电机与控制应用2017，Vol.44Issue(8)：26-31,42,7.
一种永磁同步电机宽速域无传感器系统的控制策略
A Control Strategy for Permanent Magnet Synchronous Motor Wide Speed Range Sensorless System
摘要
Abstract
An improved sliding mode observer (SMO) was designed to realize sensorless control in wide speed range of permanent magnet synchronous motor (PMSM).A back electromotive force (EMF) observer was used to replace the low pass filter,which avoided the problem of the rotor position information lag.Meanwhile,the feedback value of back EMF were introduced into the calculation of stator current and feedback coefficient according to the variation of rotating speed of the rotor was adaptively adjusted,which reduced the chattering of the system.Thus the rotor position and speed estimation was more accurate in wide speed range.The phase locked loop (PLL) technique was used to suppress the high frequency information to extract the accurate rotor position.Based on the dSPACE rapid control prototype experimental platform,the sensorless control system of static and dynamic experiments were carried out.The results verified the validity of the proposed method.关键词
永磁同步电机/滑模观测器/宽速域/无传感器Key words
permanent magnet synchronous motor (PMSM)/sliding mode observer (SMO)/wide speed range/sensorless分类
信息技术与安全科学引用本文复制引用
刘志宏,杜明星,魏克新..一种永磁同步电机宽速域无传感器系统的控制策略[J].电机与控制应用,2017,44(8):26-31,42,7.基金项目
天津市应用基础与前沿技术研究计划(14JCYBJC18400) （14JCYBJC18400）
