Since the fluctuating characteristic of wind energy, with the increase of wind farms clustering size, the fluctuation of wind power gradually decreases and shows “convergence effect”. Being of guiding significance, it is important to grasp the trend of the convergence effect for transmission capacity configuration of large-scale wind power network. In this paper, different scenes of wind power output are defined, meanwhile, the convergence characteristics of wind power in each scene are analyzed. By fitting the duration curve in each scene, a scene reconstruction method based on convergence characteristics analysis is proposed. The validity of the reconstruction method is tested with measured data. Simulation case shows that the trend of convergence for wind power can be analyzed more accurately by the proposed sub-scene reconstruction method. The amount of scenes affects the fitting accuracy of duration curve, comparing to the scene divided by 5, 10 and 20, reconstruction curve divided by 10 scenes is more accurate for the description of wind convergence trend.
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