Research on Wind Turbine Wake Model and Overlapping in Wind Farm

The optimal layouts of wind turbine-generator(WTG) in wind farm are influenced by WTG wake when the site of wind farm is selected.At present,the research achievements in China and abroad on WTG wake and overlay model in actual wind farm mainly focus on one-dimension linear model.Aiming to improve the situation,more complete reasonable WTG wake model was constructed and its boundary in wake was nonlinear with the distance.In addition,according to actual circumstance in WTG wake,different fuller WTG overlay models were built to adapt to the situation of existing wind farm.The comparison results of engineering examples with 3-dimension numerical simulation show that the wake and overlay model in WTG proposed in this paper are more reasonable and it can effectively improve the generation benefit of wind farm.