Research on motion inhibition method using an innovative type of mooring system for spar floating offshore wind turbine

Research on motion inhibition method using an innovative type of mooring system for spar floating offshore wind turbine
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基于新型系泊系统的Spar浮式海上风力发电机运动抑制方法研究

DOI:
10.1016/j.oceaneng.2021.108644
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发表时间:
2021-03
期刊:
影响因子:
5
通讯作者:
Hongchao Lu
Hongchao Lu
中科院分区:
工程技术2区
文献类型:
--
作者:
Yuan Ma;Chaohe Chen;Tianhui Fan;Xinkuan Yan;Hongchao Lu

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与传统的海上浮式平台相比,由于风力发电机的存在,海上浮式风力发电机(FOWTs)会受到较大的风横倾力矩,产生较大的俯仰运动,给发电效率和结构安全性带来挑战。此外,与FOWT连接的动态缆索承受的载荷很大程度上受FOWT水平运动的影响。因此,水平和俯仰运动的抑制对FOWT至关重要。然而,传统的系泊系统主要抑制浮式结构物的水平运动。本文提出了一种创新型的系泊系统,以抑制FOWT的水平和俯仰运动。并将该新型系泊系统的分析结果与传统系泊系统的分析结果进行了比较。此外,还对系泊系统恢复力和力矩的产生机理进行了分析和讨论。
Compared with the conventional floating offshore platforms, the FOWTs (floating offshore wind turbines) are subjected to larger wind heeling moments to cause significant pitch motions which bring challenges to the power generation efficiency and structure safety, due to the existence of wind turbines. In addition, the dynamic cable connected with FOWT is subject to a load that is greatly affected by horizontal motions of FOWT. Therefore, the inhibitions of horizontal and pitch motions are vital to FOWT. However, conventional mooring systems mainly inhibit the horizontal motions of floating structures. In this paper, an innovative type of mooring system is proposed to inhibit both the horizontal and pitch motions of FOWT. The analytical results based on the innovative mooring system are compared with those of conventional mooring system. In addition, the mechanism of restoring forces and moments of mooring systems are analyzed and discussed.
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