Estimation of extreme wave and wind design parameters for offshore wind turbines in the Gulf of Maine using a POT method
Estimation of extreme wave and wind design parameters for offshore wind turbines in the Gulf of Maine using a POT method
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DOI：
10.1016/j.oceaneng.2015.04.086
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发表时间：
2015-08
影响因子：
5
通讯作者：
A. Viselli;G. Forristall;B. Pearce;H. Dagher
中科院分区：
文献类型：
--
作者：
A. Viselli;G. Forristall;B. Pearce;H. Dagher
利用缅因州海湾浮标资料计算了缅因州近海风力资源开发所需的设计参数。使用超过阈值的峰值（POT）极值估计技术来估计有效波高和平均相关峰值周期、8分钟平均风速和5秒平均阵风风速的极值。风切变系数和阵风因子也被估计。对缅因州近海风电行业可能感兴趣的五个地点的七到三十二年浮标数据进行了检查。浮标数据来自缅因州大学和国家海洋大气管理局。在这项研究中的极端显着波高的预测比较以及与过去的船上和事后预测开放水域的网站。较靠近海岸的地点与过去的预测有较大的差异，这是由于早期研究的区域尺度较大。极端风速和剪切系数与美国土木工程师协会公布的沿海陆上风速相当。
Design parameters needed for the development of Maine׳s offshore wind resource are calculated using Gulf of Maine buoy data. Extreme values of the significant wave height and mean associated peak period, eight minute average wind speed, and five second average gust wind speed are estimated using a Peaks Over Threshold (POT) extreme value estimation technique. Wind shear coefficients and gust factors are also estimated. Seven to thirty-two years of buoy data at five locations near areas of possible interest to Maine׳s offshore wind industry were examined. Buoy data was obtained from the University of Maine and the National Oceanic Atmospheric Administration. Predictions of extreme significant wave heights in this study compare well with past shipboard and hindcast predictions for open water sites. Sites closer to shore show larger differences from past predictions due to the large areal scale of the earlier studies. Extreme wind speeds and shear coefficients compare well with coastal onshore wind speeds published by the American Society of Civil Engineers.