Creator:
Tong, Shaocheng ; Yang, Gengjiao ; Zhang, Wei
Contributor:
Korbicz, Józef (1951- ) - red. ; Uciński, Dariusz - red.
Title:
Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays
Group publication title:
Subject and Keywords:
fuzzy time-delay systems ; sensor faults ; state observer ; fault-tolerant control ; linear matrix inequalities ; stability analysis
Abstract:
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.
Publisher:
Zielona Góra: Uniwersytet Zielonogórski
Date:
Resource Type:
DOI:
Pages:
Source:
AMCS, Volume 21, Number 4 (2011) ; click here to follow the link