Sliding mode based fault detection, reconstruction and fault tolerant control scheme for motor systems.
The fault-tolerant control problem belongs to the domain of complex control systems in which inter-control-disciplinary information and expertise are required. This paper proposes an improved faults detection, reconstruction and fault-tolerant control (FTC) scheme for motor systems (MS) with typical faults. For this purpose, a sliding mode controller (SMC) with an integral sliding surface is adopted. This controller can make the output of system to track the desired position reference signal in finite-time and obtain a better dynamic response and anti-disturbance performance. But this controller cannot deal directly with total system failures. However an appropriate combination of the adopted SMC and sliding mode observer (SMO), later it is designed to on-line detect and reconstruct the faults and also to give a sensorless control strategy which can achieve tolerance to a wide class of total additive failures. The closed-loop stability is proved, using the Lyapunov stability theory. Simulation results in healthy and faulty conditions confirm the reliability of the suggested framework.
Ecole Nationale Polytechnique, Automatic Control Department, LCP, B.P 182 Elharrach, Algiers, Algeria; Electrical Engineering Department, University of M׳sila, B.P 166 Ichbilia M׳sila, Algeria. Electronic address: hamza.mekki@g.enp.edu.dz.
Hemza
H
Mekki
Electronics Department, University of Blida, B.P 270 Road of Soumaa, Blida, Algeria; University of Brest, EA 4325 LBMS, Rue de Kergoat, CS 93837, 29238 Brest Cedex 03, France. Electronic address: omar.benzineb@univ-brest.fr.
Omar
O
Benzineb
Ecole Nationale Polytechnique, Automatic Control Department, LCP, B.P 182 Elharrach, Algiers, Algeria. Electronic address: djamel.boukhetala@g.enp.edu.dz.
Djamel
D
Boukhetala
Ecole Nationale Polytechnique, Automatic Control Department, LCP, B.P 182 Elharrach, Algiers, Algeria. Electronic address: mohamed.tadjine@mail.enp.edu.dz.
Mohamed
M
Tadjine
University of Brest, EA 4325 LBMS, Rue de Kergoat, CS 93837, 29238 Brest Cedex 03, France. Electronic address: Mohamed.Benbouzid@univ-brest.fr.
Mohamed
M
Benbouzid
Fault detection and reconstruction; Fault-tolerant control (FTC); Motor systems (MS); Sliding mode control (SMC); Sliding mode observer (SMO)