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Constraint satisfaction techniques under uncertain conditions for fault diagnosis in nonlinear dynamic systems

The speed of fault isolation is crucial for the design and reconfiguration of fault tolerant control (FTC). In this paper the fault isolation problem is stated as a constraint satisfaction problem (CSP) and solved using constraint propagation techniques. The proposed method is based on constraint satisfaction techniques and uncertainty space refining of interval parameters. In comparison with other approaches based on adaptive observers, the major advantage of the presented method is that the isolation speed is fast even taking into account uncertainty in parameters, measurements and model errors and without the monotonicity assumption. In order to illustrate the proposed approach, a case study of a nonlinear dynamic system is presented

IEEE

Autor: Castillo, Sandra M.
Gelso, Esteban Reinaldo
Armengol Llobet, Joaquim
Resum: The speed of fault isolation is crucial for the design and reconfiguration of fault tolerant control (FTC). In this paper the fault isolation problem is stated as a constraint satisfaction problem (CSP) and solved using constraint propagation techniques. The proposed method is based on constraint satisfaction techniques and uncertainty space refining of interval parameters. In comparison with other approaches based on adaptive observers, the major advantage of the presented method is that the isolation speed is fast even taking into account uncertainty in parameters, measurements and model errors and without the monotonicity assumption. In order to illustrate the proposed approach, a case study of a nonlinear dynamic system is presented
Accés al document: http://hdl.handle.net/2072/63324
Llenguatge: eng
Editor: IEEE
Drets: Tots els drets reservats
Matèria: Anàlisi d’intervals (Matemàtica)
Errors de diagnòstic
Sistemes dinàmics diferenciables
Diagnostic errors
Differentiable dynamical systems
Interval analysis (Mathematics)
Títol: Constraint satisfaction techniques under uncertain conditions for fault diagnosis in nonlinear dynamic systems
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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