西南交通大学学报2025，Vol.60Issue(2)：445-453,9.DOI:10.3969/j.issn.0258-2724.20220793
基于改进Super-Twisting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 Super-Twisting Sliding Mode Observer
摘要
Abstract
In the wide speed range of sensorless control,the traditional super-twisting second-order sliding mode observer algorithm had a problem that the error of rotor position estimation would change with the speed in the permanent magnet synchronous motor(PMSM).In order to improve the control performance of the motor speed and reduce the error of rotor position estimation,an improved sliding mode observer based on hyperbolic function was proposed,and an online identification scheme of stator resistance was designed.A disturbance voltage observer was designed to estimate the distortion voltage caused by the nonlinearity of the inverter on line.Finally,the hardware-in-the-loop test was carried out to verify the feasibility of the scheme.The test results show that the error of position estimation can be reduced by 7.6%,and the accuracy of velocity estimation can be increased by 5.8%.关键词
永磁同步电机/无传感器控制/改进super-twisting算法/定子电阻在线辨识/逆变器非线性补偿Key words
permanent magnet synchronous motor/sensorless control/improved super-twisting algorithm/online identification of stator resistance/nonlinearity compensation of inverter分类
动力与电气工程引用本文复制引用
王涛,黄景春,周行之,金靖..基于改进Super-Twisting滑模观测器的永磁同步电机无传感器控制[J].西南交通大学学报,2025,60(2):445-453,9.基金项目
国家自然科学基金项目(U21A20169) （U21A20169）
四川省自然科学基金项目(2022NSFSC0451) （2022NSFSC0451）
