永磁同步电机转子位置辨识研究  

Study on Rotor Position Identification of Permanent Magnet Synchronous Motor

作　　者：王磊[1] 叶生文[2] 谷善茂[2] 孙海萌[2] 

机构地区：[1]河南煤业化工集团,河南永城476600 [2]中国矿业大学,江苏徐州221008

出　　处：《电力电子技术》2010年第3期35-37,共3页Power Electronics

基　　金：江苏省科技成果转化专项资金资助项目(BA2008029)~~

摘　　要：传统脉振高频电压信号注入法在估计永磁同步电机(Permanent Magnet Synchronous Motor,简称PMSM)转子位置时,因无法辨识转子N/S极而存在位置估算可能相反的问题。利用电机磁场的饱和效应,提出了一种新型转子位置辨识方法,通过分析包含转子位置误差信息的二次高频电流分量,对转子永磁体磁极极性进行判别,结合传统方法,准确辨识出转子位置。对一台凸极式PMSM进行了转子位置估计实验,验证了该方法的有效性。The estimation result of the rotor position for permanent magnet synchronous motor（PMSM） maybe reverse with traditional pulsing high-frequency voltage signal injection method,since this method cannot recognize N/S rotor polarity.A new method is proposed to identify rotor position based on motor saturation effect.N/S polarity is distinguished by analyzing the second high-frequency current component with rotor position error information,and then rotor position can be easily obtained.The experiment is implemented on a PMSM with salient pole.The experimental results verify the proposed approach,and it achieves the valid rotor position polarity identification.

关 键 词：永磁同步电机 转子位置辨识 饱和效应 

分 类 号：TM351[电气工程—电机]