A new formulation for rotor equivalent wind speed for wind resource assessment and wind power forecasting
A new formulation for rotor equivalent wind speed for wind resource assessment and wind power forecasting
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DOI：
10.1002/we.1929
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发表时间：
2016-08
期刊：
影响因子：
4.1
通讯作者：
A. Choukulkar;Y. Pichugina;C. Clack;R. Calhoun;R. Banta;A. Brewer;M. Hardesty
中科院分区：
文献类型：
--
作者：
A. Choukulkar;Y. Pichugina;C. Clack;R. Calhoun;R. Banta;A. Brewer;M. Hardesty
风能行业的井喷式增长导致了许多新技术的发展，以研究这种能源并提高风力涡轮机的效率。风电场表征中的关键因素之一是预测风电场的功率输出，其是风速和风向中的湍流的强函数。本文提出了一种新的计算风切变、湍流、方向切变和方向波动情况下风力涡轮机期望功率的公式。据观察，风切变，方向切变和方向波动降低功率产生能力，而湍流强度增加it.However，有一个复杂的叠加这些影响，改变了功率估计的特性，表明需要新的公式。从两个现场实验的数据被用来估计使用新的配方的风力发电，并与以前的配方的结果进行比较。新公式中可用功率估计值的比较没有与实际功率输出进行比较，这将是今后工作的一个主题。© 2015作者。风能由John Wiley & Sons，Ltd.出版
The spurt of growth in the wind energy industry has led to the development of many new technologies to study this energy resource and improve the efficiency of wind turbines. One of the key factors in wind farm characterization is the prediction of power output of the wind farm that is a strong function of the turbulence in the wind speed and direction. A new formulation for calculating the expected power from a wind turbine in the presence of wind shear, turbulence, directional shear and direction fluctuations is presented. It is observed that wind shear, directional shear and direction fluctuations reduce the power producing capability, while turbulent intensity increases it. However, there is a complicated superposition of these effects that alters the characteristics of the power estimate that indicates the need for the new formulation. Data from two field experiments is used to estimate the wind power using the new formulation, and results are compared to previous formulations. Comparison of the estimates of available power from the new formulation is not compared to actual power outputs and will be a subject of future work. © 2015 The Authors. Wind Energy published by John Wiley & Sons, Ltd.