This article proposes a modular asymmetrical permanent magnet-assisted synchronous reluctance machine (PMa-SynRM) combining segmented stator and distributed winding. Meanwhile, an analytical model is investigated for the modular PMa-SynRM, considering the effects of stator slots and flux gaps (FGs). First, the rotor magnetomotive force (MMF) generated by permanent magnets and stator MMF are analyzed by combining the magnetic equivalent circuit (MEC) and conformal mapping. Moreover, an armature reaction magnetic field model is presented considering the influence of the shifted end slots on the winding factor. Besides, the torque of the modular PMa-SynRM is calculated under asymmetrical rotor poles. Finally, a modular PMa-SynRM prototype is manufactured, and the comparison conclusion is validated by the finite-element method (FEM) and experimental results.

中文翻译：

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电动汽车定子模块化非对称设计PMa-SynRM的转矩计算

本文提出了一种分段定子和分布式绕组相结合的模块化不对称永磁辅助同步磁阻电机（PMa-SynRM）。同时，考虑了定子槽和磁通间隙（FG）的影响，对模块化PMa-SynRM的分析模型进行了研究。首先，通过将磁等效电路（MEC）与保形映射相结合，分析了由永磁体和定子MMF产生的转子磁通势（MMF）。此外，提出了电枢反应磁场模型，其中考虑了位移的端槽对绕组系数的影响。此外，模块化PMa-SynRM的扭矩是在不对称转子磁极下计算的。最后，制造出模块化的PMa-SynRM原型，