Grid security and stability control method considering wind power uncertainties

The invention discloses a grid security and stability control method considering wind power uncertainties, and belongs to the field of power system operation control technology. An online security and stability early warning system, a wind power forecast system and a security and stability control system are organically combined, operation of a power grid is calculated and analyzed online, key fracture surfaces and a power transmission limit are refreshed, the power generation potential of a wind power plant is sorted by combination of wind power forecast information in a certain time window, and on this basis, an optimal choice of a wind power control object is obtained based on the principle of minimum overcut. According to the invention, the loss of power generation potential of the wind power plant can be minimized, effects of wind power uncertainties on a security and stability control strategy are reduced, the refining level of wind power control is raised under the premise of ensuring secure and stable operation of a wind power base, the wind power generation amount is effectively guaranteed, and the benefits of energy conservation and emission reduction are thus enhanced.