In this paper, an exterior-rotor direct-drive electric bicycle (E-Bike) switched reluctance motor has been designed, based on the performance parameters and dimensional constraints of a commercially available permanent magnet e-bike motor. Motor dimensions have been adjusted to find the best balance between power factor and motor efficiency. The efficiency maps for different rotor pole configurations are compared for 3-phase SRMs with 12 stator poles. The firing angles for each efficiency map operating point are optimized using multi-objective Genetic Algorithm optimization. During the design process, several design parameters have been evaluated and their effects have been investigated. The final design characteristics of the 12/16 SRM e-bike motor are validated experimentally.

中文翻译：

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外转子直驱电动自行车开关磁阻电机的设计

在本文中，基于市售永磁电动自行车电机的性能参数和尺寸限制，设计了一种外转子直驱电动自行车（E-Bike）开关磁阻电机。电机尺寸已经过调整，以找到功率因数和电机效率之间的最佳平衡。比较了具有 12 个定子极的 3 相 SRM 的不同转子极配置的效率图。使用多目标遗传算法优化来优化每个效率图操作点的触发角。在设计过程中，对几个设计参数进行了评估，并研究了它们的影响。12/16 SRM 电动自行车电机的最终设计特性经过实验验证。