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
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