Wind field effect on the power generation and aerodynamic performance of offshore floating wind turbines

Li, Liang and Liu, Yuanchuan and Yuan, Zhiming and Gao, Yan (2018) Wind field effect on the power generation and aerodynamic performance of offshore floating wind turbines. Energy, 157. pp. 379-390. ISSN 1873-6785

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Abstract

This study is aimed at investigating wind field effect on the power generation and the aerodynamic performance of offshore floating wind turbines. For this purpose, three comparative wind fields are generated: a uniform wind field, a steady wind field with wind shear, and a turbulent wind field. Aero-hydro-servo coupled analysis is performed in time-domain to estimate how a referenced semi-submersible offshore floating wind turbine behaves in the three wind fields. The results reveal the importance of wind shear and inflow turbulence to the performance of the floating wind turbine. Thrust force and power generation become very unstable in the presence of inflow turbulence. Due to the control strategy of the wind turbine, the power generation is also correlated with operational state and turbulence frequency. Although wind shear has a tiny effect on the rotor performance, the local aero-dynamic load applied at a single blade experiences fluctuation with the presence of wind shear. It is also shown that the ultimate structural and fatigue damage loads at blade root are augmented by inflow turbulence and wind shear.

ORCID iDs

Li, Liang ORCID: https://orcid.org/0000-0002-8528-3171

Liu, Yuanchuan ORCID: https://orcid.org/0000-0002-5029-6212

Yuan, Zhiming ORCID: https://orcid.org/0000-0001-9908-1813

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  Item type:	Article
  ID code:	64595
  Dates:	Date Event 15 August 2018 Published 29 May 2018 Published Online 27 May 2018 Accepted
  Keywords:	wind field, inflow turbulence, wind shear, power generation, aerodynamic performance, offshore floating wind turbine, Naval architecture. Shipbuilding. Marine engineering, Ocean Engineering, Renewable Energy, Sustainability and the Environment
  Subjects:	Naval Science > Naval architecture. Shipbuilding. Marine engineering
  Department:	Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering
  Depositing user:	Pure Administrator
  Date deposited:	25 Jun 2018 15:51
  Last modified:	23 Sep 2021 06:49
  Related URLs:	Journal or Publication
  URI:	https://strathprints.strath.ac.uk/id/eprint/64595