Abst'/> Mooring design and selection for floating offshore wind turbines on intermediate and deep water depths
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Mooring design and selection for floating offshore wind turbines on intermediate and deep water depths

机译:中深水位浮动海上风力涡轮机的系泊设计和选择

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AbstractThe paper focuses on design and selection of mooring systems for Floating Offshore Wind Turbines (FOWTs) for intermediate and deep water depths, based on ultimate, accidental and fatigue limit state design conditions, with reference to power production, parked wind turbine and mooring line fault conditions. Platform static and dynamic offsets are determined by a purposely developed 6DOF programme in the frequency domain, accounting for first and second order motions. The Dutch tri-floater platform, together with the well-known 5 MW NREL wind turbine, is assumed as reference design. Besides, two sites, the one in the Southern North Sea, near Dogger Bank on water depths ranging from 50 up to 80 m, the other one in the Northern North Sea, near the Troll field area on water depths ranging from 200 up to 350 m, are assumed as candidate deployment areas, to investigate the effect of: (i) line number, (ii) platform admissible offset and line scope, (iii) offshore/onshore planned maintenance inspections and (iv) mooring technology on relevant installation and maintenance costs. A preliminary cost analysis is also performed and some recommendations are given to correctly choice the most suitable mooring configuration, as a function of water depth.HighlightsUltimate, accidental and fatigue limit state design of mooring lines in intermediate and deep water depths.Floating offshore wind turbines with tri-floater support structure.6 DOF frequency domain analysis based on both wave and low-frequency motions.Incidence of planned maintenance inspections on mooring design and selection.Mooring design and optimization for two sites in Southern and Northern North Sea.
机译: 摘要 基于最终极限,本文着重于中深水深浮式海上风力涡轮机(FOWT)的系泊系统的设计和选择。 ,意外和疲劳极限状态的设计条件,并参考电力生产,停放的风力涡轮机和系泊缆的故障条件。平台的静态和动态偏移由专门开发的6DOF程序在频域中确定,考虑了一阶和二阶运动。荷兰三叶平台与著名的5兆瓦NREL风力涡轮机一起作为参考设计。此外,还有两个地点,一个位于北海南部,靠近多格河岸,水深范围从50至80m;另一个地点位于北海北部,靠近巨魔场地区,水深范围从200至350假设m为候选部署区域,以调查以下方面的影响:(i)线号,(ii)平台允许的偏移量和线范围,(iii)海上/陆上计划维护检查,以及(iv)系泊技术对相关安装和维修费用。还进行了初步成本分析,并提出了一些建议,以根据水深正确选择最合适的系泊结构。 突出显示 中深水系泊缆的极限,意外和疲劳极限状态设计。 使用三重浮式海上风力发电机-floater支持结构。 基于波和低频运动的6自由度频域分析。 计划进行的系泊设计和选择维护检查的发生。 两个系泊设备的设计和优化

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