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Virtual Inertia of Electric Vehicle Fast Charging Stations with Dual Droop Control and Augmented Frequency Support

Author

Listed:
  • Nargunadevi Thangavel Sampathkumar

    (Department of Electrical and Electronics Engineering, CEG Campus, Anna University, Chennai 600025, India)

  • Anbuselvi Shanmugam Velu

    (Department of Electrical and Electronics Engineering, CEG Campus, Anna University, Chennai 600025, India)

  • Brinda Rajasekaran

    (Department of Electrical and Electronics Engineering, CEG Campus, Anna University, Chennai 600025, India)

  • Kumudini Devi Raguru Pandu

    (Department of Electrical and Electronics Engineering, CEG Campus, Anna University, Chennai 600025, India)

Abstract

High penetration of Inverter-Based Resources (IBRs) into the power grid could diminish the rotational inertia offered by a traditional power system and thus impact frequency stability. Several techniques are adopted to provide virtual inertial support to the grid for a short duration in the presence of IBRs. This paper uses the combined inertia support of a Dual Active Bridge (DAB) and a Voltage Source Converter (VSC)-fed Electric Vehicle Fast Charging System (EVFCS) is used to provide virtual inertia support to the grid. The Voltage Source Converter is designed to provide DC bus voltage regulation. Coordinated control of DAB converters and VSCs for mitigating frequency oscillations using cascaded droop-integrated Proportional Integral (PI) controllers is proposed. An aggregated low-frequency model of a DAB converter is considered in this work. The inertia of the DC link capacitor of the VSCs and battery is sequentially extracted to offer grid frequency support. In this work, the single droop control, dual droop control, grid-forming and Augmented Frequency Support (AFS) modes are explored to provide virtual inertia support to the grid.

Suggested Citation

  • Nargunadevi Thangavel Sampathkumar & Anbuselvi Shanmugam Velu & Brinda Rajasekaran & Kumudini Devi Raguru Pandu, 2025. "Virtual Inertia of Electric Vehicle Fast Charging Stations with Dual Droop Control and Augmented Frequency Support," Sustainability, MDPI, vol. 17(20), pages 1-23, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:8997-:d:1768550
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    References listed on IDEAS

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    1. Zhu, Xianwen & Xia, Mingchao & Chiang, Hsiao-Dong, 2018. "Coordinated sectional droop charging control for EV aggregator enhancing frequency stability of microgrid with high penetration of renewable energy sources," Applied Energy, Elsevier, vol. 210(C), pages 936-943.
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