Improved Stability Criteria for Discrete-Time Switched T-S Fuzzy Systems

Zhongyang Fei, Shuang Shi, Tong Wang, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


This paper concerns with the stability analysis for a class of discrete-time switched Takagi-Sugeno (T-S) fuzzy systems. By establishing a semitime-dependent Lyapunov function and exploring the property of mode-dependent average dwell-time switching, improved stability criteria are provided for switched T-S fuzzy systems containing both stable and unstable modes. Then, slow and fast switching strategies are designed, which are adopted for stable and unstable subsystems, respectively. Especially, we also provide the stability conditions for switched systems with all modes stable and unstable. Finally, the validities and advantages of provided techniques are illustrated by some simulation examples.

Original languageEnglish
Article number8568004
Pages (from-to)712-720
Number of pages9
JournalIEEE Transactions on Systems, Man, and Cybernetics: Systems
Issue number2
Publication statusPublished - 2021 Feb


  • Extended mode-dependent average dwell-time
  • stability analysis
  • switched Takagi-Sugeno (T-S) fuzzy system

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Human-Computer Interaction
  • Computer Science Applications
  • Electrical and Electronic Engineering


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