Fault estimation for descriptor linear systems based on the generalised dynamic observer

An observer-based method for actuator fault estimation for descriptor systems is presented. An innovative generalised dynamic observer for descriptor systems is synthesised to perform a convergent estimation of actuator faults. The main advantage of this observer is that it can be configured as a si...

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Bibliographic Details
Published in:International journal of systems science 2018-08, Vol.49 (11), p.2398-2409
Main Authors: Osorio-Gordillo, Gloria, Astorga-Zaragoza, Carlos, Pérez Estrada, Abraham, Vargas-Méndez, Rodolfo, Darouach, Mohamed, Boutat-Baddas, Latifa
Format: Article
Language:English
Subjects:
Actuators
Automatic
Descriptor systems
Design specifications
Engineering Sciences
fault estimation
generalised dynamic observer
Heat exchangers
Linear systems
Mathematical models
Stability analysis
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Summary:An observer-based method for actuator fault estimation for descriptor systems is presented. An innovative generalised dynamic observer for descriptor systems is synthesised to perform a convergent estimation of actuator faults. The main advantage of this observer is that it can be configured as a simple proportional observer or a proportional-integral observer, depending on the design specifications. An algorithm is provided to compute the observer gains, which are deduced from the stability analysis. Actuator faults occurring in a heat exchanger modelled in descriptor form are estimated in order to evaluate the capabilities of the observer.
ISSN:0020-7721
1464-5319
DOI:10.1080/00207721.2018.1503357