周期脉冲式直线感应电机定子瞬态温度特性  

Transient Temperature Characteristics of Periodic Pulse-type Linear Induction Motor Stators

作　　者：张育兴[1] 马伟明[2] 陈伯义[3] 张明元[2] 

机构地区：[1]西安交通大学电气工程学院,陕西省西安市710049 [2]舰船综合电力技术国防科技重点实验室(海军工程大学),湖北省武汉市430033 [3]海军工程大学船舶与动力学院,湖北省武汉市430033

出　　处：《中国电机工程学报》2012年第9期86-92,14,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51077129);国家863高技术基金项目(2010AA8091902)~~

摘　　要：采用合理的等效原则,将电机定子的铁心和绝缘层视为一种等效材料,从一维瞬态温度场模型出发,研究了周期脉冲式直线电机定子温度的变化规律,分析了影响其温度衰减时间常数的主要因素;利用瞬态温度场模型的解析结果,提出了瞬态热网络模型结点数目的确定方法,通过该热网络模型能够快速预测定子温度的变化;研究了温度变化对线圈损耗的影响,并利用实验数据验证了计算模型的正确性,为周期脉冲式电机定子温度的分析计算提供了一种简化有效方法。The motor stator iron core and insulation layer were regarded as a kind of equivalent material by means of the reasonable equivalent principle. Starting from the 1-D transient temperature field model, the variation law of temperature in a periodic pulse-type linear induction motor stator was studied. The main factors that had an effect on the time constant of the stator temperature attenuation were analyzed. The determination method about the node number of the transient thermal network model was put forward with the use of the analytic results of the transient temperature field model. The variation of the stator temperature could be quickly predicted through the transient thermal network model. The effect of the temperature variation on the coil loss was considered, and the correction of the calculation model was verified through the test data. This paper may provide a valid simple method for the analysis and calculation of temperature in the periodic pulse-type linear induction motor stator.

关 键 词：电磁发射 直线感应电机 瞬态温度 瞬态热网络 

分 类 号：TM359[电气工程—电机]