New results on delay-dependent robust stability criteria of uncertain fuzzy systems with state and input delays

  • Authors:

  • Li Li;Xiaodong Liu

  • Affiliations:

  • Research Center of Information and Control, Dalian University of Technology, Dalian 116024, PR China and College of Maths and Systematic Science, Shenyang Normal University, Shenyang 110034, PR Ch ...;Research Center of Information and Control, Dalian University of Technology, Dalian 116024, PR China

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2009

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Abstract

This paper focuses on the delay-dependent stability analysis and stabilization for uncertain T-S fuzzy control systems with state and input delays. The key features of the approach include the introduction of uncorrelated augmented matrix items into the Lyapunov functional and the use of a tighter bounding technology. In fact, these techniques lead to more general and less conservative stability conditions that guarantee a wide stability region. Our delay-dependent stability conditions thus obtained are given in terms of linear matrix inequalities (LMIs). Finally, some examples are included to show that the proposed criteria improve the existing results significantly.