Coordinated Voltage and Reactive Power Control Scheme of HVAC Meshed Offshore Grid of Offshore Wind Power Plant at Kriegers Flak

Qiuwei Wu, Tibor Takarics, Vladislav Akhmatov

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

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    Abstract

    The Kriegers Flak Combined Grid Solution (KF CGS) is the first hybrid-asset project utilizing an offshore HVAC/HVDC interconnector through already established and undercommissioning large offshore wind power plants between East Denmark and Germany in the Baltic Sea. In total, the KF CGS utilizes above 520 km HVAC cables, and, in the Danish side, above 200 km 220 kV cables arranged into a meshed offshore transmission grid. As the cables approach critical lengths, the reactive power generation is dependant on the active power transfer. In the Danish side, the control is realized by an automatic voltage and reactive power control (AVR/RPC) of several switchable and variable reactors and transformers with tap-position controllers, and the Wind Power Plant Controllers (WPPC). In the German side, the voltage control is achieved by the HVDC Back-to-Back and WPPC and part of the Optimal Power Flow (OPF) by the Master Controller for Interconnector Operation (MIO). This paper introduces the overall control of the KF CGS and presents the proposed coordinated voltage and reactive power control and assets on the Danish side of the KF CGS interconnector.
    Original languageEnglish
    Title of host publicationProceedings of IET RPG 2019
    Number of pages8
    PublisherInstitution of Engineering and Technology
    Publication date2020
    ISBN (Electronic)978-1-83953-125-5
    DOIs
    Publication statusPublished - 2020
    EventInternational Conference on Renewable Power Generation 2019 - Holiday Inn Shanghai Hongqiao West, Shanghai, China
    Duration: 24 Oct 201925 Oct 2019
    http://rpg2019.events.theiet.org.cn/

    Conference

    ConferenceInternational Conference on Renewable Power Generation 2019
    LocationHoliday Inn Shanghai Hongqiao West
    Country/TerritoryChina
    CityShanghai
    Period24/10/201925/10/2019
    Internet address

    Keywords

    • Voltage and Reactive Power Control
    • Offshore Wind Power
    • Meshed Offshore Grid
    • Hybrid-Asset

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