永磁同步电机多故障损耗分析与磁热耦合研究

微特电机 ›› 2020, Vol. 48 ›› Issue (10): 24-29.

永磁同步电机多故障损耗分析与磁热耦合研究

许小伟, 杨炎, 肖祎然, 李随

武汉科技大学汽车与交通工程学院,武汉 430065

收稿日期:2020-06-29 出版日期:2020-10-28 发布日期:2020-10-22
作者简介:李永佳(1995—),男,硕士研究生,研究方向为多相感应电机性能分析。
基金资助:
国家然科学基金项目(51975426);武汉市科技计划项目(2019010701011393)

Loss Analysis and Magneto-Thermal Coupling Research of Permanent Magnet Synchronous Motor under Multiple Faults

XU Xiao-wei, YANG Yan, XIAO Yi-ran, LI Sui

Wuhan University of Science and Technology, Wuhan 430065, China

Received:2020-06-29 Online:2020-10-28 Published:2020-10-22

摘要/Abstract

摘要： 为了研究车用永磁同步电机在多故障状态下,电机的定子与磁钢温度场的变化,利用Maxwell建立了电机有限元模型,以不同故障条件下各部分损耗作为温度场热源载荷,与ANSYS Workbench进行联合仿真。利用磁热耦合的方法计算模型,得出损耗变化曲线与定子、磁钢的温度分布图,总结了永磁同步电机多故障类型之间损耗与温升的关系,分析了多故障下永磁同步电机各部件温升的变化。对比电机在多故障条件下各部分温升,总结了多故障条件下电机的温升规律,对电机故障的预防与诊断有一定的参考价值。

关键词: 永磁同步电机, 多故障, 损耗分析, 磁热耦合, 温度场

Abstract: In order to study the change of the temperature field of the stator and the magnetic steel under the multi-fault state of the permanent magnet synchronous motor for vehicles,a motor finite element model was established by using Maxwell,and the loss of each part of the motor under different fault conditions was taken as the heat source value of the temperature field, and then joint simulation with ANSYS Workbench. The change curve of the loss and the temperature distribution diagram of stator and magnetic steel were obtained,using the method of magneto-thermal coupling temperature field to calculate model. The relationship between the loss and the motor temperature rise between different fault types was analyzed,and the influence of different faults on the motor part temperature rise was studied. Comparing the temperature rise of each part of the motor under multiple fault conditions,the temperature rise law of the motor under multiple fault conditions was summarized, which has certain reference value for the prevention and diagnosis of motor faults.

Key words: permanent magnet synchronous motor, multiple faults, loss analysis, magneto-thermal coupling, temperature field

中图分类号:

TM464

许小伟, 杨炎, 肖祎然, 李随. 永磁同步电机多故障损耗分析与磁热耦合研究[J]. 微特电机, 2020, 48(10): 24-29.

XU Xiao-wei, YANG Yan, XIAO Yi-ran, LI Sui. Loss Analysis and Magneto-Thermal Coupling Research of Permanent Magnet Synchronous Motor under Multiple Faults[J]. Small & Special Electrical Machines, 2020, 48(10): 24-29.

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