Design and installation of a hybrid-spar floating wind turbine platform

Tomoaki Utsunomiya, Iku Sato, Osamu Kobayashi, Takashi Shiraishi, Takashi Harada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

A floating offshore wind turbine platform supporting a 2MW downwind-type turbine was successfully installed offshore of Kabashima Island, Goto city, Nagasaki prefecture, Japan on October 18, 2013. It has been operating since October 28, 2013 as the first grid-connected multi-megawatt floating wind turbine in Japan. The spar platform has a unique feature, that is, the upper part of the spar is made of steel (as usual) but the lower part is made of precast prestressed concrete (PC). Such a configuration is referred to as hybrid-spar. In this paper, the design methodology of the hybrid spar is presented-including environmental design conditions, DLCs (Design Load Cases), dynamic analysis, fatigue analysis, etc. Also, the installation procedure is presented briefly.

Original languageEnglish
Title of host publicationOcean Renewable Energy
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791856574
DOIs
Publication statusPublished - 2015
EventASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015 - St. John's, Canada
Duration: May 31 2015Jun 5 2015

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume9

Other

OtherASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015
CountryCanada
CitySt. John's
Period5/31/156/5/15

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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  • Cite this

    Utsunomiya, T., Sato, I., Kobayashi, O., Shiraishi, T., & Harada, T. (2015). Design and installation of a hybrid-spar floating wind turbine platform. In Ocean Renewable Energy (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 9). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2015-41544