The effects of wind-induced inclination on the dynamics of semi-submersible floating wind turbines in the time domain

RENEWABLE ENERGY

卷:88

Article

Antonutti, Raffaello^1,2,3  Peyrard, Christophe^1,3  Johanning, Lars^2,5  Incecik, Atilla^2,6  Ingram, David^2,4 

[1] EDF R&D Elect France Res & Dev, 6 Quai Watier, F-78400 Chatou, France

[2] Univ Edinburgh, Ind Doctoral Ctr Offshore Renewable Energy, Kings Bldg, Edinburgh EH9 3JL, Midlothian, Scotland

[3] Univ Paris Est, St Venant Hydraul Lab, EDF, ENPC,Cerema, 6 Quai Watier, F-78400 Chatou, France

[4] Univ Edinburgh, Sch Engn, Inst Energy Syst, Kings Bldg, Edinburgh EH9 3JL, Midlothian, Scotland

[5] Univ Exeter, Renewable Energy Res Grp, Coll Engn Math & Phys Sci, Penryn Campus, Penryn TR10 9EZ, Cornwall, England

[6] Univ Strathclyde, Dept Naval Architecture Ocean & Marine Engn, Glasgow G4 0LZ, Lanark, Scotland

关键词: Floating;    Wind;    Turbine;    Semi-submersible;    Large-angle;    Inclination;   

DOI  :  10.1016/j.renene.2015.11.020

来源: Elsevier

【 摘 要 】

This study focusses on the coupling effects arising from the changes in the hydrodynamic behaviour of a semi-submersible floating wind turbine when it undergoes large inclinations under wind loading. By means of a range of time-domain simulations, it is shown that both the hull geometric nonlinearity effect and the alteration of viscous hydrodynamic forces can significantly affect the dynamics of a typical floating wind turbine operating in waves at rated conditions. The consequences of said effects for both aligned and misaligned wind and waves are explored. In general terms inclinations are found to increase motions, where the modes that are more affected depend on the relative direction between incident wind and waves. Understanding the sources of aero-hydrodynamic coupling is key to providing sound design and modelling guidelines for the coming generation of floating wind turbines. (C) 2015 The Authors. Published by Elsevier Ltd.

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