In this study, an algebraic-observer-based output-feedback controller is proposed for a proton exchange membrane fuel cell (PEMFC) air-supply subsystem, based on both algebraic differentiation and sliding-mode control approaches. The goal of the design is to regulate the oxygen excess ratio (OER) towards its optimal set point value in the PEMFC air-supply subsystem. Hence, an algebraic estimation approach is used to reconstruct the OER based on a robust differentiation method. The proposed observer is known for its finite-time convergence and low computational time compared to other observers presented in the literature. Then, a twisting controller is designed to control the OER by manipulating the compressor motor voltage. The parameters of the twisting controller have been calculated by means of an off-line tuning procedure. The performance of the proposed algebraic-observer-based output-feedback controller is analysed through simulations for different stack-current changes, for parameter uncertainties, and for noise rejection. Results show that the proposed approach properly estimates and regulates the OER in finite-time. ; This work was supported by Laboratoire d’Analyse et de Commande des Systèmes d’Énergies et Réseaux Électriques. Université Amar Telidji de Laghouat, Laghouat 03000, Algérie. The work of C. Ocampo-Martinez is partially supported by the project DEOCS (Ref. DPI2016-76493-C3-3-R) from the Spanish MINECO/FEDER ; Peer reviewed


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    Titel :

    Algebraic observer-based output-feedback controller design for a PEM fuel cell air-supply subsystem



    Erscheinungsdatum :

    29.10.2018



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    DDC:    629



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