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Performance Analysis of Different Positions of Leading Edge Tubercles on a Wind Turbine Blade

机译:风力涡轮机叶片前缘结节不同位置的性能分析

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摘要

Wind energy is considered one of the main sources for the future energy production. In spite of that, new technologies are required to solve some issues related to the variable nature of the wind, which leads to a variable wind turbine power output. Sinusoidal leading edge modifications (tubercles) of the blade seem to be a potential solution since they improve the aerodynamic performance postponing the blade stall at high wind speeds. The present study wants to analyze the performance of the NREL Phase VI wind turbine blade when different tubercle positions along the blade span are considered. Each tubercle configuration is simulated by a three-dimensional Computational Fluid Dynamic analysis, and the resulting shaft torque and Annual Energy Production (AEP) are compared with the regular NREL blade. Results show that only two configurations exhibit an AEP enhancement; in particular, placing tubercles from 95% of the blade span to the tip shows a potential 10% AEP improvement when a mean wind speed of 10 m/s is considered.
机译:风能被认为是未来能源生产的主要来源之一。尽管如此,仍需要新技术来解决与风的可变性有关的一些问题,这导致可变的风力涡轮机功率输出。叶片的正弦前​​缘修改(结节)似乎是一种潜在的解决方案,因为它们改善了空气动力学性能,从而推迟了在高风速下的叶片失速。当考虑沿叶片跨度的不同结节位置时,本研究希望分析NREL VI风力涡轮机叶片的性能。通过三维计算流体动力学分析来模拟每种结节构型,并将所产生的轴扭矩和年发电量(AEP)与常规NREL叶片进行比较。结果表明,只有两种配置具有AEP增强功能;特别是,当考虑平均风速10 m / s时,从95%的叶片跨度到尖端放置结节可能会提高10%的AEP。

著录项

  • 来源
    《Wind energy symposium 2018》|2018年|470-480|共11页
  • 会议地点 Kissimmee(US)
  • 作者

    Giada Abate; Dimitri Mavris;

  • 作者单位

    Georgia Institute of Technology. Atlanta. Georgia. 30318, US;

    Georgia Institute of Technology. Atlanta. Georgia. 30318, US;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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