Studies for Characterisation of Electrical Properties of DC Collection System in Offshore Wind Farms

Yu-Hsing Chen, Catalin Gabriel Dincan, Rolant Joannesarson Olsen, Marie-Christine Schimmelmann, Philip Carne Kjær, Claus Leth Bak

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

5 Citations (Scopus)

Abstract

Offshore HVDC-connected wind farms where the wind plant power collection network becomes DC, rather than AC, offer reduced electrical losses, lower equipment ratings potentially leading to lower bill-of-material cost, and undiminished functionality. However, no standards exist for an offshore medium-voltage DC power collection cable-based system, routing power from MVDC wind turbines all the way to the HVDC export cable. To progress, it is therefore important to establish some common reference for the design and performance of the components needed in an MVDC collection network. Any suggested MVDC collection solution must be possible to characterize and evaluate through a series of case studies. This paper proposes a methodology to simulate the MVDC collection network and thereby find suitable ratings of its components. The methodology is intended to allow studies on any configuration of the MVDC power collection, regardless of choice of turbine converter circuit, MVDC cable configuration, use of DC circuit breakers, substation converter circuit, control and protection. The paper presents the necessary list of studies, and includes examples of simulation results for an exemplary MVDC wind power plant.
Original languageEnglish
Title of host publicationProceedings of CIGRÉ general session 2016
Number of pages13
PublisherCIGRE (International Council on Large Electric Systems)
Publication dateAug 2016
Article numberB4-301
Publication statusPublished - Aug 2016
EventCigré Session - Paris, France
Duration: 21 Aug 201626 Aug 2016
Conference number: 46

Conference

ConferenceCigré Session
Number46
Country/TerritoryFrance
CityParis
Period21/08/201626/08/2016

Keywords

  • Offshore wind power
  • MVDC power collection
  • VSC-HVDC
  • DC/DC conversion

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