The DOWEC Offshore Reference Windfarm: Analysis of Transportation for Operation and Maintenance

The DOWEC Offshore Reference Windfarm: Analysis of Transportation for Operation and Maintenance
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DOWEC 海上参考风电场:运营和维护运输分析

DOI:
10.1260/030952403322770986
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发表时间:
2003
期刊:
影响因子:
1.5
通讯作者:
W. Bierbooms
W. Bierbooms
中科院分区:
--
文献类型:
--
作者:
G. V. van Bussel;W. Bierbooms

文献摘要

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荷兰离岸风能转换器项目(Dow EC)旨在设计用于大型离岸农场的大型风力涡轮机。一个基准风电场被考虑在距离荷兰海岸43公里的地方,有80台风力涡轮机,每台装机容量为6兆瓦。本文对运维人员的接入方式进行了研究。这些方法包括:(I)充气艇(黄道带)、(Ii)特殊近海通道系统和(Iii)直升机。对于所考虑的方法,已经确定了操作极限,用最大平均风速和有效波高来表示。在NEXT数据库的基础上,确定了相应天气窗的统计数据。这些统计数据与故障统计数据和定期维护DEM以及风力涡轮机和其他海上风电场组件一起决定了其在特定地点的总体可用性。海上风电场的总体可用性估计是通过复杂的风电场内操作的蒙特卡罗模拟模型获得的。模拟结果表明,应采用至少82%的时间可访问性的访问方法。这排除了标准选项,例如直接充气船通道,以保持风电场利用率大于90%。
The Dutch Offshore Wind Energy Converter project (DOW EC) aims to design large wind turbines for application in large-scale offshore farms. A baseline windfarm has been considered 43 km off the Dutch coast, with 80 wind turbines, each of 6 MW capacity. In this paper, access methods for O&M crew have been investigated. The methods include: (i) inflatable boats (zodiacs), (ii) special offshore access systems and (iii) helicopters. For the methods considered, operational limits have been established, expressed as ‘maximum-mean’ wind speed and as significant wave height. On the basis of the NEXT database the statistics of the corresponding weather-windows have been determined. These statistics, together with the failure statistics and the regular maintenance dem and of the wind turbines and the other offshore windfarm components determine its overall-availability at the specific site. Estimates of this overall-availability of the offshore windfarm have been obtained with a sophisticated Monte Carlo simulation model of the operations within the windfarm. The simulations show that use should be made of access methods with which an accessibility of at least 82% of time can be achieved. This rules out standard options, e.g. direct inflatable boat access, in order to maintain a windfarm availability greater than 90%.