Optimal Study of a High Specific Torque Vernier-type Axial-flux PM Machine with Two Different Stators and a Single Winding
Optimal Study of a High Specific Torque Vernier-type Axial-flux PM Machine with Two Different Stators and a Single Winding
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DOI：
10.1109/ecce44975.2020.9235901
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
M. G. Kesgin;Peng Han;N. Taran;D. Ionel
中科院分区：
文献类型：
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作者：
M. G. Kesgin;Peng Han;N. Taran;D. Ionel
本文介绍了游标式轴向磁通永磁电机的优化研究，它具有一个高极性的辐条式永磁转子，绕组定子与线圈数少，和一个成型的定子。两个定子都有异形齿，以增强转子PM阵列和定子绕组之间的磁相互作用，从而产生扭矩。与两个绕线定子的拓扑结构相比，所研究的拓扑结构的总轴向长度较小，预计更适合轴向空间有限的应用。这两种拓扑结构的优化，通过3维（3D）有限元分析（FEA）的组合设计的实验（DOE）为基础的灵敏度分析和代理辅助多目标差分进化（DE）算法。影响这两个目标的关键因素，确定了总的活性材料成本和总的电磁损耗。优化结果进行了介绍和比较，提供了实用的指导方针，优化设计和操作这样的机器。还讨论了制造方面及其对电磁性能的影响。
This paper presents the optimal study of a verniertype axial-flux permanent-magnet (AFPM) machine, which has a high-polarity spoke-type PM rotor, a wound stator with a low number of coils, and a profiled stator. Both stators have profiled teeth to enhance the magnetic interaction between the rotor PM array and stator windings for torque production. Compared to the topology with two wound stators, the studied one has a smaller total axial length and is expected more suitable for applications where the space is limited in axial direction. Both topologies are optimized through 3-dimensional (3D) finite element analysis (FEA) by the combined design of experiments (DOE) based sensitivity analysis and surrogate-assisted multiobjective differential evolution (DE) algorithm. Key factors affecting the two objectives, i.e., total active material cost and total electromagnetic loss, are identified. The optimization results are presented and compared, providing practical guidelines for the optimal design and operation of such machines. The manufacturing aspects and their impacts on the electromagnetic performance are also discussed.