电机与控制应用2025，Vol.52Issue(5)：527-539,13.DOI:10.12177/emca.2025.033
基于超螺旋滑模控制的永磁同步电机磁场定向控制研究
Field-Oriented Control of Permanent Magnet Synchronous Motor Based on Super-Twisting Sliding Mode Control
摘要
Abstract
[Objective]In field-oriented control(FOC)system of traditional permanent magnet synchronous motor(PMSM),the speed loop and the stator dq-axis current loops typically adopt proportional integral(PI)control,which results in a significant speed overshoot.Although sliding mode control(SMC)can reduce overshoot,it still suffers from slow dynamic response and significant current ripple.[Methods]To address these issues,this study adopted super-twisting sliding mode control(STSMC)to regulate the speed outer loop and stator dq-axis current inner loop to improve response speed and suppress speed and current ripples,thereby enhancing the dynamic and steady-state performance of the system.Furthermore,to improve system robustness under external load disturbances,an extended state observer(ESO)was designed to observe disturbances.By treating the load as an extended state variable,the proposed method reduced speed recovery time and mitigated speed drop during sudden load torque changes through feedforward compensation,thereby enhancing system robustness.[Results]Simulation results showed that under an operating condition of 1 000 r/min reference speed and 10 N·m step load,compared with speed SMC,the STSMC reduced the speed regulation time by 86.25％,the root mean square error(RMSE)of speed ripple by 95.35％,the d-axis current ripple RMSE by 45.44％,and the q-axis current ripple RMSE by 34.31％.Compared with speed SMC,the STSMC based on ESO(STSMC-ESO)reduced the speed regulation time by 86.25％,the speed ripple RMSE by 95.70％,the d-axis current ripple RMSE by 45.61％,and the q-axis current ripple RMSE by 37.02％.Moreover,under external load disturbances,compared with STSMC,STSMC-ESO reduced the speed drop by 21.81％and the speed recovery time by 90％.[Conclusion]The STSMC-ESO strategy effectively reduces speed overshoot and enhances dynamic response speed.Meanwhile,it suppresses system chattering and significantly reduces speed and current ripples,thus improving steady-state performance of the system.Under external load disturbances,the system can quickly recover speed and maintain relative stability.关键词
永磁同步电机/磁场定向控制/滑模控制/超螺旋滑模控制/扩张状态观测器Key words
permanent magnet synchronous motor/field-oriented control/sliding mode control/super-twisting sliding mode control/extended state observer分类
动力与电气工程引用本文复制引用
李耀华,王自臣,何雨勰,曲含章,王禹涵,王钦政..基于超螺旋滑模控制的永磁同步电机磁场定向控制研究[J].电机与控制应用,2025,52(5):527-539,13.基金项目
长安大学2024年大学生创新训练计划项目(X202410710494)College Students' Innovative Entrepreneurial Training Program of Chang'an University 2024(X202410710494) （X202410710494）
