端部效应对长初级双边直线感应电机影响研究
Influence of end effect on long primary double-sided linear induction motor
刘希军 1魏麟 1朱新宇 1高丽霞1
作者信息
- 1. 中国民用航空飞行学院 航空工程学院,四川 广汉618307
- 折叠
摘要
针对变极矩直线感应电机极矩的变化,对端部效应亦产生影响,致使合成磁场畸变这一问题,分别采用电磁场理论分析方法和等效电路两种分析方法,根据直线感应电机磁场气隙磁通密度,以及直线感应电机等效电路,推导出了场理论及路理论直线感应电机端部效应参数方程,分析了入端衰减参数、出端衰减参数、行波波长等端部效应参数对电机气隙磁场的影响;对极矩变化型长初级双边直线感应电机进行了建模分析,分析了极矩变化对端部效应参数、电机气隙磁场影响.研究结果表明:极矩的变化对直线电机横向端部效应影响较小,对纵向端部效应影响较大,且随着极矩的增加,纵向端部效应影响逐渐减小.
Abstract
Aiming at the synthetic magnetic field distortion caused by the end effect of the change of the pole pitch on the variable polar dis-tance of the double-sided linear induction motor,the theory of the field theory and the theoretical equation of the end effector of the linear in-duction motor were deduced,according to the magnetic field air gap flux density and the equivalent circuit. The influence of the end effect pa-rameters on the air gap magnetic field of the motor,such as the end attenuation parameter, the end attenuation parameter and the traveling wave wavelength were analyzed by using the electromagnetic field analysis method and the equivalent circuit analysis method respectively. The model of the linear induction motor with varying pole pitch was established and the influence of the change of the pole pitch on the end effect parameters and the air gap magnetic field of the motor were analyzed. The results indicate that the influence of the pole pitch on the lat-eral end is small but is great on the longitudinal end. The pole pitch increases and the effect of the longitudinal end effect decreases.
关键词
长初级双边直线感应电机/行波磁场/端部效应/极矩变化Key words
long primary double-sided linear induction motor/traveling wave magnetic field/end effect/variable polar distance引用本文复制引用
基金项目
民航科技创新引导资金项目(2146905)
出版年
2018
NETL
NSTL
维普
万方数据