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Torque investigation of fractional-slot permanent magnet machines with different winding topology and stator structures

机译：具有不同绕组拓扑和定子结构的分数槽永磁电机的转矩研究

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For fractional-slot PM machines with nonoverlapping windings, the influence of winding topology and the stator structure on torque performances are investigated in this paper. With the help of frozen permeability method, the on-load torque is separated into PM, armature current component and cogging torque, respectively. The major contribution of average torque and the causes of on-load torque ripple are identified by analyzing these components. Since torque performances are closely related to the armature reaction field, the predominant factors, viz. winding arrangement, current amplitude and stator structure, are investigated. It can be concluded that the local saturation of stator yoke due to the interaction between PM and armature reaction affects not only the average torque value but also the torque ripple.
机译：对于不重叠绕组的分数槽永磁电机，研究了绕组拓扑和定子结构对转矩性能的影响。借助冻结磁导率法，将有载转矩分为PM，电枢电流分量和齿槽转矩。通过分析这些因素，可以确定平均转矩的主要贡献以及负载转矩波动的原因。由于扭矩性能与电枢反作用域密切相关，因此主要因素也就是。研究了绕组布置，电流幅度和定子结构。可以得出结论，由于永磁体和电枢反作用力之间的相互作用，定子磁轭的局部饱和不仅影响平均转矩值，而且还影响转矩脉动。

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