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Definition and Interpretation of Wind Farm Efficiency in Complex Terrain: A Discussion

机译:复杂地形中风电场效率的定义和解释:讨论

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摘要

The exploitation of wind turbines in complex terrain has recently been growing. The comprehension of wind flow, especially in the downstream area, is by itself a challenging task in complex terrain: even more so, it is difficult to account for the mixing between terrain effects and the wake interactions between nearby turbines. Efficiency is one of the simplest and meaningful metrics for quantifying the impact of wakes on wind farm production, but its definition is well established basically only for offshore wind farms. In this work, the definition of wind farm efficiency is, therefore, discussed, based on the critical points arising in complex terrain, where there can be at the same time a considerable variation of free wind flow along the layout and a directional distortion of the wakes, induced by the terrain. In this work, operational data of a test case wind farm sited in a very complex terrain, featuring 17 multimegawatt wind turbines, are elaborated and inspire a discussion and a novel definition of efficiency, that restores in the complex terrain case the meaning of the efficiency.
机译:最近,在复杂地形中对风力涡轮机的开发正在增长。在复杂地形中,尤其是在下游地区,对风流的理解本身就是一项艰巨的任务:更重要的是,很难解释地形效应与附近涡轮之间的尾流相互作用之间的混合。效率是量化尾流对风电场生产影响的最简单且有意义的指标之一,但其定义基本上仅适用于海上风电场。因此,在这项工作中,将基于复杂地形中出现的临界点来讨论风电场效率的定义,在这些临界点上,自由风流沿布局的同时可能会有相当大的变化,而风场的方向会发生扭曲。地形引起的苏醒。在这项工作中,详细阐述了一个位于非常复杂地形中的测试用例风电场的运行数据,其中包括17兆瓦级风力涡轮机,并激发了对效率的讨论和新颖的定义,从而在复杂地形中恢复了效率的含义。 。

著录项

  • 来源
    《Journal of Energy Resources Technology》 |2019年第5期|055501.1-055501.7|共7页
  • 作者单位

    Univ Perugia, Dept Engn, Via G Duranti 93, I-06125 Perugia, Italy;

    Univ Perugia, Dept Engn, Via G Duranti 93, I-06125 Perugia, Italy;

    Renvico Srl, Via San Gregorio 34, I-20124 Milan, Italy;

  • 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
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