电子与封装2024，Vol.24Issue(8)：119-124,6.DOI:10.16257/j.cnki.1681-1070.2024.0090
基于改进滑模观测器的永磁同步电机无传感器控制
Sensorless Control of Permanent Magnet Synchronous Motor Based on Improved Sliding-Mode Observer
摘要
Abstract
Aiming at the problems of system chattering and large errors in rotational speed and position of traditional sliding-mode observer(SMO)algorithm for sensorless controlled permanent magnet synchronous motor,an improved SMO algorithm is proposed.The estimated back electromotive force feedback is introduced,the saturation function is used instead of the switching function,and the variable reaching rate is used instead of the fixed sliding mode gain.The reliability of the system is verified by Lyapunov method,and the accurate rotor position and rotational speed information are obtained by phase-locked loop(PLL).Finally,Simulink is used to build a simulation model,and related experiments are carried out.The simulation and experimental results show that the improved algorithm's control performance is superior.关键词
滑模观测器/永磁同步电机/无传感器/抖振/反电动势反馈Key words
sliding-mode observer/permanent magnet synchronous motor/sensorless/chattering/back electromotive force feedback分类
信息技术与安全科学引用本文复制引用
许卫,贾洪平..基于改进滑模观测器的永磁同步电机无传感器控制[J].电子与封装,2024,24(8):119-124,6.基金项目
江苏高校优势学科建设工程(三期)项目(PAPD-2018-87) （三期）
