基于动态滑模算法的PMSM无传感器控制策略  

Sensorless Control Strategy of Permanent Magnet Synchronous Motor Based on Dynamic Sliding Mode Algorithm

作　　者：苗敬利[1] 张书华 MIAO Jing-li;ZHANG Shu-hua(School of Information and Electrical Engineering,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038

出　　处：《机械工程与自动化》2022年第6期1-3,6,共4页Mechanical Engineering & Automation

基　　金：河北省自然基金重点项目(E2019402436)。

摘　　要：针对传统滑模控制的永磁同步电机抖振问题,提出了基于动态滑模的永磁同步电机无传感器控制策略。设计了基于指数趋近律和切换函数的控制器,得到了在时间上本质连续的动态滑模控制率并证明了其稳定性。结合反正切函数方法,提取了电机转速和转子位置信息。仿真结果表明:与传统滑模控制器相比,动态滑模控制器有效地降低了电机抖振,增加了系统稳定性。Aiming at the chattering problem of PMSM based on traditional sliding mode control,a sensorless control strategy of PMSM based on dynamic sliding mode is proposed.The controller based on exponential reaching law and switching function is designed.The dynamic sliding mode control rate which is essentially continuous in time is obtained and its stability is proved.Combined with the arctangent function method,the information of motor speed and rotor position is extracted.The simulation results show that compared with the traditional sliding mode controller,the dynamic sliding mode controller effectively reduces chattering and increases system stability.

关 键 词：无传感器控制策略 动态滑模算法 PMSM 

分 类 号：TM351[电气工程—电机]