Method for calculating actual wind speed of wind power near-ground grid

The invention relates to a method for calculating the actual wind speed of a wind power near-ground grid. The method specifically comprises the following steps: S1, collecting wind speed observation data of 10m, 30m, 50m and 70m height layers of each anemometer tower in a measured wind power plant, position information of each anemometer tower, wind speed grid real-time data of a 10m height layer, position information of the measured wind power plant, and horizontal spatial resolution and time resolution of the measured wind power plant; s2, performing quality control on the collected wind speed data of each anemometer tower of the tested wind power plant; and S3, grid wind speed calculation is carried out. The method is wider in adaptability and smaller in wind speed deviation, can be better applied to the fields of wind power resource evaluation, wind power production, wind field operation and maintenance, power transmission guarantee and the like, and can provide wind speed live support for power generatio