To overcome the disadvantages of traditional switched reluctance machine (SRM) with moderate power/torque density and high torque ripple, this article proposes a novel double-stator SRM (DSSRM) with the inner and outer stators both adopting U-shaped segmental stator structure. By optimizing the polarity distribution of the inner and outer stator magnetic fields, the inner and outer stator magnetic fields are decoupled. Then, the relationships of torque ripple coefficient with the mechanical offset angles of the inner and outer rotor teeth are investigated. To optimize the mechanical offset angle and reduce the torque ripple of the motor, the initial design method is proposed, and five main parameters of the machine are optimized by the finite-element analysis. Then, the static magnetic characteristics and dynamic performance of this novel machine are simulated and analyzed. Finally, a 16/18/18/16 DSSRM is prototyped to validate the above simulation and theoretical analysis.

中文翻译：

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一种用于电动汽车应用的低纹波双模块定子开关磁阻电机的设计

为了克服传统开关磁阻电机（SRM）功率/转矩密度适中、转矩脉动大的缺点，本文提出了一种内外定子均采用U形分段定子结构的新型双定子SRM（DSSRM）。通过优化内外定子磁场的极性分布，实现内外定子磁场去耦。然后，研究了转矩脉动系数与转子内外齿机械偏角的关系。为优化电机的机械偏置角，降低电机转矩脉动，提出了初始设计方法，并通过有限元分析对电机的五个主要参数进行了优化。然后，对该新型电机的静磁特性和动态性能进行了仿真分析。最后，对 16/18/18/16 DSSRM 进行原型设计以验证上述仿真和理论分析。