微特电机 ›› 2018, Vol. 46 ›› Issue (4): 22-25.doi: 1004-7018-46-4-22-25

• 设计分析 • 上一篇    下一篇

基于格林函数的永磁同步电机瞬态温度计算方法

彭润泽1,张琪1,黄苏融1,刘朋鹏1,郭建文2   

  1. 1. 上海大学,上海 200072
    2. 上海大郡动力控制技术有限公司,上海 201114
  • 收稿日期:2017-01-13 出版日期:2018-04-28 发布日期:2018-04-28
  • 作者简介:彭润泽(1991—),男,硕士研究生,主要从事永磁电机温度场仿真技术研究。

Calculation for Transient Temperature of Permanent Magnet Synchronous Motor Based on Green Function

PENG Run-ze1, ZHANG Qi1, HUANG Su-rong1, LIU Peng-peng1, GUO Jian-wen2   

  1. 1. Shanghai University,Shanghai 200072,China
    2. Shanghai Dajun Technologies Inc.,Shanghai 201114,China
  • Received:2017-01-13 Online:2018-04-28 Published:2018-04-28

摘要:

提出了一种基于格林函数的水冷式永磁同步电机瞬态温度场半解析计算的方法。它利用有限元法求解热传导方程局部某一点或者部件的响应函数,然后通过解析公式求得它们的瞬态温升。该方法兼备了有限元仿真的准确性和解析法的快速性。还考虑了电机不同工况对响应函数的影响。以一台48槽8极的水冷式永磁同步电机为例,分别将格林函数法计算结果与有限元仿真结果、试验数据进行比较,吻合度较好,从而验证了该方法的有效性。

关键词: 永磁同步电机, 瞬态温度, 格林函数, 有限元法

Abstract:

Based on Green’s function method, a semi-analytical method was proposed for calculating transient temperature field of water-cooled permanent magnet synchronous motor (PMSM). The numerical solutions of heat transfer function was calculated via finite-element analysis (FEA) simulation and hence these numerical solutions were used by analysis formula. The method combined advantages of FEA method and analytical method. The working condition was also taken into consideration. At last, the proposed method was used for calculating transient temperature of 48-slot-8-pole PMSM and validated via FEA method and test data.

Key words: permanent magnet synchronous motor (PMSM), transient temperature, green function, FEA method

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