永磁同步电机拓扑结构对散热性能的影响

微特电机 ›› 2023, Vol. 51 ›› Issue (2): 13-19.

永磁同步电机拓扑结构对散热性能的影响

刘慧娟, 周佳明, 易元元, 宋腾飞

北京交通大学电气工程学院,北京 100044

收稿日期:2022-09-08 出版日期:2023-02-28 发布日期:2023-03-01
作者简介:刘慧娟(1967—),女,博士,教授,研究方向为特种电机设计与多物理场优化技术。周佳明(1996—),男,硕士研究生,研究方向为永磁同步电机多物理场优化。
基金资助:
中央高校基本科研业务费专项资金资助项目(2021YJS159)

Influence of Topological Structure of Permanent Magnet Synchronous Motor on Heat Dissipation Performance

LIU Huijuan, ZHOU Jiaming, YI Yuanyuan, SONG Tengfei

School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China

Received:2022-09-08 Online:2023-02-28 Published:2023-03-01

摘要/Abstract

摘要： 为了探究永磁同步电机拓扑结构变化对电机散热性能的影响,以30 kW电动叉车用水冷型内置式永磁同步电机为例,建立改进的等效热网络模型,并利用电机的有限元温度场模型计算验证其准确性。采用热网络模型,计算不同定转子结构下电机的温度场,分析定子齿宽、定子槽深、永磁体夹角等拓扑结构改变对电机散热性能的影响规律,为永磁同步电机的运行性能优化提供参考。

关键词: 永磁同步电机, 拓扑结构, 有限元, 热网络, 散热性能

Abstract: In order to explore the influence of the topology change of permanent magnet synchronous motor on the heat dissipation performance of the motor, a 30 kW water-cooled built-in permanent magnet synchronous motor was taken as an example to establish an improved equivalent thermal network model, and its accuracy was verified by calculating the finite element temperature field model of the motor. Using the established thermal network model, the temperature field of the motor under different stator and rotor structures was calculated, and the influence of topology changes such as stator tooth width, stator slot depth and permanent magnet angle on the heat dissipation performance of the motor was analyzed, which provided a reference for the optimization of the operating performance of permanent magnet synchronous motor.

Key words: permanent magnet synchronous machine, topology, finite element method, thermal network, heat dissipating performance

中图分类号:

TM351

刘慧娟, 周佳明, 易元元, 宋腾飞. 永磁同步电机拓扑结构对散热性能的影响[J]. 微特电机, 2023, 51(2): 13-19.

LIU Huijuan, ZHOU Jiaming, YI Yuanyuan, SONG Tengfei. Influence of Topological Structure of Permanent Magnet Synchronous Motor on Heat Dissipation Performance[J]. Small & Special Electrical Machines, 2023, 51(2): 13-19.

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