Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays
Shaocheng Tong ; Gengjiao Yang ; Wei Zhang
International Journal of Applied Mathematics and Computer Science, Tome 21 (2011), p. 617-627 / Harvested from The Polish Digital Mathematics Library
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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.

Publié le : 2011-01-01
EUDML-ID : urn:eudml:doc:208074 
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     author = {Shaocheng Tong and Gengjiao Yang and Wei Zhang},
     title = {Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays},
     journal = {International Journal of Applied Mathematics and Computer Science},
     volume = {21},
     year = {2011},
     pages = {617-627},
     zbl = {1283.93166},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-amcv21i4p617bwm}
}

Shaocheng Tong; Gengjiao Yang; Wei Zhang. Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays. International Journal of Applied Mathematics and Computer Science, Tome 21 (2011) pp. 617-627. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-amcv21i4p617bwm/

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