Finite-time adaptive dynamic surface fault-tolerant control for nonlinear systems

被引：1
|
作者：
Li Y.-S. [1 ]
Chen M. [1 ]
Wang H.-Q. [2 ]
Peng K.-X. [3 ]
机构：
[1] School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan, Liaoning
[2] College of Mathematical Sciences, Bohai University, Jinzhou, Liaoning
[3] School of Automation and Electeical Engineering, University of Science and Technology Beijing, Beijing
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2022年 / 39卷 / 08期
基金：
中国国家自然科学基金;
关键词：
dynamic surface control; fault-tolerant control; finite-time control; sensor faults; strict-feedback nonlinear systems;
D O I：
10.7641/CTA.2022.11039
中图分类号：
学科分类号：
摘要：
A finite-time adaptive dynamic surface fault-tolerant control strategy is proposed for a class of strict-feedback nonlinear systems with sensor faults. The sensor faults considered include: fixed deviation fault, drift fault, precision decline and failure fault. Based on the backstepping method, the fuzzy logic systems are used to deal with the unknown functions in the model. The significant advantage of our proposed strategy is to ensure that the system is semi-globally practically finite-time stable at the origin regardless of failures by using finite-time theory, fault-tolerant control, fuzzy logic control and dynamic surface control, and the actual output signal of the system is guaranteed to track a desired signal in finite time, and the tracking error converges to a small neighborhood of the coordinate origin. Moreover, the complex calculation problem, which exists in the traditional backstepping method, is overcome by using the dynamic surface control. Finally, the effectiveness of the proposed scheme is proved by a simulation example. © 2022 South China University of Technology. All rights reserved.
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页码：1489 / 1496
页数：7
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