Turbulence upstream of wind turbines: A large-eddy simulation approach to investigate the use of wind lidars

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• 作者：G. Cortina ; ^{gerard.cortina@utah.edu} ; ; M. Calaf
• 关键词：Large eddy simulation ; Lidar ; Wind energy ; Wind farm ; Wind turbines ; Turbulent kinetic energy
• 刊名：Renewable Energy
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：105
• 期：Complete
• 页码：354-365
• 全文大小：2365 K
• 卷排序：105

文摘

Nacelle mounted wind lidars have been shown to be effective to detect turbulent events. The upstream turbulence correlations have been shown to be ABL-stratification dependent. Wind farm configuration modifies the background ABL flow and therefore the turbulent correlations. The upstream distance can be determined as a function of the wind velocity and turbine readjustment time. A truncated normal PDF model provides guidance on deciding the right upstream scanning distance.