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Type: Journal article
Title: Less conservative criteria for fault accommodation of time-varying delay systems using adaptive fault diagnosis observer
Author: Jiang, B.
Zhang, K.
Shi, P.
Citation: International Journal of Adaptive Control and Signal Processing, 2010; 24(4):322-334
Publisher: John Wiley & Sons
Issue Date: 2010
ISSN: 0890-6327
Statement of
Bin Jiang, Ke Zhang and Peng Shi
Abstract: This paper studies the problem of fault accommodation of time-varying delay systems using adaptive fault diagnosis observer. Based on the proposed fast adaptive fault estimation (FAFE) algorithm using only a measured output, a delay-dependent criteria is first established to reduce the conservatism of the design procedure, and the FAFE algorithm can enhance the performance of fault estimation. On the basis of fault estimation, the observer-based fault-tolerant tracking control is then designed to guarantee tracking performance of the closed-loop systems. Furthermore, comprehensive analysis is presented to discuss the calculation steps using linear matrix inequality technique. Finally, simulation results of a stirred tank reactor model are presented to illustrate the efficiency of the proposed techniques. Copyright © 2009 John Wiley & Sons, Ltd.
Keywords: fast fault estimation; fault accommodation; adaptive observer; time-varying delay
Rights: Copyright © 2009 John Wiley & Sons, Ltd.
DOI: 10.1002/acs.1138
Appears in Collections:Aurora harvest 2
Electrical and Electronic Engineering publications

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