Virtual flux droop (VFD) method is a scheme, in which, instead of frequency and voltage amplitude, the phase angle and amplitude of the virtual flux are, respectively, adjusted to active and reactive power sharing. However, mismatched line impedances lead to improper power sharing. An adaptive VFD (AVFD) control strategy is proposed in this article to solve this problem. First, the effect of the mismatched line impedances on the VFD method is analyzed. Then, the idea of virtual impedance is employed to develop the AVFD control strategy. In addition, a small-signal model is presented which is used to tune the control parameters. Furthermore, the microgrid control approach is made based on the direct flux control (DFC) method to apply the proposed strategy. The resultant control scheme is simple without needing multiple feedback loops and complex transformations. In order to validate feasibility and effectiveness of the proposed control strategy, both simulation and experimental studies are implemented. The results show that by the proposed method, accurate power sharing proportional to the ratings of the sources can be achieved in spite of mismatched line impedances.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Adaptive Virtual Flux Droop Control Based on Virtual Impedance in Islanded AC Microgrids


    Beteiligte:

    Erscheinungsdatum :

    2022-02-01


    Anmerkungen:

    Khanabdal , S , Banejad , M , Blaabjerg , F & Hosseinzadeh , N 2022 , ' Adaptive Virtual Flux Droop Control Based on Virtual Impedance in Islanded AC Microgrids ' , I E E E Journal of Emerging and Selected Topics in Power Electronics , vol. 10 , no. 1 , 9523742 , pp. 1095-1107 . https://doi.org/10.1109/JESTPE.2021.3108179



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    629



    Decentralized Virtual Impedance-based Circulating Current Suppression Control for Islanded Microgrids

    Abu Bakar, A. / Pathan, E. / Khan, M. H. et al. | BASE | 2021

    Freier Zugriff

    A Novel Power Sharing Strategy Based on Virtual Flux Droop and Model Predictive Control for Islanded Low-Voltage AC Microgrids

    Khanabdal, Saheb / Banejad, Mahdi / Blaabjerg, Frede et al. | BASE | 2021

    Freier Zugriff

    An iterative adaptive virtual impedance loop for reactive power sharing in islanded meshed microgrids

    Sellamna, H. / Massi Pavan, A. / Mellit, A. et al. | BASE | 2020

    Freier Zugriff

    Accurate Reactive Power Sharing Strategy for Droop-based Islanded AC Microgrids

    Mohammed, Nabil / Lashab, Abderezak / Ciobotaru, Mihai et al. | BASE | 2023

    Freier Zugriff

    A novel control strategy of an islanded microgrid based on virtual flux droop control and direct flux fuzzy control

    Khanabdal, S. / Banejad, M. / Blaabjerg, F. et al. | BASE | 2021

    Freier Zugriff