摘 要：文章针对一类具有时变性质的受扰线性系统，设计一种可实现干扰抑制的变增益自抗扰控制方法。通过设计时变增益的扩张状态观测器，完成对系统的状态观测和扰动估计。基于状态反馈的控制律完成对总扰动的补偿。最后，通过在 MATLAB/Simulink 中的数值仿真进行了变增益自抗扰控制与线性自抗扰控制的对比实验，仿真结果验证了该文所提方法的有效性。
关键词：时变系统；干扰抑制；扩张状态观测器；自抗扰控制；时变增益
DOI:10.19850/j.cnki.2096-4706.2023.06.004
中图分类号：TP391；TP271 文献标识码：A 文章编号：2096-4706（2023）06-0017-04
Variable-Gain Active Disturbance Rejection Control Method for a Class of Time-Varying Systems
LI Yingguang, CHEN Renyi
(School of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China)
Abstract: In this paper, a variable gain active disturbance rejection control method for interference suppression is designed for a class of perturbed linear systems with time-varying characteristics. By designing an extended state observer with time-varying gain, the state observation and disturbance estimation of the system are completed. Complete the compensation on the total disturbance based on control law of state feedback. Finally, a comparative experiment between variable gain active disturbance rejection control and linear active disturbance rejection control is carried out by numerical simulation in MATLAB/Simulink, and the simulation results verify the effectiveness of the proposed method.
Keywords: time-varying system; disturbance rejection; extended state observer; active disturbance rejection control; time-varying gain
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作者简介：李迎光（1998—），男，汉族，河南驻马店人，硕士研究生在读，研究方向：自抗扰控制；陈仁义（1995—），男，汉族，河南新乡人，硕士研究生在读，研究方向：自适应控制。