Set-based actuator fault diagnosis in Lure systems

Title: Set-based actuator fault diagnosis in Lure systems
Creator: Seron, María M.; De Dona, José A.; Richter, Jan H.
Relation: 8th IFAC SAFEPROCESS 2012 International Symposium on Fault Detection, Supervision and Safety. Proceedings of 8th IFAC SAFEPROCESS 2012 International Symposium on Fault Detection, Supervision and Safety [presented in IFAC Proceedings Volumes, Vol. 45, Iss. 20] (Mexico City, Mexico 29-31 August, 2012) p. 234-239
Publisher Link: http://dx.doi.org/10.3182/20120829-3-MX-2028.00136
Publisher: International Federation of Automatic Control (IFAC)
Resource Type: conference paper
Date: 2012
Description: In this paper we present a method for actuator fault detection and identification in Lure systems. The Lure plant is controlled by an observer-based feedback tracking controller, designed for the nominal (fault-free) system. A residual signal is constructed from measurable estimation errors associated with the nominal observer. Faults are diagnosed by on-line contrasting the residual signal trajectories against a set of values that the residuals can be shown to attain under healthy or faulty operation. These values are obtained via set-invariance analysis of the system closed-loop trajectories.
Subject: Lure systems; fault detection and identification; invariant sets
Identifier: http://hdl.handle.net/1959.13/1340425
Identifier: uon:28479
Identifier: ISBN:9783902823090
Language: eng
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