Publication
Set-membership parity space hybrid system diagnosis
Journal Article (2015)
Journal
International Journal of Systems Science
Pages
790–807
Volume
46
Number
5
Doc link
http://dx.doi.org/10.1080/00207721.2014.977978
File
Authors
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Vento, Jorge
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Blesa Izquierdo, Joaquim
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Puig Cayuela, Vicenç
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Sarrate Estruch, Ramon
Projects associated
Abstract
In this paper, diagnosis for hybrid systems using a parity space approach that considers model uncertainty is proposed. The hybrid diagnoser is composed of modules which carry out the mode recognition and diagnosis tasks interacting each other, since the diagnosis module adapts accordingly to the current hybrid system mode. Moreover, the methodology takes into account the unknown but bounded uncertainty in parameters and additive errors using a passive robust strategy based on the set-membership approach. An adaptive threshold that bounds the effect of model uncertainty in residuals is generated for residual evaluation using zonotopes, and the parity space approach is used to design a set of residuals for each mode. The proposed fault diagnosis approach for hybrid systems is illustrated on a piece of the Barcelona sewer network.
Categories
observability.
Author keywords
fault detection and isolation, hybrid systems, parameter uncertainty, mode recognition , diagnoser
Scientific reference
J. Vento, J. Blesa, V. Puig and R. Sarrate. Set-membership parity space hybrid system diagnosis. International Journal of Systems Science, 46(5): 790–807, 2015.
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