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Design and manufacturing considerations of flux-switching permanent magnet motors for mass productions used in EVs and HEVs

机译:电动汽车和混合动力汽车中用于批量生产的磁通量开关永磁电动机的设计和制造注意事项

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Published researches on flux-switching permanent magnet (FSPM) motors are focused on the analysis methods of electromagnetic performance, optimization design of lamination dimensions, combinations of stator slots and rotor poles, different kinds of field-excitations, and mechanical stability, etc. However, the manufacturing considerations for mass productions and their influences on the electromagnetic performances of FSPM motors, especially for the applications of electric vehicles (EVs) and hybrid electric vehicles (HEVs), have not been covered in previous works, which instead, are the main contributions of this paper. The complex stator structure of FSPM motors give challenges not only on mass production, but also on the cooling systems, since the permanent magnets (PMs) are surrounded by concentrated armature coils which contain the main heat source. Hence, the modular manufacturing methods are proposed and investigated. Then, a water-cooling system and the idea of an improved real time control scheme taking into account temperature variations are proposed and implemented. Moreover, inaccurate concentricity problems and unbalanced radial forces on rotor are also introduced considering the EVs/HEVs applications.
机译:已发表的有关磁通转换永磁(FSPM)电动机的研究集中在电磁性能的分析方法,叠片尺寸的优化设计,定子槽和转子磁极的组合,不同种类的励磁以及机械稳定性等方面。 ,以前的工作并未涵盖大规模生产的制造注意事项及其对FSPM电机的电磁性能的影响,尤其是对于电动汽车(EV)和混合动力电动汽车(HEV)的应用,这是主要的本文的贡献。 FSPM电动机的复杂定子结构不仅在批量生产方面而且在冷却系统上都面临挑战,因为永磁体(PM)被包含主要热源的集中电枢线圈包围。因此,提出并研究了模块化制造方法。然后,提出并实现了一种水冷却系统以及一种考虑温度变化的改进的实时控制方案的思想。此外,考虑到电动汽车/混合动力汽车的应用,还引入了不正确的同心度问题和作用在转子上的径向力不平衡的问题。

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