量化低频疲劳动力学对海上风力涡轮机基础的影响:比较研究

IF 3.6 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Negin Sadeghi, Pietro D'Antuono, N. Noppe, Koen Robbelein, W. Weijtjens, C. Devriendt
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引用次数: 0

摘要

摘要。海上风力涡轮机支撑结构是疲劳驱动设计,受到风、波浪和涡轮机控制的各种循环载荷的影响。虽然大多数风力涡轮机的载荷和海洋气象数据是在10分钟的短期间隔内收集的,但一些最大的疲劳循环周期超过了1天。因此,在使用行业标准的短期窗口时,没有充分考虑这些低频疲劳动力学(lffd)。为了在行业实践中恢复这些lffd,作者实施了一个短期到长期的因素,应用于累积的短期损害,同时保持10分钟数据的工作能力。在目前的工作中,我们研究了LFFD对风电场前后弯矩和侧面弯矩损伤的影响,以及传感器的应变测量及其在风电场内部和跨风电场的变化。虽然不同地点的结果差异很大,但对于当前地点和应力寿命(SN)曲线斜率为m=5的情况,高达65%的损伤与lffd直接相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantifying the effect of low-frequency fatigue dynamics on offshore wind turbine foundations: a comparative study
Abstract. Offshore wind turbine support structures are fatigue-driven designs subject to a wide variety of cyclic loads from wind, waves, and turbine controls. While most wind turbine loads and metocean data are collected at short-term 10 min intervals, some of the largest fatigue cycles have periods over 1 d. Therefore, these low-frequency fatigue dynamics (LFFDs) are not fully considered when working with the industry-standard short-term window. To recover these LFFDs in the state-of-the-industry practices, the authors implemented a short- to long-term factor applied to the accumulated short-term damages while maintaining the ability to work with the 10 min data. In the current work, we study the LFFD impact on the damage from the fore–aft and side–side bending moments and the sensors' strain measurements and their variability within and across wind farms. While results might vary strongly between sites, for the current site and a stress–life (SN) curve slope of m=5, up to 65 % of damage is directly related to LFFDs.
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来源期刊
Wind Energy Science
Wind Energy Science GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-
CiteScore
6.90
自引率
27.50%
发文量
115
审稿时长
28 weeks
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