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Rational upscaling of a semi-submersible floating platform supporting a wind turbine

Rational upscaling and modelling of a semi-submersible floating offshore wind turbine
: Leimeister, M.; Bachynski, E.; Muskulus, M.; Thomas, P.

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Energy Procedia 94 (2016), pp.434-442
ISSN: 1876-6102
Deep Sea Offshore Wind R&D Conference (DeepWind) <13, 2016, Trondheim>
Journal Article, Conference Paper, Electronic Publication
Fraunhofer IWES ()
offshore wind energy; semi-submersible floating platform; upscaling; wind turbine

This work examines the procedure of upscaling of a semi-submersible platform in order to support a predefined wind turbine. As a result of technological progress and design changes, basic scaling based on the turbine rating cannot be used directly. Furthermore, additional factors that floating structures have to deal with - like coupled dynamic motions, wave interaction, low frequency response and mooring system - have to be considered and included in the upscaling procedure. It is shown and discussed here, how to develop a rational upscaling process for a semi-submersible structure, under all these constraints, when the goal is to find a reasonable design of a platform, which would fit a predefined wind turbine, is producible, and has realistic dynamic behavior.