Disturbance Rejection for Systems with Uncertainties Based on Fixed-Time Equivalent-Input-Disturbance Approach

被引：0
|
作者：
Lu, Qun [1 ,2 ]
Wu, Xiang [3 ]
She, Jinhua [4 ]
Guo, Fanghong [3 ]
Yu, Li [3 ]
机构：
[1] School of Aeronautical Engineering, Taizhou University, Jiaojiang,318000, China
[2] Zhejiang Dafeng Industry Co., Ltd., Hangzhou,315400, China
[3] Zhejiang University of Technology, Zhejiang Provincial United Key Laboratory of Embedded Systems, Hangzhou,310023, China
[4] School of Engineering, Tokyo University of Technology, Tokyo,192-0982, Japan
来源：
IEEE/CAA Journal of Automatica Sinica | 2024年 / 11卷 / 12期
关键词：
This paper presents a fixed-time equivalent-input-disturbance (EID) approach to deal with the problem of robust output-feedback control for perturbed uncertain systems. This method uses the basic structure of the conventional EID approach and treats uncertainties and disturbances as a lumped disturbance on the control-input channel. A fixed-time state observer enables state estimation; which resolves the causality issue in an EID-based control system; is finished in a fixed time. An implicit Lyapunov function; the homogeneity with dilation; the input-to-state stability; and the small-gain theorem are used to analyze the convergence and robustness of the EID-based system with measurement noise. Numerical and experimental results are presented to demonstrate the effectiveness and superiority of the proposed method. © 2014 Chinese Association of Automation;
D O I：
10.1109/JAS.2024.124650
中图分类号：
学科分类号：
摘要：
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页码：2384 / 2395
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