IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v12y2019i20p3879-d276104.html
   My bibliography  Save this article

Impact of Primary Frequency Control of Offshore HVDC Grids on Interarea Modes of Power Systems

Author

Listed:
  • Ali Bidadfar

    (Department of Wind Energy, Technical University of Denmark, Building 115, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark)

  • Oscar Saborío-Romano

    (Department of Wind Energy, Technical University of Denmark, Building 115, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark)

  • Vladislav Akhmatov

    (Energinet, Tonne Kjærsvej 65, 7000 Fredericia, Denmark)

  • Nicolaos A. Cutululis

    (Department of Wind Energy, Technical University of Denmark, Building 115, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark)

  • Poul E. Sørensen

    (Department of Wind Energy, Technical University of Denmark, Building 115, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark)

Abstract

Offshore high-voltage DC (HVDC) grids are developing as a technically reliable and economical solution to transfer more offshore wind power to onshore power systems. It is also foreseen that the offshore HVDC grids pave the way for offshore wind participation in power systems’ balancing process through frequency support. The primary frequency control mechanism in an HVDC grid can be either centralized using communication links between HVDC terminals or decentralized by the simultaneous use of DC voltage and frequency droop controls. This paper investigates the impact of both types of primary frequency control of offshore HVDC grids on onshore power system dynamics. Parametric presentation of power systems’ electro-mechanical dynamics and HVDC controls is developed to analytically prove that the primary frequency control can improve the damping of interarea modes of onshore power systems. The key findings of the paper include showing that the simultaneous use of frequency and DC voltage droop controls on onshore converters results in an autonomous share of damping torque between onshore power systems even without any participation of offshore wind farms in the frequency control. It is also found that the resulting damping from the frequency control of offshore HVDC is not always reliable as it can be nullified by the power limits of HVDC converters or wind farms. Therefore, using power oscillation damping control in parallel with frequency control is suggested. The analytical findings are verified by simulations on a three-terminal offshore HVDC grid.

Suggested Citation

  • Ali Bidadfar & Oscar Saborío-Romano & Vladislav Akhmatov & Nicolaos A. Cutululis & Poul E. Sørensen, 2019. "Impact of Primary Frequency Control of Offshore HVDC Grids on Interarea Modes of Power Systems," Energies, MDPI, vol. 12(20), pages 1-14, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3879-:d:276104
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/12/20/3879/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/12/20/3879/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Oscar Saborío-Romano & Ali Bidadfar & Ömer Göksu & Lorenzo Zeni & Nicolaos A. Cutululis, 2019. "Power Oscillation Damping from Offshore Wind Farms Connected to HVDC via Diode Rectifiers," Energies, MDPI, vol. 12(17), pages 1-15, September.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Rossano Musca & Francisco Gonzalez-Longatt & Cesar A. Gallego Sánchez, 2022. "Power System Oscillations with Different Prevalence of Grid-Following and Grid-Forming Converters," Energies, MDPI, vol. 15(12), pages 1-19, June.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3879-:d:276104. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.