Fault Diagnosis Observer Design for Discrete-Time Delayed Complex Interconnected Networks with Linear Coupling. (24th November 2012)

• Record Type: Journal Article
• Authors: Wang, Zhanshan; Guan, Huanxin; Zheng, Chengde
• Other Names: Jiang Bin Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2012(2012)
• Publication Date: 2012-11-24
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2012/860489
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : 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.