Through analysing characteristics of large-scale wind farms group clustering effect and finding out the regularity, the power grid can accept wind power more reasonably and the utilization efficiency of new energy can be improved. Based on the measured data of a certain group of provincial power grid wind farms and analysis time series, spectrum analysis, probability and statistics, the change of the wind and the wind power of the wind farm group of characteristics is analysed, accessing convergence effect of wind farm output characteristics.
