TY - JOUR
T1 - A new formulation for rotor equivalent wind speed for wind resource assessment and wind power forecasting
AU - Choukulkar, Aditya
AU - Pichugina, Yelena
AU - Clack, Christopher T M
AU - Calhoun, Ronald
AU - Banta, Robert
AU - Brewer, Alan
AU - Hardesty, Michael
PY - 2016/8/1
Y1 - 2016/8/1
N2 - The spurt of growth in the wind energy industry has led to the development of many new technologies to study this energy resource and improve the efficiency of wind turbines. One of the key factors in wind farm characterization is the prediction of power output of the wind farm that is a strong function of the turbulence in the wind speed and direction. A new formulation for calculating the expected power from a wind turbine in the presence of wind shear, turbulence, directional shear and direction fluctuations is presented. It is observed that wind shear, directional shear and direction fluctuations reduce the power producing capability, while turbulent intensity increases it. However, there is a complicated superposition of these effects that alters the characteristics of the power estimate that indicates the need for the new formulation. Data from two field experiments is used to estimate the wind power using the new formulation, and results are compared to previous formulations. Comparison of the estimates of available power from the new formulation is not compared to actual power outputs and will be a subject of future work.
AB - The spurt of growth in the wind energy industry has led to the development of many new technologies to study this energy resource and improve the efficiency of wind turbines. One of the key factors in wind farm characterization is the prediction of power output of the wind farm that is a strong function of the turbulence in the wind speed and direction. A new formulation for calculating the expected power from a wind turbine in the presence of wind shear, turbulence, directional shear and direction fluctuations is presented. It is observed that wind shear, directional shear and direction fluctuations reduce the power producing capability, while turbulent intensity increases it. However, there is a complicated superposition of these effects that alters the characteristics of the power estimate that indicates the need for the new formulation. Data from two field experiments is used to estimate the wind power using the new formulation, and results are compared to previous formulations. Comparison of the estimates of available power from the new formulation is not compared to actual power outputs and will be a subject of future work.
KW - Doppler lidar
KW - equivalent wind speed
KW - wind energy
KW - wind power calculation
KW - wind power forecasting
KW - wind resource assessment
UR - http://www.scopus.com/inward/record.url?scp=84942743877&partnerID=8YFLogxK
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U2 - 10.1002/we.1929
DO - 10.1002/we.1929
M3 - Article
AN - SCOPUS:84942743877
VL - 19
SP - 1439
EP - 1452
JO - Wind Energy
JF - Wind Energy
SN - 1095-4244
IS - 8
ER -