Influence of an Integral Heave Plate on the Dynamic Response of Floating Offshore Wind Turbine Under Operational and Storm Conditions

Yichen Jiang, Guanqing Hu, Zhi Zong, Li Zou and Guoqing Jin
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Yichen Jiang: School of Naval Architecture, Dalian University of Technology, Dalian 116024, China
Guanqing Hu: School of Naval Architecture, Dalian University of Technology, Dalian 116024, China
Zhi Zong: School of Naval Architecture, Dalian University of Technology, Dalian 116024, China
Li Zou: School of Naval Architecture, Dalian University of Technology, Dalian 116024, China
Guoqing Jin: School of Naval Architecture, Dalian University of Technology, Dalian 116024, China

Energies, 2020, vol. 13, issue 22, 1-18

Abstract: The hydrodynamic performance of the floating foundation for offshore wind turbines is essential to its stability and energy harvesting. A semi-submersible platform with an integral heave plate is proposed in order to reduce the vertical motion responses. In this study, we compare the heave, pitch, and roll free decay motions of the new platform with a WindFloat-type platform based on Reynolds-Averaged Navier-Stokes simulations. The differences of the linear and quadratic damping properties between these platforms are revealed. Then, a FAST (Fatigue, Aerodynamics, Structures, and Turbulence) model with the consideration of fluid viscosity effects is set up to investigate the performance of the new platform under storm and operational conditions. The time-domain responses, motion spectra, and the mooring-tension statistics of these two platforms are evaluated. It is found that the integral heave plate can increase the viscous hydrodynamic damping, significantly decrease the heave and pitch motion responses, and increase the safety of the mooring cables, especially for the storm condition.

Keywords: offshore wind energy; floating offshore wind turbine; hydrodynamic performance; integral damping plate; FAST (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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