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Stability analysis of discrete T-S fuzzy systems

  • Song Tao Zhang*
  • , Shu Juan Wang
  • *Corresponding author for this work
  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Harbin University of Commerce

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Based on the properties of fuzzy systems with two-overlapped fuzzy partition inputs, the stability analysis of discrete T-S fuzzy systems is discussed. First, a new piecewise discrete Lyapunov function is constructed in maximal overlapped-rule group. Each discrete Lyapunov function lies in its own operating regions of maximal overlapped-rule group. And then based on this a new sufficient condition to check the stability of the open-loop system is proposed. This condition only requires finding a common positive-definite matrix in each maximal overlapped-rule group. Compared with former stability analysis approaches, it can not only overcome the defect of finding a common positive-definite matrix but also reduce the number of solving Lyapunov inequalities. At last, a simulation example shows that the method is effective and advantageous.

Original languageEnglish
Title of host publicationChinese Control and Decision Conference, 2008, CCDC 2008
Pages2045-2048
Number of pages4
DOIs
StatePublished - 2008
Externally publishedYes
EventChinese Control and Decision Conference 2008, CCDC 2008 - Yantai, Shandong, China
Duration: 2 Jul 20084 Jul 2008

Publication series

NameChinese Control and Decision Conference, 2008, CCDC 2008

Conference

ConferenceChinese Control and Decision Conference 2008, CCDC 2008
Country/TerritoryChina
CityYantai, Shandong
Period2/07/084/07/08

Keywords

  • Lyapunov function
  • Stability analysis
  • T-S fuzzy systems

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