脉振高频电压注入SPMSM无位置传感器控制的估计误差分析与抑制方法  

Analysis and Compensation of Position Estimation Error in SPMSM Sensor-less Control Based on High Frequency Pulsating Voltage Injection

作　　者：刘兵[1] 周波[1] LIU Bing;ZHOU Bo(Jiangsu Key Laboratory of New Energy Generation and Power Conversion（Nanjing University of Aeronautics and Astronautics）,Nanjing 210016,Jiangsu Province,China)

机构地区：[1]江苏省新能源发电与电能变换重点实验室(南京航空航天大学)

出　　处：《中国电机工程学报》2018年第14期4232-4241,共10页Proceedings of the CSEE

基　　金：高等学校博士学科点专项科研基金(20123218130002);中央高校基本科研业务费专项资金(NP2015205)~~

摘　　要：在基于脉振高频电压注入法的表贴式永磁同步电机无位置传感器控制中,位置检测精度是十分重要的。首先理论分析电机参数不对称及电流检测误差等非理想因素所导致的位置检测误差,给出这些误差的具体表达式,并进行仿真验证;其次提出一种新型位置观测器结构,利用全通滤波器构成自适应滤波模块提取高频分量并消除上述谐波误差,引入滤波参数自适应调整算法和误差前馈补偿来改善观测器的动态性能;最后对所提方法进行实验验证。Position estimation precision is of great importance in sensor-less SPMSM control based on high frequency pulsating voltage injection. Firstly, the position estimation errors caused by some non-ideal factors such as motor parameter asymmetry and current detection error were theoretically analyzed. Expressions of the errors were given. Simulations verified the above analysis. Secondly, a novel position observer was proposed in which all-pass filters were used to extract high frequency signal and to eliminate harmonic error. Parameter adaptive control and error feed-forward control were adopted to improve the dynamic performance of the position observer. Lastly, the proposed method was verified by experiments.

关 键 词：位置估计精度 电机参数不对称 全通滤波器 高频电压注入 

分 类 号：TM351[电气工程—电机]