Fixed-Time Stabilization of a Class of Strict-Feedback Nonlinear Systems via Dynamic Gain Feedback Control

作     者：Chenghui Zhang Le Chang Lantao Xing Xianfu Zhang Chenghui Zhang;Le Chang;Lantao Xing;Xianfu Zhang

作者机构：IEEE the School of Control Science and EngineeringShandong UniversityJinan 250012China the School of Aeronautics and AstronauticsShanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《IEEE/CAA Journal of Automatica Sinica》 (自动化学报（英文版）)

年 卷 期：2023年第10卷第2期

页      面：403-410页

核心收录：

学科分类：0711[理学-系统科学] 07[理学] 08[工学] 081101[工学-控制理论与控制工程] 0811[工学-控制科学与工程] 071102[理学-系统分析与集成] 081103[工学-系统工程] 

基　　金：supported by the National Natural Science Foundation of China(61821004 U1964207 20221017-10) 

主　　题：Dynamic gain feedback control fixed-time stabilization strict-feedback nonlinear system 

摘      要：This paper presents a novel fixed-time stabilization control(FSC)method for a class of strict-feedback nonlinear systems involving unmodelled system *** key feature of the proposed method is the design of two dynamic ***,a set of auxiliary variables is first introduced through state *** variables combine the original system states and the two introduced dynamic parameters,facilitating the closed-loop system stability ***,the two dynamic parameters are delicately designed by utilizing the Lyapunov method,ensuring that all the closed-loop system states are globally fixed-time *** with existing results,the“explosion of complexityproblem of backstepping control is ***,the two designed dynamic parameters are dependent on system states rather than a time-varying function,thus the proposed controller is still valid beyond the given fixedtime convergence *** effectiveness of the proposed method is demonstrated through two practical systems.