电工技术学报2016，Vol.31Issue(23)：63-69,7.
基于相电流正负序分量相角差的高精度内置式永磁同步电机转子初始位置检测方法
High-Precision Estimation Method of Initial Rotor Position for IPMSM Based on Phase Difference of Positive and Negative Sequence Current Component
摘要
Abstract
On the basis of the research on static initial position detection technology of interior permanent magnet synchronous motor(IPMSM),a new high-precision method based on high-frequency signal injection is suggested.In the proposed method,a high-frequency rotating voltage was superimposed in the control voltage first,then the high-frequency current component was obtained by band-pass filtering of the three-phase current signal,and the positive and negative sequence components of high-frequency current response were separated by using synchronous rotating coordinate transformation,the phase of positive and negative sequence components of the three-phase high-frequency current response was extracted by the least square algorithm,the rotor position was obtained by using the difference of arbitrary phase current of positive and negative sequence components phase.Finally the NS poles was distinguished by using motor magnetic saturation effect.The method has high-precision detection accuracy,and the average detection error is about 1.73 degrees(electric angle).The experimental results show the correctness of the proposed method.关键词
内置式永磁同步电机/转子初始位置/高频信号注入/最小二乘拟合Key words
Interior permanent magnet synchronous motor/initial rotor position/high-frequency signal injection/least square algorithm分类
信息技术与安全科学引用本文复制引用
刘景林,鲁家栋..基于相电流正负序分量相角差的高精度内置式永磁同步电机转子初始位置检测方法[J].电工技术学报,2016,31(23):63-69,7.基金项目
陕西省科技统筹创新工程计划项目资助(2013KTCQ01-20,2016KTCQ01-49). （2013KTCQ01-20,2016KTCQ01-49）
