基于动子附加绕组的隐极式永磁直线同步电动机的-ingentaconnect.pdf

摇 第36卷第4期 煤摇 摇 炭摇 摇 学摇 摇 报 Vol.36摇 No.4摇 摇 2011年 4月 JOURNAL OF CHINA COAL SOCIETY Apr.摇 2011摇 摇 摇 文章编号:0253-9993(2011)04-0701-05 基于动子附加绕组的隐极式永磁直线同步 电动机的功率角测量 高彩霞,王福忠,袁世鹰,张摇 龙 (河南理工大学 电气工程与自动化学院,河南 焦作摇 454000) 摘摇 要:针对隐极式永磁直线同步电动机凸极效应不明显(L 抑L )的特点,提出了基于动子附加高 d q 频绕组的隐极式永磁直线同步电动机的功率角测量新方法。 在对永磁直线同步电动机基本结构和 工作原理分析基础上,推导出了该电机的功率角与动子位置角的关系方程,建立了基于动子附加高 频绕组的动子位置角测量数学公式。 实验表明,该方法能实现包括零速在内全速度范围内永磁直 线同步电动机功率角的测量,具有结构简单、价格低廉、使用方便、响应速度快、测量精度高等优点, 特别适宜于由三相交流永磁直线同步电动机驱动的长行程伺服系统或运输系统。 关键词:动子附加高频绕组;隐极式永磁直线同步电动机;功率角;动子位置角 中图分类号:TM341摇 摇 摇 文献标志码:A The power angle detection for non鄄salient pole permanent magnet linear motor based on the additional high鄄frequency windings of mover GAO Cai鄄xia,WANG Fu鄄zhong,YUAN Shi鄄ying,ZHANG Long (School of Electronic Engineering Automation,Henan Polytechnic University,Jiaozuo摇 454000,China) Abstract:For the indistinctive salient pole effect of non鄄salient pole PMLSM,a new method based on the additional high鄄frequency windings of mover was presented to detect the power anglefor the non鄄salient pole PMLSM.By analy鄄 zing thebasicstructureandworkingprincipleofPMLSM,therelationshipequationbetweenpowerangleandmoverpo鄄 sition angle was derived andthe mover position angle detection mathematicalformulawasobtainedbased onthe addi鄄 tional high鄄frequency windings of mover.The results show that this method can detect the power angle of non鄄salient pole PMLSM in a wide speed range,including zero鄄speed.In addition,the detection system proposed hasthe advanta鄄 ges of simple structure,low cost,high precision and quick response and it is suitable for long stroke servosystem and transpo