This paper investigates the electromagnetic force and vibration characteristics of a dual-stator consequent-pole hybrid excitation (DSCPHE) motor for electric vehicles. Firstly, the topology and operation principle of the DSCPHE motor are introduced. Subsequently, the temporal and spatial harmonic characteristics of airgap flux and electromagnetic force are derived and analyzed theoretically. The influences of circumferential-segmented winding, consequent-pole rotor, and excitation modes on radial force harmonics are investigated by finite element analysis (FEA). The vibration behaviors of the DSCPHE motor are investigated by the multi-physics FEA model based on mode superposition method. The radial force harmonics that dominate the motor vibration are analyzed. Finally, the DSCPHE motor prototype is built and tested. The motor vibration behaviors are experimentally measured and compared with an interior permanent-magnet synchronous motor (IPMSM) to validate the theoretical results. This work will contribute to the vibration suppression and optimization of the DSCPHE motor.

中文翻译：

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电动汽车双定子交替极混合励磁电机电磁力与振动研究


本文研究了电动汽车用双定子交替极混合励磁 (DSCPHE) 电机的电磁力和振动特性。首先介绍了DSCPHE电机的拓扑结构和工作原理。随后，对气隙磁通和电磁力的时空谐波特性进行了理论推导和分析。通过有限元分析（FEA）研究了圆周分段绕组、交替极转子和励磁模式对径向力谐波的影响。采用基于模态叠加法的多物理场有限元模型研究了DSCPHE电机的振动行为。分析了主导电机振动的径向力谐波。最后，构建并测试了 DSCPHE 电机原型。通过实验测量电机振动行为，并与内置永磁同步电机 (IPMSM) 进行比较，以验证理论结果。这项工作将有助于 DSCPHE 电机的振动抑制和优化。