Delay-dependent observer-based H∞ finite-time control for switched systems with time-varying delay

被引:114
|
作者
Liu, Hao [1 ]
Shen, Yi [1 ]
Zhao, Xudong [2 ]
机构
[1] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
[2] China Univ Petr, Coll Informat & Control Engn, Qingdao 266555, Peoples R China
关键词
Switched systems; Observer-based control; Time-varying delay; ADT; Finite-time stabilization; AVERAGE DWELL TIME; LINEAR-SYSTEMS; STABILITY; STABILIZATION; MODE;
D O I
10.1016/j.nahs.2012.03.001
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 is concerned with the problem of observer design for switched linear systems with time-varying delay and exogenous disturbances. The attention is focused on designing the full-order observers that guarantee the finite-time bounded and H-infinity finite-time stability of the dynamic augmented system. Based on linear matrix inequalities (LMIs) technology and an average dwell time (ADT) approach, sufficient conditions which ensure the observer-based finite-time bounded and H-infinity finite-time stability are given, respectively. By using a state observer, the memory state feedback controller is designed to finite-time stabilize a time-delay switched system, and the conditions are formulated in terms of delay-dependent LMIs. An example is given to illustrate the efficiency of the proposed methods. (c) 2012 Elsevier Ltd. All rights reserved.
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页码:885 / 898
页数:14
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