Fault Tolerant Control approach based on Multiple Models and set-membership state estimation

Abstract : This paper proposes a new Fault Tolerant Control technique based on the Multiple Models approach for linear systems with bounded perturbations and measurement noises. The consistency of each model with the measurements is checked at each sample time, using an ellipsoidal set-membership state estimation. A Min-Max Model Predictive Control is developed in order to find the optimal control and the best model in spite of the simultaneous presence of component and/or actuator and/or sensor faults. An illustrative example is analyzed in order to show the effectiveness of the proposed approach. Index Terms-FTC, FD, Multiple Models, set-membership state estimation, Min-Max MPC, uncertain linear systems.