Descriptor discretized Lyapunov Functional method

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Abstract

Stability and state-feedback stabilization of linear systems with constant delays are considered. The system under consideration may be unstable without delay, but it becomes asymptotically stable for positive values of the delay. A new descriptor discretized Lyapunov Krasovskii Functional (LKF) method is introduced, which combines the application of the complete LKF and the discretization method of K. Gu with the descriptor model transformation. For the first time the new method allows to apply the discretized LKF method to synthesis problems. Moreover, the analysis of systems with polytopic time-invariant uncertainties is less restrictive by the new discretized method. Sufficient conditions for stability and stabilization are derived in terms of Linear Matrix Inequalities (LMIs). Numerical examples illustrate the efficiency of the new method.

Original languageEnglish
Title of host publicationROCOND'06 - 5th IFAC Symposium on Robust Control Design, Final Program with Abstracts
PublisherIFAC Secretariat
Pages638-643
Number of pages6
EditionPART 1
ISBN (Print)9783902661104
DOIs
StatePublished - 2006

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
Volume5
ISSN (Print)1474-6670

Keywords

  • LMI
  • Lyapunov-Krasovskii functional
  • Stability
  • Stabilization
  • Time-delay

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