单边直线感应电机动态最大推力输出的滑差频率优化控制  

Optimum Slip Frequency Control of Maglev Single-sided Linear Induction Motors to Maximum Dynamic Thrust

作　　者：邓江明[1] 陈特放[1] 唐建湘[1] 佟来生[2] 

机构地区：[1]中南大学信息科学与工程学院,湖南省长沙市410075 [2]中国南车集团株洲电力机车有限公司,湖南省株洲市412001

出　　处：《中国电机工程学报》2013年第12期123-130,194,共8页Proceedings of the CSEE

基　　金：中南大学中央高校基本科研业务费专项资金资助(2012zzts021)~~

摘　　要：为了实现单边直线感应电机(single-sided linearinduction motors,SLIMs)的高效动态控制,提出了一种在SLIM运行过程中动态输出最大电磁推力的滑差频率优化控制方法。以SLIM的T型一相等值数学模型为基础,研究了不计及边端效应时,基于恒滑差频率的绝对最大电磁推力控制;为了减缓推力受边端效应影响而衰减的速度,研究了计及边端效应时的相对最大电磁推力变滑差控制策略。结合一台低速磁浮用SLIM,给出了涉及初次级阻抗互感的5个动态参数的离线辨识算法。实验测试表明了所提控制方法的有效性,该方法不仅能细化研究SLIM的电磁推力输出特性,还能为SLIM的滑差优化控制提供参考。To realize a high efficiency dynamic control of single-sided linear induction motors （SLIMs）, a novel method by calculating optimization slip frequencies to maximum dynamic thrust is presented. From the equivalent circuit model （ECM） of SLIM, it analyzed the absolute maximum thrust control using constant slip frequency without considering the end effects; then considering the edge the effect, in order to slow down the drop of thrust, which is deeply affected by the end effects with the increase of motor speed, a variable slip frequency control strategy to output a relative maximum thrust was developed. It also gave a effective identification algoritlun for five dynamic parameters of SLIM involving mutual inductance and impedance of primary and secondary. The effectiveness of the proposed algorithm is verified through the experimental results.

关 键 词：单边直线感应电机 滑差频率 最大推力 边端效应 动态参数辨识 

分 类 号：TM359[电气工程—电机]