Title :
Fault tolerant control for induction motors using sliding mode observers
Author :
Djeghali, N. ; Ghanes, M. ; Djennoune, S. ; Barbot, J.-P. ; Tadjine, M.
Author_Institution :
Lab. de Conduite et Conception des Syst. de Production, Univ. Mouloud Mammeri de Tizi-Ouzou, Tizi-Ouzou, Algeria
Abstract :
In this paper a fault tolerant control design based on a sliding mode observer for induction motors is proposed. First, a direct field oriented controller based on backstepping technique is designed in order to steer the flux and speed variables to their desired references and to compensate the load disturbance. Second, a sliding mode observer is designed in order to detect and reconstruct the faults and also to estimate the flux. Then, additional control laws based on the estimates of the faults are designed in order to compensate the faults. Numerical simulations show the effectiveness of the proposed control scheme.
Keywords :
fault tolerance; induction motors; numerical analysis; observers; variable structure systems; backstepping; control laws; direct field oriented controller; fault tolerant control design; induction motors; numerical simulations; sliding mode observers; Backstepping; Circuit faults; Control systems; Fault detection; Fault tolerance; Fault tolerant systems; Frequency estimation; Induction motors; Sliding mode control; Stators;
Conference_Titel :
Variable Structure Systems (VSS), 2010 11th International Workshop on
Conference_Location :
Mexico City
Print_ISBN :
978-1-4244-5829-5
Electronic_ISBN :
978-1-4244-5830-1
DOI :
10.1109/VSS.2010.5544682
