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论文类型：期刊论文

发表时间：2009-10-01

发表刊物：INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL

收录刊物：SCIE、EI、Scopus

卷号：5

期号：10B,SI

页面范围：3329-3340

ISSN号：1349-4198

关键字：Controller failure; Interval time-varying delay; Switched delay system; Exponential stability

摘要：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.