Fault Diagnosis Observer Design for Discrete-Time Delayed Complex Interconnected Networks with Linear Coupling

Fault diagnosis for a class of discrete-time delayed complex interconnected networks with linear coupling in the case of actuator fault is studied. For the case of unavailability of network state, a state observer is first designed. Then a fault diagnosis observer is designed to detect the actuator...

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Bibliographic Details
Published inMathematical problems in engineering Vol. 2012; no. 2012; pp. 1 - 22
Main Authors Wang, Zhanshan, Zheng, Chengde, Guan, Huanxin
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2012
Hindawi Limited
Subjects
Actuators
Coupling
Fault diagnosis
Mathematical models
Mathematical problems
Networks
Shenyang (opera singer)
State observers
Studies
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Summary:Fault diagnosis for a class of discrete-time delayed complex interconnected networks with linear coupling in the case of actuator fault is studied. For the case of unavailability of network state, a state observer is first designed. Then a fault diagnosis observer is designed to detect the actuator fault on the basis of online adaptive approximator, which can approximate the unmodeled dynamics of the complex networks. Lastly, by choosing a suitable threshold, the actuator fault can be detected. A numerical simulation is used to show the effectiveness of the proposed method.
ISSN:1024-123X
1563-5147
DOI:10.1155/2012/860489