Vibration Mitigation in Modular Dual Three-Phase PMSM: Combined Effects of Winding Topology and Rotor Skewing

作者：Yunhan Zhou, Wenxiang Zhao, Jinghua Ji, Shengdao Zhu, Christopher H. T. Lee · 发表于：IEEE Transactions on Industrial Electronics · 年份：2025 · DOI：10.1109/tie.2025.3582690 · 被引用次数：2 · 研究领域：Brake Systems and Friction Analysis、Engineering Applied Research、Vibration Control and Rheological Fluids

This article proposes a novel rotor skewing design by the multiobjective optimization algorithm aimed at mitigating the specific vibration in modular dual three-phase permanent magnet synchronous motors (PMSMs). First, the winding topology of the modular PMSM is introduced. The characteristics of the synthetic magnetomotive force (MMF) are analyzed, revealing the emergence of additional harmonic components in the synthetic MMF. Then, the excitation of the specific vibration by second-order radial force harmonics at two distinct operating points is identified and analyzed. Afterward, the limitations of the conventional rotor skewing method in suppressing the specific vibration are highlighted. To address these challenges, a novel rotor skewing method is proposed. The design framework is detailed, where the objective functions are formulated with respect to the skewing angle. The optimal rotor skewing configuration is determined using the barebones multiobjective particle swarm optimization (BB-MOPSO) algorithm. The targeted specific vibration is significantly mitigated by this approach. Finally, the prototype of a modular dual three-phase 48-slot/8-pole PMSM is manufactured, and several simulated and experimental validations are carried out to corroborate the theoretical findings.