Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays

• Autorzy: Tong S. , Yang G. , Zhang W.
• Języki publikacji: EN

Abstrakty

EN

This paper addresses the problems of robust fault estimation and fault-tolerant control for Takagi-Sugeno (T-S) fuzzy systems with time delays and unknown sensor faults. A fuzzy augmented state and fault observer is designed to achieve the system state and sensor fault estimates simultaneously. Furthermore, based on the information of on-line fault estimates, an observer-based dynamic output feedback fault-tolerant controller is developed to compensate for the effect of faults by stabilizing the resulting closed-loop system. Sufficient conditions for the existence of both a state observer and a fault-tolerant controller are given in terms of linear matrix inequalities. A simulation example is given to illustrate the effectiveness of the proposed approach.

Słowa kluczowe

EN

fuzzy time delay systems; sensor faults; state observer; fault tolerant control; linear matrix inequalities; stability analysis

PL

sterowanie rozmyte; sterowanie z opóźnieniem; obserwator stanu; sterowanie tolerujące uszkodzenia; liniowa nierówność macierzowa; analiza stateczności

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2011
• Tom: Vol. 21, no 4
• Strony: 617--627
• Opis fizyczny: Bibliogr. 25 poz., wykr.

Twórcy

autor

Tong S.

autor

Yang G.

autor

Zhang W.

• Department of Mathematics, Liaoning University of Technology 169 Shiying Street, Guta District, Jinzhou, 121001, PR China,

Bibliografia

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