• ISA transactions · Jul 2015

    Sliding mode based fault detection, reconstruction and fault tolerant control scheme for motor systems.

    • Hemza Mekki, Omar Benzineb, Djamel Boukhetala, Mohamed Tadjine, and Mohamed Benbouzid.
    • 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.
    • ISA Trans. 2015 Jul 1; 57: 340-51.

    AbstractThe 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. Copyright © 2015 ISA. Published by Elsevier Ltd. All rights reserved.

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