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Wind Turbine Wake Definition and Identification Using Velocity Deficit and Turbulence Profile

机译:利用速度赤字和湍流剖面确定和识别风力涡轮机尾迹

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摘要

A method of wake determination is proposed where a wind turbine rotor wake is defined as the downstream wind velocity deficit region surrounded by increased turbulence creating a local maxima ring of turbulence. This definition creates a non-arbitrary wake boundary and provides criteria for more consistent wake identification and tracking than other methods. The definitive boundary allows for the separation of atmospheric regions and wake regions, facilitating the characterization of wake flow as it differs from atmospheric flow even at high wind turbine yaw offsets and in unstable atmospheric conditions. This definition can also be used to evaluate the effect of wakes on downstream turbines or wake control technologies such as wake steering. The proposed wake tracking method was shown to be robust for measurements at different inflow conditions and matched well with simulated, known wake positions.
机译:提出了一种确定尾流的方法,其中将风力涡轮机转子尾流定义为被增加的湍流围绕的下游风速不足区域,从而形成局部的最大湍流环。该定义创建了一个非任意的唤醒边界,并提供了比其他方法更一致的唤醒识别和跟踪的标准。明确的边界允许将大气区域和尾流区域分开,从而简化了尾流的特征,因为即使在高风力涡轮机偏航偏移和不稳定的大气条件下,尾流也不同于大气流。该定义还可用于评估尾流对下游涡轮机或尾流控制技术(例如尾流转向)的影响。所提出的尾流跟踪方法显示出对于在不同流入条件下的测量是鲁棒的,并且与模拟的已知尾流位置很好地匹配。

著录项

  • 来源
    《Wind energy symposium 2018》|2018年|129-137|共9页
  • 会议地点 Kissimmee(US)
  • 作者单位

    Sandia National Laboratories, Albuquerque. NM. 87185;

    Sandia National Laboratories, Albuquerque. NM. 87185;

    Sandia National Laboratories, Albuquerque. NM. 87185;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
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