Fault-tolerant control for nonlinear switched systems with unknown control coefficients and full-state constraints

被引：16
作者：
Li, Yaxin [1 ]
Wu, Libing [1 ]
Hu, Yuhan [1 ]
机构：
[1] Univ Sci & Technol Liaoning, Sch Sci, Anshan 114051, Liaoning, Peoples R China
来源：
INFORMATION SCIENCES | 2022年 / 582卷
基金：
中国国家自然科学基金;
关键词：
Nonlinear switched systems; Unknown control coefficients; Full-state constraints; Fault-tolerant control (FTC);
D O I：
10.1016/j.ins.2021.10.033
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper investigates the adaptive fault-tolerant control problem for a class of uncertain nonlinear switched systems with unknown control coefficients, full-state constraints and actuator failures. To surmount the design difficulty from full-state constraints, we construct the switched barrier Lyapunov function mechanism. At the same time, the lower bound of unknown control coefficients is introduced to solve the problem of unknown control coefficients. Meanwhile, the trouble caused by actuator failures is compensated by switched controller and adaptive law. Furthermore, the tracking error asymptotically converges to zero is guaranteed and all signals in the closed-loop system are bounded. In addition, the full-state constraints are not violated. Finally, the effectiveness of the proposed approach is verified by simulation examples. (c) 2021 Elsevier Inc. All rights reserved.
引用
收藏
页码：750 / 766
页数：17
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