Primary Frequency Support from Offshore Wind Power Plants Connected to HVDC Grids

Ali Bidadfar*, Oscar Saborío-Romano, Jayachandra Naidu Sakamuri, Müfit Altin, Nicolaos Antonio Cutululis, Poul E. Sørensen

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    Contribution to the power systems’ frequency support is expected to be one of the essential ancillary services that wind power plants (WPPs) shall provide. The high-voltage DC (HVDC) connected offshore WPPs may provide this service with and without using fast communication links between onshore and offshore. In the case of offshore HVDC grid, implementing the communication-less frequency support is challenging. Although it increases the reliability of the frequency control, among other challenges, it is not straightforward to comply with relevant grid code requirements. In this paper, this issue is mathematically described and a static model is developed to calculate the deviation of various electrical parameters of an HVDC grid in case of frequency drop on the land ac systems. A solution for the aforementioned problem is presented and its associated concerns are addressed. The study is verified by simulations of a four terminals dc grid with two offshore WPPs and two inland ac systems.
    Original languageEnglish
    Title of host publicationProceedings of the 2019 IEEE Milan PowerTech
    Number of pages6
    PublisherIEEE
    Publication date2019
    Pages1-6
    ISBN (Print)978-1-5386-4723-3
    ISBN (Electronic)978-1-5386-4722-6
    DOIs
    Publication statusPublished - 2019
    Event13th IEEE PowerTech Milano 2019: Leading innovation for energy transition - Bovisa Campus of Politecnico di Milano, Milano, Italy
    Duration: 23 Jun 201927 Jun 2019
    Conference number: 13
    http://ieee-powertech.org/

    Conference

    Conference13th IEEE PowerTech Milano 2019
    Number13
    LocationBovisa Campus of Politecnico di Milano
    Country/TerritoryItaly
    CityMilano
    Period23/06/201927/06/2019
    OtherPowerTech is the anchor conference of the IEEE Power & Energy Society (PES) in Europe
    Internet address
    SeriesProceedings of the IEEE
    ISSN0018-9219

    Keywords

    • Droop control
    • frequency support
    • HVDC
    • offshore wind

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