2026-04-17T02:06:51Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/251022026-01-21T10:17:16Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Vento Maldonado, Jorge author Blesa Izquierdo, Joaquim author Puig Cayuela, Vicenç author Sarrate Estruch, Ramon author 2014-11-07 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 (including noise and discretisation 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. Peer Reviewed Postprint (published version) Àrees temàtiques de la UPC::Informàtica::Automàtica i control Automation fault detection and isolation hybrid systems parameter uncertainty mode recognition diagnoser Automatització Set-membership parity space hybrid system diagnosis