期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：4
页码：042038
DOI：10.1088/1755-1315/170/4/042038
语种：English
出版社：IOP Publishing
摘要：According to the fact that the increase of wind power penetration rate causes the influence of wind power's randomness and fluctuation on the power grid, the single short-term wind power point prediction often cannot meet the needs of power grid risk assessment and decision-making. In this paper, we first calculate the theoretical probability model of each wind power forecast box by the end function in MATLAB, and then use the exponential covariance function expression to determine the best covariance matrix corresponding to the dynamic scenarios, and determine the multivariate normal distribution model of wind farm output obedience at multiple connected moments; For each predicted moment of the wind power point prediction value of the wind belongs to the prediction box, we direct sample random vector which obey multivariate normal distribution to form the wind power dynamic scenario. After a simulation experiment on a real wind farm, the results show that the scenario set considering wind power fluctuation at different time scales can cover the measured wind power curve and the reliability of the method is proved.
