摘要
针对传统自抗扰控制(Active Disturbance Rejection Control,ADRC)因fal函数在拐点处不平滑、参数整定困难的问题,采用一种平滑性较好的sigfal函数替代扩张状态观测器(Extended State Observer,ESO)中的fal函数,同时采用线性控制律代替非线性误差反馈控制律(Nonlinear States Errorfeed-back,NLSEF),将改进的ADRC应用于永磁同步电机矢量控制系统,并通过Matlab/Simulink进行了仿真实验,仿真结果表明,sigfal函数在拐点处具有更好的平滑性,基于sigfal函数的ADRC在永磁同步电机控制系统中具有良好的响应速度和超调性,抗干扰能力比传统ADRC更好。
In view of the problem that the fal function is not smooth at the inflection point and the parameter setting is difficult in the traditional active disturbance rejection control(ADRC),a sigfal function with good smoothness is used to replace the fal function in the extended state observer(ESO),and a linear control law is used to replace the nonlinear states errorfeed back(NLSEF).The improved ADRC is applied to the vector control system of permanent magnet synchronous motor,and the simulation experiments are carried out by Matlab/Simulink.the simulation results show that the sigfal function has better smoothness at the inflection point.ADRC based on sigfal function has good response speed and overshoot in PMSM control system,and has better anti-interference ability than traditional ADRC.
作者
林立
吕金培
林敏之
LIN Li;LYU Jinpei;LIN Minzhi(Hunan Provincial Key Laboratory of Grids Operation and Control On Multi-power Sources Area Shaoyang University,Shaoyang 42200,Hunan,China;Shaoyang University,College of Electrical Engineering,Shaoyang 42200,Hunan,China;Shaoyang Zishui Technology Co.LTD,Shaoyang 422000,Hunan,China)
出处
《电气传动自动化》
2023年第1期6-9,共4页
Electric Drive Automation
基金
邵阳学院研究生科研创新项目(CX2021SY034)
湖南省自然科学基金项目(2022JJ50186)
湖南省教育厅科学研究项目(NO.20A447)。
关键词
永磁同步电机
自抗扰控制
矢量控制
性能优化
Permanent magnet synchronous motor
Active disturbance rejection control
Vector control
Performance optimization
作者简介
林立(1972-),男,博士,教授,研究方向为电力电子与电力传动。
