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Enhanced TVI for Grid Forming VSC under Unbalanced Faults

Author

Listed:
  • Markel Zubiaga

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain)

  • Carmen Cardozo

    (Réseau de Transport d’Electricité (RTE), La Defense, 92073 Paris, France)

  • Thibault Prevost

    (Réseau de Transport d’Electricité (RTE), La Defense, 92073 Paris, France)

  • Alain Sanchez-Ruiz

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain
    Electronic Technology Department, University of the Basque Country (UPV-EHU), 48013 Bilbao, Spain)

  • Eneko Olea

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain)

  • Pedro Izurza

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain)

  • Siam Hasan Khan

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain)

  • Joseba Arza

    (Ingeteam R&D Europe S. L., 48170 Zamudio, Spain)

Abstract

With an increasing capacity of inverter-based generation and with a 100% renewable energy power system on the horizon, grid forming converters have the potential to become the prevalent control mode in the grid. Thus, the correct performance of these devices is going to be crucial for system stability and security of supply. Most research related to the grid-forming control is focused on normal operating conditions, although significant effort has been devoted to current limitation strategies to ensure Low Voltage Ride Through (LVRT) capability. However, most contributions usually consider only balanced faults. This paper, proposes a new current limiting method based on the well-known threshold virtual impedance (TVI) that keeps the voltage source behaviour associated to the grid forming (GFM) capability, even when the current limit is reached, while reducing the voltage unbalance according to user-defined settings.

Suggested Citation

  • Markel Zubiaga & Carmen Cardozo & Thibault Prevost & Alain Sanchez-Ruiz & Eneko Olea & Pedro Izurza & Siam Hasan Khan & Joseba Arza, 2021. "Enhanced TVI for Grid Forming VSC under Unbalanced Faults," Energies, MDPI, vol. 14(19), pages 1-19, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6168-:d:644586
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    References listed on IDEAS

    as
    1. Alexandros G. Paspatis & George C. Konstantopoulos, 2019. "Voltage Support under Grid Faults with Inherent Current Limitation for Three-Phase Droop-Controlled Inverters," Energies, MDPI, vol. 12(6), pages 1-20, March.
    2. Markel Zubiaga & Alain Sanchez-Ruiz & Eneko Olea & Eneko Unamuno & Aitor Bilbao & Joseba Arza, 2020. "Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services," Energies, MDPI, vol. 13(17), pages 1-14, August.
    Full references (including those not matched with items on IDEAS)

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    Cited by:

    1. Juan Dolado Fernández & Joaquín Eloy-Garcia & Santiago Arnaltes & Jose Luis Rodríguez-Amenedo, 2023. "Sequence Control Strategy for Grid-Forming Voltage Source Converters Based on the Virtual-Flux Orientation under Balanced and Unbalanced Faults," Energies, MDPI, vol. 16(7), pages 1-24, March.

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