电动汽车辐条-游标混合转子双定子五相永磁同步电机

M. Muteba, Shanelle N. Foster
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引用次数: 1

摘要

提出了一种用于电动汽车牵引的双定子五相永磁同步电动机,转子为辐条-游标混合转子。所提出的机器可以实现高扭矩密度,高功率因数,并与混合辐条游标型永磁转子宽转速范围运行。第一个设计(初始设计)包括一个有20个槽的外部定子,该定子带有一个四极,五相集中绕组,内部辐条型PM转子由一个磁性轮毂支撑。在第二种设计(2nd design)中,将后者用于容纳一组磁通屏障和附加的pm片,并以游标型配置,从而获得混合转子结构。从第二次设计中,获得提议的机器(提议的设计)。提出的设计配备了第二个内部定子铁芯,也容纳了四极,五相集中绕组。采用二维有限元法(FEM)对三台机器进行了交流磁瞬变分析。评估了不同电磁参数对所提电机牵引性能的影响。有限元分析(FEA)结果证明了该机器的有效性,该机器已将自己定位为电动汽车牵引应用的有力候选者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dual-Stator Five-Phase Permanent Magnet Synchronous Machine with Hybrid Spoke-Vernier Type Rotor for Electric Vehicles
This paper proposes a dual-stator five-phase permanent magnet synchronous motor with hybrid spoke-vernier type rotor for electric vehicles (EVs) traction applications. The proposed machine can achieve high torque density, high-power factor, and wide speed range operation with a hybrid spoke-vernier type PM rotor. The first design (Initial Design) consists of an outer stator having twenty slots that carry a four-pole, five-phase concentrated winding with an inner spoke-type PM rotor supported by a magnetic hub. The latter is utilized in the second design (2nd Design) to house a set of flux barriers and additional pieces of PMs arranged in a vernier type configuration, to obtain a hybrid rotor structure. From the 2nd Design, the proposed machine (Proposed Design) is obtained. The proposed design is equipped with a second inner stator core that also houses a four-pole, five-phase concentrated winding. The three machines were modelled for ac magnetic transient analysis using the 2-D Finite Element Method (FEM). The influence of different electromagnetic parameters on the traction performance of the proposed machine is evaluated. The Finite Element Analysis (FEA) results demonstrate the effectiveness of the proposed machine, which has positioned itself to be a strong candidate in EVs traction applications.
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