Winding Configurations and Optimal Stator and Rotor Pole Combination of Flux-Switching PM Brushless AC Machines
Winding Configurations and Optimal Stator and Rotor Pole Combination of Flux-Switching PM Brushless AC Machines
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DOI：
10.1109/tec.2009.2032633
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发表时间：
2010-06
影响因子：
4.9
通讯作者：
J. Chen;Z. Zhu
中科院分区：
文献类型：
--
作者：
J. Chen;Z. Zhu
提出了一种简单的分析方法，用于比较磁通切换永磁电机定、转子极数组合的反电动势和电磁转矩。绕组连接和绕组系数的机器具有所有的磁极和交替的磁极缠绕，以及不同的相位数，从2到6，由线圈电动势矢量确定。与传统的分数槽永磁电机集中非重叠绕组分析的差异突出。建立了平衡对称反电势波形的一般条件。结果表明，优化的转子极数应接近定子极数，而转子极数相对较高的电机可以获得较大的转矩。有限元分析和实验验证了分析的正确性。
A simple analytical method is developed to compare the combinations of stator and rotor pole numbers in flux-switching permanent magnet (PM) machines in terms of back electromotive force (EMF) and electromagnetic torque. The winding connections and winding factors of machines having all poles and alternate poles wound, and different numbers of phases, from two to six, are determined by the coil-EMF vectors. Their differences from analyzing the conventional fractional-slot PM machines with concentrated nonoverlapping windings are highlighted. The general conditions are established for balanced symmetrical back-EMF waveform. It shows that the optimized rotor pole number should be close to the number of stator poles, whereas larger torque can be obtained by the machine with relatively higher rotor pole number. The analysis is validated by finite-element analyses and experiment.