Effect of wind directionality on fatigue life of monopile support structures for offshore wind turbines
Effect of wind directionality on fatigue life of monopile support structures for offshore wind turbines
复制标题
风向对海上风机单桩支撑结构疲劳寿命的影响
DOI：
10.1088/1742-6596/1618/5/052080
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Hines, E M
中科院分区：
文献类型：
--
作者：
Nozari, A;Kuchma, D;Hines, E M
由于国内缺乏海上风电技术经验，美国海上风电行业的成本可能会更高。与海上风电场相关的资本支出的一个关键因素是海上风机支撑结构的成本。因此，提高支撑结构在极限和疲劳载荷条件下的可靠性将有助于降低海上风电的平准化能源成本。本研究提出了一个框架，通过假设每个风向具有独特且独立的风速分布来解释风向性，并研究其对海上风力涡轮机支撑结构疲劳寿命的影响。本研究使用了美国东北部水域靠近国家海洋和大气管理局浮标的潜在风场的单桩支撑结构。对风力发电机正常运行条件下进行了疲劳损伤评估，并考虑了单桩泥线水平处的阴极保护和自由腐蚀条件，给出了结果。我们发现，由于考虑了风向，预测的疲劳损伤的位置和程度会有所不同。
The US offshore wind industry can expect higher costs due to the lack of domestic experience with offshore wind technology. A key factor of the capital expenditure related to offshore wind farms is the cost of the support structures of offshore wind turbines. Therefore, improvements to the reliability of support structures under ultimate and fatigue loading conditions will help reduce the levelized cost of energy of offshore wind. This study presents a framework that accounts for the wind directionality by assuming a distinct and independent wind speed distribution per each wind direction and investigates its effect on the fatigue life of offshore wind turbine support structures. A monopile support structure in a potential wind site close to a National Oceanic and Atmospheric Administration buoy in the north-eastern US waters is used in this study. Fatigue damage assessment is performed for the normal operational condition of wind turbine, and the results are presented considering both cathodic protection and free corrosion conditions at the mudline level of the monopile. The location and extent of the predicted fatigue damages are found to vary due to accounting for the wind directionality.
影响因子：
8.7
作者：
Haefele, Jan;Huebler, Clemens;Rolfes, Raimund
通讯作者：
Rolfes, Raimund