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Article Dans Une Revue Transactions of the Institute of Measurement and Control Année : 2010

Design of a fault diagnosis system based on a bank of filter–observers with application to a hot rolling mill

Résumé

This paper proposes a new method for actuator/sensor faults detection, isolation and magnitude estimation. By establishing new theoretical results relating to fault diagnosis and by defining a specific application domain, the research work described in this paper aims at developing a model-based fault detection filter combined with a conventional Luenberger observer. Based on an appropriate gain, the developed technique enables one to supervise a system through an accurate bank of residuals within a generalized observer scheme. The approach is evaluated by diagnosing a series of actuator/sensor faults in a speed control loop of a hot rolling mill used to carry out multi-pass forward–forward or forward–reverse rolling. The performance of the technique is illustrated via a wide range of simulations in the ‘faulty' case and a practical experiment in the ‘fault-free' case using a real rolling mill.
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Dates et versions

hal-00491083 , version 1 (10-06-2010)

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Didier Theilliol, Mahdi Mahfouf, Jean-Christophe Ponsart, Dominique Sauter, Miguel Angel Gama. Design of a fault diagnosis system based on a bank of filter–observers with application to a hot rolling mill. Transactions of the Institute of Measurement and Control, 2010, 32 (3), pp.265-285. ⟨10.1177/0142331209103044⟩. ⟨hal-00491083⟩
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