Qualification of three analytical wake models

The wake losses in wind farm are generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used. This paper qualify the performance of three analytical wake models (Jensen, Ishihara and Frandsen) in predicting wind velocity in wake region included three criteria: (i) the parsimony which characterize the inverse of model complexity, (ii) the accuracy of estimation in which wake model compared with the experimental data and (iii) Imprecision that is related to assumptions and uncertainty on the value of variables considered in models. This qualitative analysis shows the inability of wake models to predict velocity deficit in downstream area due to uncertainty of variables considered and it sensitivity to wind farm characteristic.