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论文类型：期刊论文

发表时间：2009-06-16

发表刊物：FUZZY SETS AND SYSTEMS

收录刊物：SCIE、EI

卷号：160

期号：12

页面范围：1669-1688

ISSN号：0165-0114

关键字：T-S fuzzy systems; Linear matrix inequality (LMI); Delay-dependent; Interval time-varying delay

摘要：This paper considers the delay-dependent stabilization problems and H-infinity control problems for uncertain T-S fuzzy system with time-varying delay in a range. A new method is proposed by defining new Lyapunov functionals and introducing some integral inequalities. The merit of the proposed conditions lies in the less conservativeness than the existing ones, which is achieved by paying careful attention to the subtle difference between the two integral terms, which is always ignored in the existing literatures, and the free variables which replace the Leibniz-Newton formula with integral inequalities. The fuzzy state feedback gains are derived through the numerical solution of a set of linear matrix inequalities (LMIs). The efficiency and the benefits of our method are demonstrated by the numerical examples. (C) 2008 Elsevier B.V. All fights reserved.