Adaptive fuzzy fixed-time control for uncertain switched nonlinear systems with non-symmetrical dead-zone

被引：0

作者：

Liu, Shuo ^{[1
]}

Zhang, Huaguang ^{[1
]}

Pang, Hongbo ^{[2
]}

机构：

[1] State Key Laboratory of Synthetical Automation for Process Industries Northeastern University, Northeastern University, Liaoning, Shenyang,110819, China

[2] College of Science, Liaoning University of Technology, Jinzhou,121001, China

来源：

Fuzzy Sets and Systems | 2025年 / 498卷

基金：

中国国家自然科学基金;

关键词：

Adaptive control systems - Backstepping - Closed loop control systems - Dead zones - Feedback control - Fuzzy control - Lyapunov functions - Lyapunov methods - Nonlinear control systems;

D O I：

10.1016/j.fss.2024.109119

中图分类号：

学科分类号：

摘要：

This paper addresses fuzzy adaptive fixed-time tracking control problem for uncertain switched nonlinear systems with non-symmetrical dead-zone, even if the tracking control problem for subsystems is not solvable. A fixed-time stability criterion for switched nonlinear systems using MLF(multiple Lyapunov functions) method is presented. Then, it is applied to fixed-time tracking control of uncertain strict-feedback switched nonlinear systems. The design methods of fuzzy adaptive feedback controllers and a state-dependent switching law are given to achieve the boundedness of all the signals of the resulting closed-loop system and the fixed-time output tracking control. Nonsymmetrical dead-zone model is used to estimate an adaptive factor through less parameters, which related to fixed-time tracking control for the uncertain switched nonlinear systems. Two examples are given to verify the effectiveness of the proposed design method. © 2024

引用

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