Assessment of transmission network connection solutions based on HVAC for offshore wind

Abstract The diffusion of offshore wind power plants (OWPPs), useful to fulfil renewable diffusion policy targets, implies several technological challenges for integration in power transmission network. The definition of the OWPP connection to the transmission network affects possible exploitation o...

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Main Authors: Mattia Deriu, Michela Migliori, Corrado Gadaleta, Marco Cortese, Enrico Maria Carlini, Maria Dicorato, Giuseppe Forte, Gioacchino Tricarico
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.13252
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author Mattia Deriu
Michela Migliori
Corrado Gadaleta
Marco Cortese
Enrico Maria Carlini
Maria Dicorato
Giuseppe Forte
Gioacchino Tricarico
author_facet Mattia Deriu
Michela Migliori
Corrado Gadaleta
Marco Cortese
Enrico Maria Carlini
Maria Dicorato
Giuseppe Forte
Gioacchino Tricarico
author_sort Mattia Deriu
collection DOAJ
description Abstract The diffusion of offshore wind power plants (OWPPs), useful to fulfil renewable diffusion policy targets, implies several technological challenges for integration in power transmission network. The definition of the OWPP connection to the transmission network affects possible exploitation of the assets, involves an evaluation of active power losses and loadability and points out the need for compensation devices, in order to comply with connection rules fixed by the grid operator. This paper proposes a methodology to determine the most suitable electric connection for an OWPP based on high‐voltage alternating current (HVAC) cables, for providing indications for transmission system operators. In particular, different HVAC connection schemes for OWPPs are analysed, focusing on new 66 kV standard voltage and high‐voltage levels, providing technical insight on transmission cable optimal operation conditions. An economic analysis is carried out by proper estimation of construction costs and production forecast, accounting for active power losses and reliability impact. The most suitable connection solution depending on OWPP size and distance in Italian framework is evaluated by means of synthetic techno‐economic indicators, further analysing possible sensitivities of energy price and capacity factor.
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publishDate 2024-12-01
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series IET Generation, Transmission & Distribution
spelling doaj-art-41e9b301dd94426da9ccdd5a7fcca1732025-08-20T03:13:42ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952024-12-0118244209422010.1049/gtd2.13252Assessment of transmission network connection solutions based on HVAC for offshore windMattia Deriu0Michela Migliori1Corrado Gadaleta2Marco Cortese3Enrico Maria Carlini4Maria Dicorato5Giuseppe Forte6Gioacchino Tricarico7Major Projects and International Development Terna S.p.A. Rome ItalyStrategy, Development, Dispatching Terna S.p.A. Rome ItalyStrategy, Development, Dispatching Terna S.p.A. Rome ItalyMajor Projects and International Development Terna S.p.A. Rome ItalyStrategy, Development, Dispatching Terna S.p.A. Rome ItalyDepartment of Electrical and Information Engineering Politecnico di Bari Bari ItalyDepartment of Electrical and Information Engineering Politecnico di Bari Bari ItalyDepartment of Electrical and Information Engineering Politecnico di Bari Bari ItalyAbstract The diffusion of offshore wind power plants (OWPPs), useful to fulfil renewable diffusion policy targets, implies several technological challenges for integration in power transmission network. The definition of the OWPP connection to the transmission network affects possible exploitation of the assets, involves an evaluation of active power losses and loadability and points out the need for compensation devices, in order to comply with connection rules fixed by the grid operator. This paper proposes a methodology to determine the most suitable electric connection for an OWPP based on high‐voltage alternating current (HVAC) cables, for providing indications for transmission system operators. In particular, different HVAC connection schemes for OWPPs are analysed, focusing on new 66 kV standard voltage and high‐voltage levels, providing technical insight on transmission cable optimal operation conditions. An economic analysis is carried out by proper estimation of construction costs and production forecast, accounting for active power losses and reliability impact. The most suitable connection solution depending on OWPP size and distance in Italian framework is evaluated by means of synthetic techno‐economic indicators, further analysing possible sensitivities of energy price and capacity factor.https://doi.org/10.1049/gtd2.13252high‐voltage alternating currentlossesoffshore installationspower generation economicspower system interconnectionreactive power
spellingShingle Mattia Deriu
Michela Migliori
Corrado Gadaleta
Marco Cortese
Enrico Maria Carlini
Maria Dicorato
Giuseppe Forte
Gioacchino Tricarico
Assessment of transmission network connection solutions based on HVAC for offshore wind
IET Generation, Transmission & Distribution
high‐voltage alternating current
losses
offshore installations
power generation economics
power system interconnection
reactive power
title Assessment of transmission network connection solutions based on HVAC for offshore wind
title_full Assessment of transmission network connection solutions based on HVAC for offshore wind
title_fullStr Assessment of transmission network connection solutions based on HVAC for offshore wind
title_full_unstemmed Assessment of transmission network connection solutions based on HVAC for offshore wind
title_short Assessment of transmission network connection solutions based on HVAC for offshore wind
title_sort assessment of transmission network connection solutions based on hvac for offshore wind
topic high‐voltage alternating current
losses
offshore installations
power generation economics
power system interconnection
reactive power
url https://doi.org/10.1049/gtd2.13252
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AT michelamigliori assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT corradogadaleta assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT marcocortese assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT enricomariacarlini assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT mariadicorato assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT giuseppeforte assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind
AT gioacchinotricarico assessmentoftransmissionnetworkconnectionsolutionsbasedonhvacforoffshorewind