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

• Autorzy: Shaocheng Tong , Gengjiao Yang , Wei Zhang
• 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

• Wydawca: University of Zielona Gora Press
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2011
• Tom: 21
• Numer: 4
• Strony: 617-627

Daty

wydano

2011

otrzymano

2010-11-13

poprawiono

2011-04-10

Twórcy

autor

Shaocheng Tong

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

autor

Gengjiao Yang

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

autor

Wei Zhang

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

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Identyfikatory

DOI

10.2478/v10006-011-0048-4