Assessment of Current State of Mooring Design in the Danish Wave Energy Sector

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Abstract

The mooring system is a vital part of any floating wave energy converter, both in terms of ensuring station keeping but also as it constitutes a significant share of the total cost. Motivatedby the considerable amount of failures due to insufficient mooring and the cost of mooring today, the present study outlines the design procedure recommended by design standards and provides considerations on choice of tools for analysis. This is compared to the procedure used by four wave energy converter developers, to illustrate the state of their current mooring design. The study shows a clear tendency amongst the developers of using existing offshore tradition and some inconsistency in chosen design procedures and parameters, by means of varying analysis types, environmental conditions and level of details. The lack of details in the design means that for all the investigated developers, despite having an overall solution, no final design has been achieved yet and further investigation is needed.
Original languageEnglish
Title of host publicationProceedings of the 11th European Wave and Tidal Energy Conference
Number of pages9
PublisherTechnical Committee of the European Wave and Tidal Energy Conference
Publication date2015
Article number08B5-5-1
ISBN (Electronic)2309-1983
Publication statusPublished - 2015
EventEuropean Wave and Tidal Energy Conference - The LHEEA Laboratory at Ecole Centrale de Nantes, Nantes, France
Duration: 6 Sep 201511 Sep 2015
Conference number: 11

Conference

ConferenceEuropean Wave and Tidal Energy Conference
Number11
LocationThe LHEEA Laboratory at Ecole Centrale de Nantes
CountryFrance
CityNantes
Period06/09/201511/09/2015
SeriesEuropean Wave and Tidal Energy Conference Series
Number2015

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Bibliographical note

Proceedings published on usb for conference participants and will be published at EWTECs website http://www.ewtec.org/proceedings/.

Keywords

  • Wave energy converters
  • Mooring system
  • Quasistatic analysis
  • Dynamic analysis
  • Station keeping
  • Floating wave energy converters
  • Large wave energy converter
  • WEC

Cite this

Thomsen, J. B., Ferri, F., & Kofoed, J. P. (2015). Assessment of Current State of Mooring Design in the Danish Wave Energy Sector. In Proceedings of the 11th European Wave and Tidal Energy Conference [08B5-5-1] Technical Committee of the European Wave and Tidal Energy Conference. European Wave and Tidal Energy Conference Series, No. 2015