牵引电机绝缘系统的温度场分析

Analysis on Temperature Field of Traction Motor Insulation System

建立牵引电机绝缘系统温度场分析的CFD模型,介绍了绝缘材料导热系数测试试样的制作和测试方法,对不同类型的少胶云母带随温度变化的导热系数进行了测试,并使用通用流体计算软件对异步牵引电机绝缘系统的温度场进行了仿真计算,得到了电机整体及绝缘系统的温度场分布图,结果证明定子线圈绝缘层表面温度与线圈内部导线温度差因所处的位置不同而不同,最高温差可到达11℃,这种绝缘系统的温度场分析结果为绝缘结构设计提供了依据。

The CFD model of temperature field analysis of traction motor insulation system is established in this paper. The paper introduced the insulation material coefficient of thermal conductivity test sample production and test methods, and the use of general fluid calculation software for asynchronous traction motor insulation system simulation on temperature field, finally achieved the temperature field distribution of the motor and the insulation system. Results show that the stator coil insulation surface temperature and internal wire coil temperature difference varies because of the position, the highest temperature difference can be reached 11k, the results of temperature field analysis provide a basis for insulation structure design.