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 (2011)

  • Volume: 21, Issue: 4, page 617-627
  • ISSN: 1641-876X

Abstract

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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.

How to cite

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Shaocheng Tong, Gengjiao Yang, and Wei Zhang. "Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays." International Journal of Applied Mathematics and Computer Science 21.4 (2011): 617-627. <http://eudml.org/doc/208074>.

@article{ShaochengTong2011,
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.},
author = {Shaocheng Tong, Gengjiao Yang, Wei Zhang},
journal = {International Journal of Applied Mathematics and Computer Science},
keywords = {fuzzy time-delay systems; sensor faults; state observer; fault-tolerant control; linear matrix inequalities; stability analysis},
language = {eng},
number = {4},
pages = {617-627},
title = {Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays},
url = {http://eudml.org/doc/208074},
volume = {21},
year = {2011},
}

TY - JOUR
AU - Shaocheng Tong
AU - Gengjiao Yang
AU - Wei Zhang
TI - Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays
JO - International Journal of Applied Mathematics and Computer Science
PY - 2011
VL - 21
IS - 4
SP - 617
EP - 627
AB - 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.
LA - eng
KW - fuzzy time-delay systems; sensor faults; state observer; fault-tolerant control; linear matrix inequalities; stability analysis
UR - http://eudml.org/doc/208074
ER -

References

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