单边直线感应电动机直接推力控制方法研究  

Research of Direct Thrust Control Method for Single-Sided Linear Induction Motor

作　　者：易一鹏[1] 庄圣贤[1] 周志超[1] 程远银[1] 

机构地区：[1]西南交通大学,四川成都610031

出　　处：《微特电机》2011年第3期48-51,共4页Small & Special Electrical Machines

摘　　要：短初级长次级单边直线感应电动机的初级在进入和离开次级导体板时会产生涡流,引起气隙磁场畸变,造成损耗,严重影响电机的运行性能。通过量化体现动态纵向边缘效应的影响,得出直线感应电动机等效电路模型。根据直接转矩控制原理,建立了在不考虑和考虑边缘效应影响下的直线感应电动机直接推力控制系统模型,按照已知参数进行仿真。仿真说明该方法在直线感应电动机控制上取得了良好的控制性能。The movement of a short-primary long-secondary single-sided linear induction motor causes eddy currents in the secondary conductor sheet at the entry and the exit of the primary core,resulting in distortion of flux and serious influences on performance of the linear induction motor（LIM）.In this paper,an equivalent circuit of the linear induction motor was developed by quantifying its dynamic longitudinal edge effect.Then,simulation models of the LIM with and without consideration of the edge effect were presented,based on the proposed equivalent circuit according to the principle of direct thrust control.By simulation,the suggested scheme is proved to be an effective method for LIMs.

关 键 词：边缘效应 直线感应电动机 直接推力控制 

分 类 号：TM359.4[电气工程—电机]