of-the-art

This paper overviews the state of the art of switched reluctance machines (SRM) and their potential application in propulsion of electric vehicles (EV) and hybrid electric vehicles (HEV). Three-phase SRM configurations have been advised, in order to reduce the inverter cost, and a relationship between their numbers of stator-poles and rotor-poles have been established. Compared to other machine technologies, SRMs produce more high frequency pure tones (up to 12 kHz) that are prominent and perceived as unpleasant. The poor sound quality of SRMs is holding them from a possible consideration for mass-production in automotive applications.