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Mathematical Problems in EngineeringVolume 2011 2011, Article ID 146038, 17 pages

Research ArticleDepartment of Electrical Engineering, Sahand University of Technology, P.O. Box 51336-1996, Sahand, Tabriz, Iran

Received 29 December 2010; Revised 27 January 2011; Accepted 3 February 2011

Academic Editor: Oleg V. Gendelman

Copyright © 2011 M. J. Khosrowjerdi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We extend existing theory on robust nonlinear observerdesign to the class of nonlinear Lipschitz systems where the systemsare subject to sensor faults and disturbances. The designed observeris used for robust reconstruction of fault signals. Allowing boundedunknown disturbances to model system uncertainties, it is shown thatby adjusting a design parameter we can trade off between fault reconstructionand disturbance attenuation. An LMI procedure solvableusing commercially available softwares is presented. Two examples arepresented to illustrate the application of the results.





Author: M. J. Khosrowjerdi

Source: https://www.hindawi.com/



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