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Impact of ambient turbulence on performance of a small wind turbine

机译:环境湍流对小型风力发电机性能的影响

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摘要

High resolution measurements of wind speed and energy generation from an instrumented Bergey XL1 small wind turbine were used to investigate the effect of ambient turbulence levels on wind turbine energy production. It was found that ambient turbulent intensity impacts energy production, but that the impact is different at different wind speeds. At low wind speeds, increased turbulence appeared to increase energy production from the turbine. However, at wind speeds near the turbine furling speed, elevated turbulence resulted in decreased energy production, likely to turbulent gusts initiating furling events. Investigation of measurements recorded at 1 Hz showed a time lag of one to 2 s between a change in wind speed and the resulting change in energy production. Transient changes in wind speed of only 1 s duration did not impact energy production, however, longer duration changes in wind speed were tracked reasonably well by energy production.
机译:使用仪器化的Bergey XL1小型风力涡轮机进行风速和能量生成的高分辨率测量,以研究环境湍流水平对风力涡轮机能源生产的影响。已经发现,周围的湍流强度影响能量产生,但是在不同的风速下影响是不同的。在低风速下,湍流的增加似乎增加了涡轮机的发电量。然而,在接近涡轮收割速度的风速下,湍流升高导致能量产生减少,可能导致湍流阵风引发收割事件。对以1 Hz记录的测量结果的研究表明,风速变化与产生的能量生产变化之间存在1到2 s的时间间隔。持续时间仅为1 s的风速的瞬态变化不会影响能源生产,但是,通过能源生产可以合理地很好地跟踪较长的风速变化。

著录项

  • 来源
    《Renewable energy》 |2014年第1期|69-73|共5页
  • 作者

    William David Lubitz;

  • 作者单位

    Assistant Professor, School of Engineering, University of Guelph, 50 Stone Rd. E., Guelph, Ontario, Canada N1G 2W10;

  • 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

    Small wind turbine; Turbulence; Gusts; Wind energy;

    机译:小型风力发电机;湍流阵风风能;

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