NDLI: Observer-based fault detection for nonlinear networked systems with random packet dropout and time-varying delay

Content Provider	IEEE Xplore Digital Library
Author	Zhang Yong Fang Huajing Fu Sheng
Copyright Year	2010
Description	Author affiliation: Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan Hubei 430074, China (Zhang Yong; Fang Huajing; Fu Sheng)
Abstract	In this paper, the fault detection problem for nonlinear networked control systems (NCSs) with packet dropout and delay is investigated. A nonlinear stochastic systems model is proposed to account for the NCSs with random packet dropout and network-induced time-varying delay in both from sensor to controller (S/C) and from controller to actuator (C/A). Based on the obtained NCSs model, employing observer-based fault detection filter as residual generator, the addressed fault detection problem is converted into an auxiliary nonlinear H∞ control problem. Then, with the help of Lyapunov-Krasovskii functional approach, a sufficient condition for the desired fault detection filter is constructed in terms of certain linear matrix inequalities, which depend on not only delay interval but also on delay interval occurrence rate and successful packet communication rate. Especially, a trade-off phenomenon between the allowable delay bound and successful data packet transmission rate is found, which is typically resulted from limited bandwidth of communication networks. The effectiveness of proposed method is demonstrated by simulation example.
Starting Page	4278
Ending Page	4282
File Size	134420
Page Count	5
File Format	PDF
ISBN	9781424462636
e-ISBN	9787894631046
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-29
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Chinese Association of Aut
Subject Keyword	Time-varying Delay Symmetric matrices Fault Detection Networked control systems Time varying systems Fault detection Random Packet Dropout Linear Matrix Inequalities Linear matrix inequalities Delay Nonlinear Networked Control Systems
Content Type	Text
Resource Type	Article

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