Actuator and sensor faults estimation for fractional-order linear system via sliding mode observer

Nadia Djeghali (1) , Maamar Bettayeb (2) , Said Djennoune (1) , Jean-Pierre Barbot (3, 4) , Malek Ghanes (4)

1 L2CSP - Laboratoire de Conception et Conduite des systèmes de Production
2 Department of Electrical and Computer Engineering (University of Sharjah)
3 NON-A - Non-Asymptotic estimation for online systems
4 ECS-Lab - Électronique et Commande des Systèmes Laboratoire

Abstract: In this paper, sliding mode observers are designed in order to estimate actuator and sensor faults for linear fractional-order systems. The system is represented by a commensurate fractional-order state space model, in the presence of unknown sensor and actuator faults. The convergence of the designed observers is established. A numerical example is given to illustrate the effectiveness of the proposed approach.

Mots clés: linear fractional-order systems; actuator and sensor faults; sliding mode observers; fault detection and estimation.

Domaines: Automatique / Robotique

Nadia Djeghali, Maamar Bettayeb, Said Djennoune, Jean-Pierre Barbot, Malek Ghanes. Actuator and sensor faults estimation for fractional-order linear system via sliding mode observer. ICMIC-2016 - 8th International Conference on Modelling, Identification and Control, Bouchhida, Ouahid (Algeria), Zhu, Quanmin (UK), Nov 2016, Alger, Algeria. pp.382-386. ⟨hal-01441613⟩