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Co-located wind-wave farm synergies (Operation & Maintenance): A case study

机译：并置的风电场协同效应（运营与维护）：案例研究

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摘要

Operation and maintenance can jeopardise the financial viability of an offshore wind energy project due to the cost of downtime, repairs and, above all, the inevitable uncertainties. The variability of wave climate can impede or hinder emergency repairs when a failure occurs, and the resulting delays imply additional costs which ultimately reduce the competitiveness of offshore wind energy as an alternative to fossil fuels. Co-located wind turbines and Wave Energy Converters (WECs) are proposed in this paper as a novel solution: the reduction of the significant wave height brought about by the WECs along the periphery of the wind farm results in a milder wave climate within the farm. This reduction, also called shadow effect, enlarges weather windows for Operation & Maintenance (O&M). The objective of this paper is to investigate the increase in the accessibility time to the turbines and to optimise the layout for the co-located wind-wave farm in order to maximise this time. The investigation is carried out through a case study: Alpha Ventus, an operating offshore wind farm. To maximise the reduction of wave height in the turbine area no fewer than 15 layouts are tested using high-resolution numerical modelling, and a sensitivity analysis is conducted. The results show that, thanks to the wave energy extraction by the WECs, weather windows (access time) can increase very significantly - over 80%. This substantial effect, together with other benefits from the combination of wave and offshore wind power in a co-located farm (common electrical infrastructures, shared O&M equipment and crews, etc.) will enhance the economic viability of these marine renewables, and hence their potential to reduce our carbon footprint on the planet.
机译：由于停机，维修和尤其是不可避免的不确定性所带来的成本，运营和维护可能会危害海上风能项目的财务可行性。波浪气候的可变性会在发生故障时阻碍或阻碍紧急维修，而由此造成的延误意味着额外的成本，最终会降低海上风能作为化石燃料替代品的竞争力。本文提出了并置的风力涡轮机和波浪能转换器（WEC）作为一种新颖的解决方案：减少WEC沿风电场外围带来的显着波高会导致电场内的海浪气候温和。这种减少，也称为阴影效应，扩大了运维（O＆M）的天气窗口。本文的目的是研究可到达涡轮机的时间的增加，并优化位于同一地点的风电场的布局，以使该时间最大化。该调查是通过一个案例研究进行的：Alpha Ventus，一个正在运营的海上风电场。为了最大程度地减小涡轮机区域内的波高，使用高分辨率数值建模对不少于15个布局进行了测试，并进行了灵敏度分析。结果表明，由于WEC提取了波能，天气窗口（访问时间）可以显着增加-超过80％。这种实质性的影响，以及在同处农场中将波浪和海上风力发电相结合的其他好处（公共电力基础设施，共享的O＆M设备和船员等），将增强这些海洋可再生能源的经济生存能力，并因此提高其经济可行性。减少我们在地球上的碳足迹的潜力。

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  • 来源
    《Energy Conversion & Management》 |2015年第2期|63-75|共13页
  • 作者

    S. Astariz; C. Perez-Collazo; J. Abanades; G. Iglesias;

  • 作者单位

    University of Santiago de Compostela, EPS, Hydraulic Eng., Campus Univ. s, 27002 Lugo, Spain;

    University of Plymouth, School of Marine Science and Engineering, Drake Circus, Plymouth PL4 8AA, UK;

    University of Plymouth, School of Marine Science and Engineering, Drake Circus, Plymouth PL4 8AA, UK;

    University of Plymouth, School of Marine Science and Engineering, Drake Circus, Plymouth PL4 8AA, UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Wave energy; Wind energy; Co-located wind-wave farm; Weather windows; OM; Shadow effect;

    机译：波能;风能;并置风电场天气窗口;运维;阴影效果;

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