A comparison of AC and HVDC options for the connection of offshore wind generation in Great Britain

Elliott, Douglas and Bell, Keith R. W. and Finney, Stephen J. and Adapa, Ram and Brozio, Cornel and Yu, James and Hussain, Khadim (2016) A comparison of AC and HVDC options for the connection of offshore wind generation in Great Britain. IEEE Transactions on Power Delivery, 31 (2). pp. 798-809. ISSN 0885-8977 (https://doi.org/10.1109/TPWRD.2015.2453233)

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Abstract

This paper presents a comparison of two forms of cable connection of a distant offshore wind farm to a transmission system: AC and HVDC. The requirements of relevant industry standards in Great Britain (GB) that drive a connection design and, hence, its cost are highlighted along with an analysis of the ways in which AC cable connections might be made to comply while facilitating export of active power. Dynamic studies investigating responses to grid-side short circuit faults show that, in the particular scenarios studied, an AC connection of a wind farm in the place of a large synchronous generator is marginally detrimental while an HVDC connection is beneficial. A comparison of costs shows that the cross-over distance at which HVDC is cheaper than AC for wind farms of different sizes occurs at longer distances than have hitherto commonly been assumed, and AC connections benefit from reactive compensation not only at the point of common coupling and wind farm end but also at the connection mid-point.

ORCID iDs

Elliott, Douglas, Bell, Keith R. W. ORCID logoORCID: https://orcid.org/0000-0001-9612-7345, Finney, Stephen J. ORCID logoORCID: https://orcid.org/0000-0001-5039-3533, Adapa, Ram, Brozio, Cornel, Yu, James and Hussain, Khadim;
  • Item type:Article
    ID code:53982
    Dates:
    Date
    Event
    30 April 2016
    Published
    7 July 2015
    Published Online
    9 June 2015
    Accepted
    Notes:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:14 Aug 2015 14:26
    Last modified:30 Nov 2024 01:08
    URI:https://strathprints.strath.ac.uk/id/eprint/53982
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