Adaptive observer design for the uncertain Takagi-Sugeno fuzzy system with output disturbance

T. V. Dang, W. J. Wang, L. Luoh, C. H. Sun

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

The study proposes an adaptive fuzzy observer for the uncertain Takagi-Sugeno (T-S) fuzzy system with output disturbance. First, an augmented fuzzy model is built by integrating the system state and the output disturbance together as new variables. Then, the desired adaptive fuzzy observer is designed to estimate the unavailable system state and the unknown output disturbance simultaneously. Based on Lyapunov theory and linear matrix inequalities (LMIs) tools, two main conditions are derived under which the fuzzy observer is designed. Finally, the procedure of the observer design is summarised and the effectiveness of the designed observer is demonstrated with a numerical example.

Original languageEnglish
Pages (from-to)1351-1366
Number of pages16
JournalIET Control Theory and Applications
Volume6
Issue number10
DOIs
StatePublished - 5 Jul 2012

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