期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 57, 期 1, 页码 236-245出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2020.3029995
关键词
Rotors; Stators; Inductance; Reluctance motors; Torque; Design optimization; Converter VA rating; current profile; differential evolution; direct drive; in-wheel motor; optimization; segmented rotor; switched reluctance machine (SRMs)
This article systematically compares the performance of three outer-rotor SRM topologies for in-wheel traction applications, proposes a generalized design optimization framework for SRMs, and validates the effectiveness of the performance prediction method and the proposed optimization approach.
Outer-rotor switched reluctance machines (SRMs) have drawn much attention as promising candidates for in-wheel direct-drive motors of future electric vehicles. This article presents a systematic performance comparison of three outer-rotor SRM topologies for in-wheel traction applications in terms of the specific torque, electromagnetic efficiency, torque ripple, radial force, and mechanical aspects. A generalized design optimization framework for SRMs is proposed to enable the fast evaluation of large numbers of designs generated from the differential evolution by incorporating an analytical current profile estimation into the transient finite element analysis. The relationship between the saliency ratio and converter volt-ampere rating is also discussed. The calculations are then benchmarked with the experimental results from an existing prototype. The effectiveness of the performance prediction method and the proposed optimization approach is validated.
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