Mitraszewski, Karol4; Hansen, Kurt Schaldemose1; Nygaard, Nicolai4; Réthoré, Pierre-Elouan1
1 Department of Wind Energy, Technical University of Denmark2 Fluid Mechanics, Department of Wind Energy, Technical University of Denmark3 Aeroelastic Design, Department of Wind Energy, Technical University of Denmark4 DONG Energy A/S
We present an empirical study of wind farm blockage effects based on Horns Rev 1 SCADA data. The mean inflow non-uniformities in wind speed are analyzed by calculating the mean power outputs of turbines located along the outer edges of the farm for different wind directions, wind speeds and stability conditions. This forms a basis for understanding of the blockage effects and their influence on wind farm production.