In order to improve the speed-regulation performance of the permanent-magnet synchronous motor (PMSM) system under uncertainties and disturbances, an equivalent disturbance observer (EDO) based discrete-time integral sliding mode control (DISMC) scheme is proposed. To avoid the high-frequency noise caused by the differential terms of conventional sliding mode control (SMC), a discrete-time integral sliding surface is designed, which can eliminate the reaching phase and achieve excellent tracking responses and global robustness. Then, a discretized EDO is proposed to realize the estimation and feed-forward compensation of the disturbances online, so that it can guarantee disturbance rejection ability and high-precision control. Furthermore, stability analysis of the designed system is given. Simulation results demonstrate the validity of the proposed control scheme.


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    Titel :

    Equivalent disturbance observer based discrete-time integral sliding mode control for PMSM speed regulation system


    Beteiligte:
    Zheng, Changming (Autor:in) / Zhang, Jiasheng (Autor:in) / Liu, Wei (Autor:in) / Guo, Zhen (Autor:in) / Zhang, Liping (Autor:in)


    Erscheinungsdatum :

    2017-08-01


    Format / Umfang :

    397609 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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