Improved delay-dependent stability criteria for uncertain Lur'e systems with sector and slope restricted nonlinearities and time-varying delays

S. J. Choi, S. M. Lee, S. C. Won, Ju H. Park

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

This paper deals with the absolute stability analysis for uncertain time delay Lur'e systems that have time-varying delays and sector and slope restricted nonlinearities. New delay-dependent stability criteria are derived via linear matrix inequality (LMI) formulation that can be easily solved by various optimization techniques. Sector bounds and slope bounds are employed to the Lyapunov-Krasovskii functional through convex representation of the nonlinearities so that less conservative stability conditions are obtained. Numerical examples show effectiveness of the proposed stability condition.

Original languageEnglish
Pages (from-to)520-530
Number of pages11
JournalApplied Mathematics and Computation
Volume208
Issue number2
DOIs
StatePublished - 15 Feb 2009

Keywords

  • Delay-dependent stability criteria
  • LMIs
  • Lur'e systems
  • Time-varying delay

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