Optimization and Comparison of Novel E-Core and C-Core Linear Switched Flux PM Machines
Optimization and Comparison of Novel E-Core and C-Core Linear Switched Flux PM Machines
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DOI：
10.1109/tmag.2011.2125977
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发表时间：
2011-03
影响因子：
2.1
通讯作者：
W. Min;J. Chen;Z. Zhu;Yu Zhu;Mengwei Zhang;G. Duan
中科院分区：
文献类型：
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作者：
W. Min;J. Chen;Z. Zhu;Yu Zhu;Mengwei Zhang;G. Duan
直线型平面切换磁通永磁无刷电机在交通、汽车、航空航天等领域具有广阔的应用前景。提出了一种新型的E芯和C芯直线SFPM电机，并在铜损和体积一定的情况下，通过单参数优化，对电机进行了有限元分析。然后，通过遗传算法的全局优化来检验单个参数优化的结果。此外，对所有电机的磁铁厚度和E型铁芯电机的中间齿进行了单独分析。最后，对新型电机的电磁性能进行了分析，并与传统电机进行了比较。它表明，E芯和C芯电机都需要明显更小的磁体体积，因为只需要大约一半的永磁体数量。此外，由于最大的槽面积，C芯电机具有最大的反电动势和力密度，并且E芯电机适合于容错操作，而6/11动子/定子极E芯SFPM电机具有最小的齿槽力。
Linear flat switched flux permanent magnet (SFPM) brushless machines have significant potential for many applications including transportation, automobile and aerospace. Novel E-core and C-core linear SFPM machines are proposed and optimized by individual parameter optimization, when the copper loss and volume is fixed, in this paper by finite element (FE) analysis. Then, the results of the individual parameter optimizations are examined by a global optimization with genetic algorithm. Furthermore, the magnet thickness of all the machines and the middle teeth of the E-core machines are analyzed individually. Finally, the electromagnetic performance of the novel machines are analyzed and compared with the conventional machine. It shows that both E-core and C-core machines require significantly smaller magnet volume since only about half the number of permanent magnets is required. Furthermore, the C-core machines have the largest back-EMF and force density due to the largest slot area, and the E-core machines are suitable for fault-tolerant operations while the 6/11 mover/stator pole E-core SFPM machine has the smallest cogging force.