Motion performance analysis of a floating offshore wind turbine with single-point mooring system under misaligned wind and wave condition

被引：0
|
作者：
Qu X. [1 ,2 ]
Tang Y. [1 ,2 ]
Li Y. [1 ,2 ]
Zhai J. [1 ,2 ]
机构：
[1] School of Civil Engineering, Tianjin University, Tianjin
[2] State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 08期
关键词：
Automatic yaw control; Coupling analysis model; FAST; Floating offshore wind turbine; Misaligned environmental loads; Semi-submersible floating foundation; Single-point mooring system;
D O I：
10.11990/jheu.201701034
中图分类号：
学科分类号：
摘要：
An analytical model coupling wind turbine, tower, floating foundation, and mooring line was established for a novel floating offshore wind turbine with a weathervane function and moored by the single-point mooring system. The aerodynamic load was calculated using the blade element momentum theory, and the wave load was calculated using a hybrid model. The numerical simulation of the novel floating wind turbine was carried out using the software FAST. The weathervane function and motion performance of the floating offshore wind turbine with the single-point mooring system were studied under different directions of environmental loads. The time-domain calculation results show that the floating wind turbine with the single-point mooring system can still realize the weathervane function when the incident directions of wind load and wave are different. An analysis of the frequency domain results showed that that wind load mainly affects the equilibrium location of the floating foundation, and the wave load mainly affects the oscillation near the equilibrium location. Thus, the thrust acting on the wind wheel is more dominant than the steady drift force acting on the floating foundation. © 2018, Editorial Department of Journal of HEU. All right reserved.
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页码：1328 / 1336
页数：8
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