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Type: Journal article
Title: Multi-constrained fault estimation observer design with finite frequency specifications for continuous-time systems
Author: Zhang, K.
Jiang, B.
Shi, P.
Xu, J.
Citation: International Journal of Control, 2014; 87(8):1635-1645
Publisher: Taylor & Francis
Issue Date: 2014
ISSN: 0020-7179
Statement of
Ke Zhang, Bin Jiang, Peng Shi and Jinfa Xu
Abstract: The design of a multi-constrained full-order fault estimation observer (FFEO) with finite frequency specifications is studied for continuous-time systems. By constructing an augmented system, a multi-constrained FFEO in finite frequency domain is proposed to achieve fault estimation. Meanwhile, the presented FFEO can avoid the overdesign problem generated by the entire frequency domain by the generalised Kalman–Yakubovich–Popov lemma. Furthermore, by introducing slack variables, improved results on FFEO design in different frequency domains are obtained such that different Lyapunov matrices can be separately designed for each constraint. Simulation results are presented to demonstrate the effectiveness and potentials of the proposed techniques.
Keywords: Fault diagnosis; fault estimation; finite frequency; multiple constraints
Rights: © 2014 Taylor & Francis
RMID: 0030007003
DOI: 10.1080/00207179.2014.880950
Grant ID:
Appears in Collections:Electrical and Electronic Engineering publications

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