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Actuator-fault detection and isolation based on interval observers and invariant sets
Xu, Feng; Puig Cayuela, Vicenç; Ocampo-Martínez, Carlos; Stoican, Florin; Olaru, Sorin
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. SAC - Sistemes Avançats de Control
This paper proposes an interval observer-based actuator fault detection and isolation (FDI) approach. An interval observer matching the healthy system mode is designed to monitor the system. When the system is in different modes, state or output interval vectors predicted by the interval observer manifest different dynamical behaviors. To guarantee reliable FDI, a collection of invariant set-based FDI conditions are established. Under these conditions, actuator faults can be accurately detected and isolated during the transition between different modes. At the end, the effectiveness of this proposed approach is presented by using a numerical example.
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Actuators
Automatic control
control system analysis
control theory
observability
fault detection
actuator faults
invariant sets
interval observers
Actuadors
Control automàtic
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Institute of Electrical and Electronics Engineers (IEEE)
         

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