变极距长初级双边直线感应电机磁场分析  

Analyze of Magnetic Field of Variable Polar Distance of Long Primary Double-sided Linear Induction Motor

作　　者：刘希军 魏麟[1] 朱新宇[1] 刘小涵[1] 

机构地区：[1]中国民用航空飞行学院航空工程学院,四川广汉618307

出　　处：《微电机》2018年第1期23-28,共6页Micromotors

基　　金：民航科技引导资金项目(2146905)

摘　　要：直线感应电机气隙磁场的研究是电机工作性能和设计的重要考虑依据,直线感应电机的气隙是开断不连续直线型气隙,行波磁场由入端向出端方向移动,由于结构不连续性,使得气隙中存在附加磁场。基于直线感应电机的场理论分析,以麦克斯韦方程组为理论分析基础,建立变极矩长初级双边直线感应电机气隙磁场方程。分析研究极矩变化对气隙磁场的影响,分析电机电磁推力特性输出,并对变极矩电机气隙行波磁场的特性进行研究。The study of the air gap magnetic field of the linear induction motor is an important consideration for the motor performance and design. The air gap of the linear induction motor is a discontinuous linear air gap. The traveling magnetic field moves from the input end to the output end. Due to structural discontinui- ties, there is an additional magnetic field in the air gap. Based on the field theory analysis of linear induction motor and the theoretical analysis of Maxwell equations, the air gap magnetic field equation of the variable polar distance of the linear induction motor was established. The influence of the variable polar distance on the magnetic field of the air gap, the output of the electromagnetic thrust characteristic of the motor, and the characteristics of the gap magnetic field of the motor were studied.

关 键 词：长初级双边直线感应电机 变极距 行波磁场 

分 类 号：TM359.4[电气工程—电机]