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Uncertainty Quantification of Wind Turbine Blade Load Measurement, Estimation, and Transformation

机译:风力涡轮机叶片载荷测量,估算和转换的不确定性量化

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摘要

This paper describes the process of transforming measured blade loads, with force estimation, to wind turbine quantities of interest. Uncertainty quantification on the blade load measurement and force estimation is derived and used to estimate uncertainty on aerodynamic torque and rotor thrust for sample cases. A methodology is defined for calculating mean values and quantifying the uncertainty in these important quantities of interest for wind turbines when your available data includes only blade root moment measurements. This paper is not intended to provide precise values for these uncertainties at the current stage, however, sample measurement uncertainties are defined and used along with representative mean values to identify the sensitivity of uncertainty in torque and thrust to the constituent variables and associated uncertainties. The largest contributors of the uncertainty when using blade strain gage measurements to estimate rotor loads is identified for the sample cases revealing the components that have the largest effect on the resulting quantity of interest's uncertainty, and those which have negligible effect on the uncertainty.
机译:本文介绍了通过力估计将测得的叶片负载转换为感兴趣的风力涡轮机数量的过程。推导了叶片载荷测量和力估计的不确定性量化,并用于估计示例情况下气动扭矩和转子推力的不确定性。当您的可用数据仅包括叶片根矩测量值时,将定义一种方法来计算平均值并量化这些重要的风力涡轮机重要数量的不确定性。本文无意在当前阶段为这些不确定性提供精确的值,但是,定义了样本测量不确定性,并将其与代表平均值一起使用,以识别扭矩和推力不确定性对组成变量和相关不确定性的敏感性。在样本情况下,使用叶片应变计测量来估计转子负载时,不确定性的最大贡献者被发现,揭示出对最终结果的不确定性影响最大的组件,以及对不确定性影响可忽略的组件。

著录项

  • 来源
    《Wind energy symposium 2018》|2018年|550-562|共13页
  • 会议地点 Kissimmee(US)
  • 作者单位

    Sandia National Laboratories Albuquerque, NM, 87185, USA;

    Sandia National Laboratories Albuquerque, NM, 87185, USA;

    Sandia National Laboratories Albuquerque, NM, 87185, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
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