Influence of Field Weakening Control on Electromagnetic Force and Electromagnetic Vibration of SPMSMs

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia) Pub Date : 2021-05-24 DOI:10.1109/ECCE-Asia49820.2021.9479373

Shaoxian Chen, S. Ding, Shufeng Shen, Yao Dai, Zhi Yang, Jiayu Zhang

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引用次数: 2

Abstract

A 50kW surface mounted permanent magnet synchronous motor (SPMSM) is used to explore the influence of field weakening control on electromagnetic force and vibration characteristics of SPMSMs. The air gap magnetic flux density was calculated by 2-dimensional (2-D) finite element method (FEM).The Maxwell stress tensor method (MSTM) was employed to analyze the motor's radial and tangential electromagnetic force density. By using the 2-D fast Fourier transformation, the time and spatial harmonics of the radial and tangential electromagnetic force were decomposed. In the meanwhile, vibration characteristics under different phase angles of armature current with field weakening control of the SPMSM were analyzed by the mode superposition method based on a multi-physics model. The results show that the phase angle of the armature current has a significant influence on the electromagnetic excitation force harmonics. It's effective to use the field weakening control to reduce the electromagnetic vibration of SPMSMs. This research will contribute to electromagnetic design and field weakening control strategies of SPMSMs.

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弱磁场控制对永磁同步电动机电磁力和电磁振动的影响

以50kW表面贴装永磁同步电动机为研究对象，探讨了弱磁场控制对表面贴装永磁同步电动机电磁力和振动特性的影响。采用二维有限元法计算气隙磁通密度。采用麦克斯韦应力张量法(MSTM)分析了电机的径向和切向电磁力密度。利用二维快速傅里叶变换，对径向电磁力和切向电磁力的时间和空间谐波进行了分解。同时，采用基于多物理场模型的模态叠加方法，分析了电枢电流不同相位角下弱磁场控制下永磁同步电机的振动特性。结果表明，电枢电流的相位角对电磁力谐波有显著影响。采用弱场控制可以有效地降低永磁同步电动机的电磁振动。该研究将为永磁同步电动机的电磁设计和弱磁场控制策略提供理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)

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