圆筒型直线感应电动机瞬态温度场计算与分析  

Calculation and Analysis of Transient Temperature Field in Tubular Linear Induction Motor

作　　者：康燕琴[1] 上官璇峰[1] 肖家乐[1] 张松涛[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,焦作454003

出　　处：《微电机》2009年第2期18-21,共4页Micromotors

基　　金：国家自然科学基金项目(60474043);河南省自然科学基金项目(0611010200)

摘　　要：针对圆筒型直线感应电动机的特殊结构,根据热传学理论建立其稳态运行条件下的二维瞬态温度场计算模型,给出求解域内的基本假设及相应的边界条件;考虑瞬态温度场计算时电机绕组端部的影响,分别计算了初级槽部和初级铁心等效单元体的密度以及比热容,在此基础上应用有限元软件Infolytica对其瞬态温度场进行计算,计算结果与实测数据相对比,验证了所建模型的合理性,为圆筒型直线感应电机的温度场计算提供了参考。From the theory of heat transfer, according to the special structure of tubular linear induction motor, the mathematical model of the 2D transient temperature field for the motor in the state of steady electromagnetic field was established, and basic assumptions and boundary conditions of the solved region were presented. For transient heat transfer a novel method to solve the influence of the end turns was put forward and the slot and lamination＇s equivalent specific heat capacities were calculated. Then the thermal field of tubular linear induction motor for short time runs was calculated and analyzed by the finite element software Infolytica. Measurement results showed that the transient temperature field calculation model was reasonable.

关 键 词：直线感应电动机 有限元法 瞬态温度场 

分 类 号：TM346[电气工程—电机]