Contributions à l'observation et à la commande tolérante aux fautes des systèmes incertains

Abstract : The research work presented in this thesis focuses on the design of interval observers for fault-tolerant control of uncertain systems. The presence of faults, uncertainties and disturbances in automated systems often causes undesirable reactions. In this context, two approaches of fault tolerant control have been developed based on interval observers in the case where the faults and the uncertainties are unknown but bounded. The first approach is passive and consists in ensuring the closed loop system stability even in the presence of actuator and/or component faults. The second approach, an active one, compensates the fault effect and ensures the system stability and desired performances. These contributions are validated through numerical simulations.
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Rihab Lamouchi. Contributions à l'observation et à la commande tolérante aux fautes des systèmes incertains. Modélisation et simulation. Conservatoire national des arts et metiers - CNAM; Université de Gabès (Tunisie), 2017. Français. ⟨NNT : 2017CNAM1134⟩. ⟨tel-01683146⟩

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