By incorporating the merits of partitioned stator and flux modulation techniques, the partitioned stator flux modulation motors featuring high torque, have attracted much attention. This paper investigates four partitioned stator flux modulation motors with different types of PM arrays, including surface-mounted type, consequent-pole type, Halbach-array type, and half-Halbach type. The influences of key parameters on the average electromagnetic torque is conducted and compared. Then, based on the optimal designs, four motors are compared in terms of magnetic field distribution, back-electromotive force, torque characteristics, loss and overload ability. The result reveals that the half-Halbach motor is capable of utilizing more PM to improve electromagnetic torque. Also, the consequent-pole motor achieves the highest torque per PM usage. In addition, performance comparison under the same PM usage is carried out. The result shows that the half-Halbach motor not only exhibits the highest average torque but also achieves the highest PM utilization. Last, the prototype of half-Halbach motor is built for experimental verification.

中文翻译：

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具有不同永磁体阵列的分区定子磁通调制电动机的比较研究

由于结合了分隔定子和磁通调制技术的优点，具有高转矩的分隔定子磁通调制电动机备受关注。本文研究了四种带有不同PM阵列类型的分区定子磁通调制电动机，包括表面安装型，结果极型，Halbach阵列型和Half-Halbach型。进行并比较了关键参数对平均电磁转矩的影响。然后，基于最佳设计，比较了四个电动机的磁场分布，反电动势，转矩特性，损耗和过载能力。结果表明，半哈尔巴赫电机能够利用更多的PM来改善电磁转矩。同样，后极电机在每PM使用中实现最高扭矩。另外，在相同的PM使用情况下进行性能比较。结果表明，半哈尔巴赫电机不仅表现出最高的平均转矩，而且实现了最高的PM利用率。最后，半哈尔巴赫电机的原型用于实验验证。