For an inductor-capacitor–inductor (LCL) equipped high-speed permanent magnet synchronous machine (LCL-HSPMSM) with the inverter current feedback (ICF), the resonance frequency of the LCL filter is typically designed higher than one-sixth of the sampling frequency to accommodate the high electrical frequency. However, this design inherently poses a challenge to system stability in a digital system, primarily due to the presence of computation delays. This article proposes a two-degree-of-freedom (2DOF) current control strategy with reduced delay. Employing the proposed method, the system achieves strong stability, eliminating the need for active damping (AD). First, a mathematical model of the LCL-HSPMSM is formulated, which serves as the foundation for analyzing the stability concerning delays. Subsequently, a 2DOF control strategy is introduced, specifically tailored to the system with reduced delay. The additional DOF is provided by a feedforward controller to achieve dynamic decoupling. The delay-reducing method for the proposed control strategy is then described. In general, the whole controller design is independent of the resonance frequency, thereby exhibiting robust stability and resilience to a broad range of resonance frequency variations. Finally, the proposed method is verified in experiments, even with a carrier ratio as low as 8 and a resonance frequency close to the Nyquist frequency.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Robust Fast Current Control for LCL-Equipped High-Speed PMSMs With Reduced Delay


    Beteiligte:
    Cheng, Chenwen (Autor:in) / Shi, Longhao (Autor:in) / Hu, Mingjin (Autor:in) / Hua, Wei (Autor:in) / Hu, Yinfeng (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.02.2025


    Format / Umfang :

    7316224 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Global pid control of robot manipulators equipped with pmsms

    Hernández‐Guzmán, V. M. / Orrante‐Sakanassi, J. | British Library Online Contents | 2018



    A Robust Control Design for Minimizing Torque Ripple in PMSMS for Vehicular Propulsion

    Norediene, Aouadj / Kada, Hartani / Chikouche, T. Mohammed | Springer Verlag | 2019