NDLI: Comparisons Between the Typical Wind Shear and the Wind Shear Induced by Platform Pitch Motion for an Offshore Floating Wind Turbine

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Retracted: “Kinematic Analysis of the Motion of a Six Degrees of Freedom Wave Energy Converter Based on the Concept of the Stewart-Gough Platform” [ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, Volume 10: Ocean Renewable Energy, Madrid, Spain, June 17–22, 2018, Conference Sponsors: Ocean, Offshore and Arctic Engineering Division, ISBN: 978-0-7918-5131-9. Paper No. OMAE2018-78601, pp. V010T09A047; 10 pages, doi:10.1115/OMAE2018-78601]

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Comparisons Between the Typical Wind Shear and the Wind Shear Induced by Platform Pitch Motion for an Offshore Floating Wind Turbine

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Wen, Binrong Zhang, Qi Wei, Sha Tian, Xinliang Dong, Xingjian Peng, Zhike
Copyright Year	2018
Abstract	The pitch motion of the Offshore Floating Wind Turbine (OFWT) introduces additional wind speed to the rotor. The additional wind speed distributes linearly along the vertical altitude, which is called as the platform-pitch-induced wind shear effect in this paper. Comparisons between the typical wind shear and the platform-pitch-induced wind shear are conducted with the Free Vortex Method (FVM) for the NREL 5MW baseline wind turbine. It is found that the platform-pitch-induced wind shear is the results of the rotor rotating and platform pitching, and its wind speed profile is time-varying. At the designed point of tip speed ratio of 7, the averaged power output is reduced slightly under the typical wind shear while it is increased by 4% under the platform-pitch-induced wind shear. The aerodynamic loads of the OFWT under the platform pitch-induced wind shear experience much more considerable variations than the typical wind shear, which introduce severer fatigue damages to the OFWT components. For the sake of the safety of the OFWT, advanced control strategy and superior design should be developed to mitigate the platform pitch motion.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
File Format	PDF
ISBN	9780791851319
DOI	10.1115/OMAE2018-77797
Volume Number	Volume 10: Ocean Renewable Energy
Conference Proceedings	ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2018-06-17
Publisher Place	Madrid, Spain
Access Restriction	Subscribed
Subject Keyword	Design Floating wind turbines Rotors Vortices Wind velocity Safety Wind turbines Wind shear Fatigue damage Stress
Content Type	Text
Resource Type	Article

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