基于在线运行条件下的直线感应电机电磁力特性分析

Analysis of Electromagnetic Force Characteristics of the Linear Induction Motor Based on Online Operating Conditions

文章对中低速磁浮列车用直线感应电机电磁力特性相关磁路计算原理进行了分析,建立了电磁计算模型,推导了综合考虑电机横向、纵向边端效应时电机推力和法向力的计算表达式,并结合在线运行条件,分析了气隙、转差频率和电压等对电机推力和法向力的影响。最终,通过试验验证了模型的准确性。

The article analyzes the magnetic circuit calculation principles related to the electromagnetic force characteristics of the linear induction motors used in the medium and low-speed maglev train,establishes the electromagnetic calculation model,derives calculation expressions for the motor's thrust and normal force with consideration of both the lateral and longitudinal edge effects.Combining online operating conditions,the article further analyzes such factors as the motor air gap,slip frequency,and voltage how to influence the thrust and normal force of the motor.Finally,the accuracy of the model is verified by experimentation.