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Indexed by:期刊论文

Date of Publication:2009-10-01

Journal:INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL

Included Journals:SCIE、EI、Scopus

Volume:5

Issue:10B,SI

Page Number:3329-3340

ISSN No.:1349-4198

Key Words:Controller failure; Interval time-varying delay; Switched delay system; Exponential stability

Abstract:This paper deals with the problem of controller failure analysis for T-S fuzzy systems with time-varying delays. The T-S fuzzy Systems can be Stabilized by a pre-designed state feedback controller. Our objective is to establish conditions concerning controller failure time and frequency, under which the systems still keep exponentially stable. For this purpose, the systems with controller failures are first formulated as a class of switched delay systems. Next, based on piecewise Lyapunov functional method, exponential stability of such systems is guaranteed by restricting unavailable rate and failure frequency of the controllers. All the results are presented in terms of linear matrix inequalities (LMIs). An example is provided to demonstrate the effectiveness of the proposed approach.