Robust Sensor Fault Reconstruction for Lipschitz Nonlinear Systems | Zendy

Mohammad Javad Khosrowjerdi | Zendy

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Robust Sensor Fault Reconstruction for Lipschitz Nonlinear Systems

Author(s) -

Mohammad Javad Khosrowjerdi

Publication year - 2011

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2011/146038

Subject(s) - lipschitz continuity , control theory (sociology) , nonlinear system , observer (physics) , bounded function , fault (geology) , robust control , robustness (evolution) , computer science , fault detection and isolation , control engineering , attenuation , class (philosophy) , mathematics , engineering , control (management) , artificial intelligence , mathematical analysis , geology , biochemistry , chemistry , physics , optics , quantum mechanics , seismology , gene

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

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