前后风力机尾流干扰实验分析及混合尾流模型验证

马高生; 常吉祥; 李德顺; 霍春玉; 刘念爽; 李仁年

doi:10.19912/j.0254-0096.tynxb.2022-0118

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (6) : 390-397. DOI: 10.19912/j.0254-0096.tynxb.2022-0118

前后风力机尾流干扰实验分析及混合尾流模型验证

马高生, 常吉祥, 李德顺, 霍春玉, 刘念爽, 李仁年

作者信息 +

EXPERIMENT ANALYSIS OF FRONT AND REAR WIND TURBINE WAKE INTERFERENCE AND VERIFICATION OF MIXED WAKE MODEL

Ma Gaosheng, Chang Jixiang, Li Deshun, Huo Chunyu, Liu Nianshuang, Li Rennian

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摘要

为研究两台水平轴风力机在不同排布下尾流的相互影响,开展两台风力机串联和错列工况下的尾流速度风洞测量实验。实验结果表明：对相同来流情况,风力机不同排布下混合尾流的尾流膨胀速率相同;串联风力机的轴向间距小于6倍风轮直径时,其混合尾流比单台风力机尾流恢复快。另外,对已有尾流模型的叠加方法（速度亏损平方和法）进行了验证。结果显示基于Park-polynomial模型和Park-Gauss模型得到的叠加尾流在距下游风力机3.5倍风轮直径的截面与测量值吻合良好。之后的截面高估了尾流的速度亏损。该研究为发展更准确的尾迹模型提供了风洞测量数据,对风电场内风力机排布优化有一定的工程意义。

Abstract

To study the mutual influence of the wake flow of two horizontal axis wind turbines in different arrangements, wind tunnel measurement experiments on the wake flow velocity of two wind turbines in series and staggered working conditions were carried out. The experimental results show that the wake expansion rate of the mixed wake is the same for the same incoming flow; the mixed wake recovers faster than the single wind turbine when the axial spacing of the tandem wind turbine is less than 6 times the wind turbine diameter. In addition, we validated the superposition method (velocity deficit sum of squares method) for the existing wake models. The results show that the superimposed wake flow based on the Park-polynomial and Park-Gauss models agrees well with the measured values at a cross section of 3.5 times of wind turbine diameters from the downstream wind turbine. The subsequent cross sections overestimate the velocity deficit of the wake. This study provides wind tunnel measurements for the development of a more accurate wake model and has engineering implications for the optimization of wind turbine displacements within wind farms.

导出引用

马高生, 常吉祥, 李德顺, 霍春玉, 刘念爽, 李仁年. 前后风力机尾流干扰实验分析及混合尾流模型验证[J]. 太阳能学报. 2023, 44(6): 390-397 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0118

Ma Gaosheng, Chang Jixiang, Li Deshun, Huo Chunyu, Liu Nianshuang, Li Rennian. EXPERIMENT ANALYSIS OF FRONT AND REAR WIND TURBINE WAKE INTERFERENCE AND VERIFICATION OF MIXED WAKE MODEL[J]. Acta Energiae Solaris Sinica. 2023, 44(6): 390-397 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0118

中图分类号： TK81

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