Observer-based adaptive sliding mode control of uncertain switched systems

被引：16
|
作者：
Lin, Luxin [1 ]
Liu, Zhen [1 ]
Kao, Yonggui [2 ]
Xu, Ruiping [3 ]
机构：
[1] Qingdao Univ, Sch Automat, Qingdao 266071, Peoples R China
[2] Harbin Inst Technol, Dept Math, Weihai 264209, Peoples R China
[3] Qingdao Univ, Sch Math & Stat, Qingdao 266071, Peoples R China
来源：
IET CONTROL THEORY AND APPLICATIONS | 2020年 / 14卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Lyapunov methods; closed loop systems; observers; nonlinear control systems; linear matrix inequalities; stability; control system synthesis; adaptive control; asymptotic stability; variable structure systems; motion control; time-varying systems; uncertain systems; state trajectory; predesigned sliding surface; uncertain switched systems; observer-based adaptive sliding mode control scheme; state observer; unmeasured state variables; novel sliding surface; linear matrix inequality technique; Lyapunov stability theory; closed-loop switched system; adaptive reaching motion control law; MARKOVIAN JUMP SYSTEMS; CONTROL DESIGN; DELAY SYSTEMS; ROBUST OBSERVER; HYBRID SYSTEMS; STABILIZABILITY; STABILIZATION; STABILITY;
D O I：
10.1049/iet-cta.2019.0726
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this study, an observer-based adaptive sliding mode control scheme is proposed for a class of uncertain switched systems. A state observer is utilised to estimate the unmeasured state variables, from which a novel sliding surface is provided. Based on linear matrix inequality technique, Lyapunov stability theory and the average dwell time approach, exponential stability of the overall closed-loop switched system is guaranteed by virtue of the proposed control scheme. An adaptive reaching motion control law is then developed to ensure the state trajectory can be driven onto the predesigned sliding surface in finite time. At last, the validity of the proposed method is demonstrated by simulation results.
引用
收藏
页码：519 / 525
页数：7
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