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Fault diagnosis by refining the parameter uncertainty space of nonlinear dynamic systems

This paper deals with fault detection and isolation problems for nonlinear dynamic systems. Both problems are stated as constraint satisfaction problems (CSP) and solved using consistency techniques. The main contribution is the isolation method based on consistency techniques and uncertainty space refining of interval parameters. The major advantage of this method is that the isolation speed is fast even taking into account uncertainty in parameters, measurements, and model errors. Interval calculations bring independence from the assumption of monotony considered by several approaches for fault isolation which are based on observers. An application to a well known alcoholic fermentation process model is presented

© American Control Conference, 2008, p. 4304-4308

IEEE

Author: Gelso, Esteban Reinaldo
Castillo, Sandra M.
Armengol Llobet, Joaquim
Date: 2008
Abstract: This paper deals with fault detection and isolation problems for nonlinear dynamic systems. Both problems are stated as constraint satisfaction problems (CSP) and solved using consistency techniques. The main contribution is the isolation method based on consistency techniques and uncertainty space refining of interval parameters. The major advantage of this method is that the isolation speed is fast even taking into account uncertainty in parameters, measurements, and model errors. Interval calculations bring independence from the assumption of monotony considered by several approaches for fault isolation which are based on observers. An application to a well known alcoholic fermentation process model is presented
Format: application/pdf
Citation: Gelso, E.R., Castillo, S.M., i Armengol, J. (2008). Fault diagnosis by refining the parameter uncertainty space of nonlinear dynamic systems. American Control Conference : 2008, 4304-4308. Recuperat 08 juny 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4587170
ISBN: 978-1-4244-2078-0
ISSN: 0743-1619
Document access: http://hdl.handle.net/10256/2563
Language: eng
Publisher: IEEE
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/ACC.2008.4587170
Articles publicats (D-EEEiA)
Is part of: © American Control Conference, 2008, p. 4304-4308
Rights: Tots els drets reservats
Subject: Anàlisi d’intervals (Matemàtica)
Errors de diagnòstic
Sistemes dinàmics diferenciables
Diagnostic errors
Differentiable dynamical systems
Interval analysis (Mathematics)
Title: Fault diagnosis by refining the parameter uncertainty space of nonlinear dynamic systems
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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