Abstract:In view of the problems of low power density and large torque ripple in conventional switched reluctance machines (SRM), a novel double stator switched reluctance machine (DSSRM) is proposed in this paper. The magnetic field of its internal and external stators has better decoupling characteristics, and the internal and external teeth of the rotor are staggered by a certain mechanical angle to reduce torque ripple. The novel DSSRM proposed has five working modes: inner stator mode, outer stator mode, double stator mode, and the modes of inner and outer stators connected in series and parallel. However, the current conventional power converter structure can no longer meet the functional requirements of the machine designed in this paper, thus a novel power converter is proposed. Then the working modalities of the new power converter under five working modes are analyzed, and the steady and dynamic simulations are carried out. Finally, a 16/18/16 structure prototype is trial-produced and a novel power converter drive system is built. The practical feasibility of its working principle is verified by experiments, which lays a theoretical foundation for the popularization and application of the novel motor in the field of electric vehicle drive system.
闫文举, 陈昊, 刘永强, 廖朔. 一种用于电动汽车磁场解耦型双定子开关磁阻电机的新型功率变换器[J]. 电工技术学报, 2021, 36(24): 5081-5091.
Yan Wenju, Chen Hao, Liu Yongqiang, Liao Shuo. A Novel Power Converter on Magnetic Field Decoupling Double Stator Switched Reluctance Machine for Electric Vehicles. Transactions of China Electrotechnical Society, 2021, 36(24): 5081-5091.
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