大型高压干式潜水电机定子三维温度场有限元分析

摘要

本文根据传热学理论,建立了大型潜水电机定子三维温度场的数学模型,给出了潜水电机导热系数及散热系数的计算方法.应用有限元法对潜水电机定子三维温度场进行分析计算,并将结果与实际测量值进行比较,验证了所述方法的正确性和实用性.最后,对潜水电机采用不同绝缘等级时电机定子温度场进行了数字模拟研究,得出了一些十分有益的结论,对潜水电机设计及其优化工作具有重要的指导意义.%The 3D mathematical model of the stator temperature field over the large submersible motor are developed based on heat transfer theory. The method of calculating the conductivity and thermal coefficient about submersible motor is given. The finite element method is used to calculate the 3D stator thermal field about submersible motor, and the rationality of the thermal field calculation method and the validity of the calculated values are verified by experimental results. The influence of different insulation in the motor stator temperature field are analysed, which could help optimum design of submersible motor in future applications.