Method for analyzing influence of output power fluctuation of wind farm on power grid

The invention relates to a method for analyzing the influence of output power fluctuation of a wind farm on a power grid, which comprises the following steps of: calculating forecast ACE (Area Control Error fluctuation) of a next moment by using the wind power forecasting data of a single wind farm in an area power grid, the actual wind power data of the area power grid and the ACE fluctuation data of the area power grid, wherein the ACE is an error value formed according to the current load, power generation, power collection, frequency and other factors of the power grid, and reflects the power balance condition of an area;, comparing the ACE fluctuation with an ACE threshold, and giving out early warning. The method lays the foundation for large-scale wind power grid-connected access and scheduling, is favorable for improving the utilization efficiency of green energy and has obvious economic and social benefits.