交通牵引电机主绝缘磁-热-力耦合特性分析  

Magnetic-thermal-mechanical Coupling Characteristics of Main Insulation of Traffic Traction Motor

作　　者：曹秋敏 张帮伟 张海军 CAO Qiumin;ZHANG Bangwei;ZHANG Haijun(Tai’an City Transportation Bureau,Tai’an 271000,China;School of Automotive and Traffic Engineering,Hubei University of Arts and Science,Xiangyang 441053,China)

机构地区：[1]泰安市交通运输局,山东泰安271000 [2]湖北文理学院汽车与交通工程学院,湖北襄阳441053

出　　处：《湖北文理学院学报》2024年第8期5-10,共6页Journal of Hubei University of Arts and Science

基　　金：湖北省自然科学基金联合基金项目(2022CFD082)。

摘　　要：绝缘是轨道交通牵引电机的关键组成部件之一。针对电磁-热-力耦合作用下牵引电机定子端部绝缘的应力状态及变化规律进行研究,运用多物理场耦合有限元方法对电机端部绕组漏磁场、瞬态温度场以及结构应力场进行耦合场数值计算,获得电机端部绕组热损耗分布和绝缘内部应力应变状态,为牵引电机绝缘故障检修与诊断方法研究提供参考。Insulation is one of the key components of rail transit traction motor.In this paper,the stress state and variation law of stator end insulation of traction motor under electromagnetic-thermal-mechanical coupling are studied.The multi-physical field coupling finite element method is used to calculate the leakage magnetic field,transient temperature field and structural stress field of the motor end winding.The heat loss distribution of the motor end winding and the internal stress and strain state of the insulation are obtained,which provides an important reference for the maintenance and diagnosis of traction motor insulation faults.

关 键 词：牵引电机 端部绝缘 多物理场 有限元 

分 类 号：TM351[电气工程—电机]