基于耦合退磁分析的混合永磁电机的优化设计

doi:10.16731/j.cnki.1671-3133.2026.02.019

现代制造工程 ›› 2026, Vol. 545 ›› Issue (2): 151-156.doi: 10.16731/j.cnki.1671-3133.2026.02.019

• 设备设计/诊断维修/再制造 • 上一篇

基于耦合退磁分析的混合永磁电机的优化设计

陈云云, 陆明杰, 徐雨姗, 李紫茵

扬州大学电气与能源动力工程学院,扬州 225127

收稿日期:2025-06-25 出版日期:2026-02-18 发布日期:2026-03-18
作者简介:陈云云,博士,硕士生导师,副教授,主要研究方向为永磁同步电机设计与控制。E-mail:yychen@yzu.edu.cn

Optimization design of hybrid permanent magnet motor based on demagnetization coupling

CHEN Yunyun, LU Mingjie, XU Yushan, LI Ziyin

College of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China

Received:2025-06-25 Online:2026-02-18 Published:2026-03-18

摘要/Abstract

摘要： 针对混合永磁电机中永磁体的不可逆退磁风险问题,提出并验证了一种以提高抗退磁能力为核心目标的优化设计方案。首先,通过磁路分析明确了此类电机特有的混合永磁体交叉耦合退磁现象,基于对磁密矢量的深入分析揭示了永磁体局部退磁机理,提出了通过改善有效磁通路径这一关键手段增强混合永磁体之间的正向耦合程度。其次,结合多目标遗传算法(Multi-Objective Genetic Algorithm,MOGA)与响应面法中的中心组合设计(Central Composite Design,CCD)对电机进行了多目标优化设计,对比分析了优化前后的电机性能。结果表明,优化后的设计保持了优异的电磁性能,其抗退磁能力也得到了显著提升,充分验证了所提出的基于耦合退磁分析的优化设计方法的可行性和有效性。

关键词: 混合永磁, 磁通路径优化, 铁氧体退磁, 有限元分析, 交叉耦合

Abstract: To address the irreversible demagnetization risk in hybrid permanent magnet motors,an optimization design scheme was proposed and validated with the core objective of enhancing demagnetization withstand capability. Firstly, the unique cross-coupling demagnetization phenomenon of hybrid PM configurations was clarified by magnetic circuit analysis. Through in-depth vector analysis of magnetic flux density,the mechanism of localized PM demagnetization was revealed. A key approach involving improved effective flux paths was introduced to enhance forward coupling between hybrid PMs. Subsequently,Multi-Objective Genetic Algorithm (MOGA) and Central Composite Design (CCD) methodologies were integrated for motor optimization. Comparative analysis demonstrated that while maintaining excellent electromagnetic performance,the optimized design achieves significant improvement in demagnetization resistance. These results fully validate the feasibility and effectiveness of the proposed optimization method based on coupled demagnetization analysis.

Key words: hybrid permanent magnet, flux path optimization, ferrite demagnetization, finite element analysis, cross coupling

中图分类号:

TM351

陈云云, 陆明杰, 徐雨姗, 李紫茵. 基于耦合退磁分析的混合永磁电机的优化设计[J]. 现代制造工程, 2026, 545(2): 151-156.

CHEN Yunyun, LU Mingjie, XU Yushan, LI Ziyin. Optimization design of hybrid permanent magnet motor based on demagnetization coupling[J]. Modern Manufacturing Engineering, 2026, 545(2): 151-156.

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基于耦合退磁分析的混合永磁电机的优化设计

Optimization design of hybrid permanent magnet motor based on demagnetization coupling

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