基于传热反问题的异步电机定子温升分析  

Temperature Rise Estimation in Squirrel-Cage Induction Motor Based on Inverse Heat Conduction Analysis

作　　者：刘慧开[1] 杨立[1] 王艳武[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学307教研室,武汉430033

出　　处：《电子器件》2006年第4期1178-1181,1186,共5页Chinese Journal of Electron Devices

摘　　要：分析和研究电机的热模型对电机设计和运行中的维护都是十分重要的。建立了异步电机定子绕组温升的红外检测传热反问题三维计算模型,通过使用红外手段测量电机表面若干离散点的温度,然后利用导热反问题中的L-M方法可以确定定子铁心内部各部分的温升情况,从而判断电机的运行温升是否正常。计算结果对测量误差具有较好的抗干扰性。当测量误差达到0.2℃时,绕组平均温度的计算误差仅为1.82%。Thermal study is essential for induction motor＇s design and maintenance. The 3D inverse heat transfer calculation model of squirrel-cage induction motor is presented. Through inspecting motor＇s exterior temperature rise by infrared thermal instrument, the model can give its inner temperature rise by L-M inverse conduction analysis method. This can be used to judge whether the motor is running well. With little errors of measurements, the calculation results can satisfy engineering need well. When measurement errors reach 0. 2 ℃, the computing error of stator windings is only 1.82%

关 键 词：异步电机 定子 红外检测 导热反问题 有限体积法 

分 类 号：TM312[电气工程—电机]