Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Analysis of wind shear and turbulence intensity influence on wind power performance using SCADA and LiDAR data
Submission Author:
Leandro Jose Lemes Stival , PR
Co-Authors:
Fernando Oliveira de Andrade, Alexandre Kolodynskie Guetter, Leandro Jose Lemes Stival
Presenter: Leandro Jose Lemes Stival
doi://10.26678/ABCM.COBEM2017.COB17-1967
Abstract
This study aimed to investigate the influence of two flow parameters, named wind shear coefficient and wind turbulence intensity, on the efficiency of wind energy generation in two North American Wind Farms. The data used in the analysis were obtained from SCADA, and collected by LiDAR measurements. Statistical analysis ware performed using the two selected flow parameters for the wind turbine performance, where power generation was plotted against the freestream wind velocity in x-y graphical format, as function of wind shear coefficient and wind turbulence intensity. Results showed that the wind shear coefficients in the order of 0.1 to 0.4 are sensible to the performance curve in the wind speed range of 10 to 14 m/s. In addition, the wind turbulence intensity higher than 0.1 tends to modify the power performance curve, resulting in a power overestimation of approximately 20% for wind speeds higher than 8 m/s.
Keywords
Wind power, LiDAR, wind shear, Turbulence intensity
