Case study: Flicker emission and 3P power oscillations on fixed-speed wind turbines
Case study: Flicker emission and 3P power oscillations on fixed-speed wind turbines
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案例研究：定速风力涡轮机上的闪变发射和 3P 功率振荡
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
J. Barros
中科院分区：
文献类型：
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作者：
A. Lazkano;K. Redondo;P. Sáiz;J. Gutiérrez;I. Azcarate;L. Leturiondo;J. Barros
研究了塔影效应和风切变引起的功率振荡对定速风力机闪变发射的影响。对于三叶片风力涡轮机，功率的这种特征波动的频率是叶片旋转频率的3倍，并且其被称为3 P振荡。这项工作的目的是分析真实的测量数据，从实验风电场在西班牙北方，以提取的时间-频率特性相关的3 P振荡。以相同的方式，测量风力涡轮机连续运行期间产生的闪变的算法被应用于记录的数据。利用瞬时闪变感觉和短时闪变严重度，给出了3 P振荡与涡轮机闪变特性之间的关系。结果表明，监测3 P功率振荡允许获得对风力涡轮机上的闪变发射的估计。
This paper studies the influence that the power oscillations due to the tower shadow effect and the wind shear have on the flicker emission of fixed-speed wind turbines. For three-bladed wind turbines, the frequency of this characteristic fluctuation of power is 3 times the blade rotational frequency, and it is known as 3P oscillation. This work aims to analyse real measurement data from an experimental wind farm in Northern Spain in order to extract time-frequency features related to the 3P oscillation. In the same way, the algorithm that measures the generated flicker during continuous operation of wind turbines is applied to the recorded data. Using the instantaneous flicker sensation and the short-time flicker severity, the correlation between the 3P oscillation and the flicker characteristic of a wind turbine is presented. The results demonstrate that monitoring 3P power oscillation allows obtaining an estimation of the flicker emission on wind turbines.