Characterization of the minimum detectable fault of interval observers by using set-invariance theory

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Sep 2016Publisher:IEEEJournal:2016 3rd Conference on Control and Fault-Tolerant Systems (SysTol)

Authors: Pourasgharlafmejani, Masoud; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos;

doi: 10.1109/systol.2016.7739732

handle: 2117/101158

Characterization of the minimum detectable fault of interval observers by using set-invariance theory

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Abstract

This paper addresses the characterization of the minimum detectable fault when using interval observers. The interval observers consider both input and uncertainty as unknown but bounded. The minimum detectable fault using interval observers is characterized by means of residual sensitivity and invariant sets. The design of such observers is performed by using zonotopic-set representations. The mathematical expression of the minimum magnitude of the fault that can be detected is derived for a given type of faults in separate formulations. Finally, a simulation example is employed to illustrate and discuss the effectiveness of the obtained results. Peer Reviewed

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Keywords

Fault tolerant systems, :Informàtica::Automàtica i control [Àrees temàtiques de la UPC], Fault tolerance, Economic indicators, Sensitivity, Àrees temàtiques de la UPC::Informàtica::Automàtica i control, Tolerància als errors (Enginyeria), Fault tolerance (Engineering), Observers, Fault detection, Actuators

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