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Indexed by:期刊论文

Date of Publication:2012-04-01

Journal:CIRCUITS SYSTEMS AND SIGNAL PROCESSING

Included Journals:SCIE、EI、Scopus

Volume:31

Issue:2

Page Number:539-553

ISSN No.:0278-081X

Key Words:Switched stochastic systems; Average dwell time; Sliding mode control; Mean-square exponential stability

Abstract:This paper investigates the problem of sliding mode control (SMC) for uncertain switched stochastic system with time-varying delay. The system under consideration is concerned with the stochastic dynamics and deterministic switching laws. An integral sliding surface is constructed and the stable sliding mode is derived. A sufficient condition for mean-square exponential stability of the sliding mode is developed under a class of switching laws based on the average dwell time method. Variable structure controllers are designed to guarantee the existence of the sliding mode from the initial time. An illustrative example is used to demonstrate the effectiveness of the proposed scheme.