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论文类型：期刊论文

发表时间：2013-03-01

发表刊物：ASIAN JOURNAL OF CONTROL

收录刊物：SCIE、EI、Scopus

卷号：15

期号：2

页面范围：501-511

ISSN号：1561-8625

关键字：Passivity; passification; switched systems; average dwell time approach

摘要：This paper deals with the problems of passivity and passification for a class of discrete-time switched stochastic systems with time-varying delay. Based on the average dwell time approach, the piecewise Lyapunov function technique, and the free-weighting matrix method, a new Lyapunov functional is proposed and sufficient conditions for mean-square exponential stability and stochastic passivity are developed under average dwell time switching. Moreover, an estimate of state decay can be calculated in terms of linear matrix inequalities (LMIs). Then, the solvability condition for passification is established and the corresponding controller is designed. Two numerical examples are given to show the effectiveness of the proposed methods.