Large grid active power real-time control method in restricted wind power state

The invention relates to a large grid active power real time control method in a restricted wind power state, and belongs to the technical field of operation and control of electric systems. The method comprises the following steps: firstly obtaining the current restriction quantity of a wind power field by using a benchmark dynamo method or a theoretic estimation method according to wind speed data, acquired in real time, of the wind power field and relative parameters of a generator; and then establishing a model in active real time control by the system according to the minimum wind-abandoning principle, optimizing and solving the model by using a suggested solving algorithm to obtain the current maximum absorptive wind power quantity of the system and an optimal adjusting strategy of other water-fire generator systems, and interpolating the obtained adjusting strategy by using a difference value method so as to be compatible with the existing ACE (access control entry) order format. The method provided by the invention has the following advantages: a real-time control loop using the minimum wind-abandoning loss as a target is added between a real-time plan and the ACG (application control gateway) control, so as to implement the joint optimization scheduling of the wind power and the traditional unit through the wind power field wind-abandoning quantity obtained by real-time computation, so that the wind-abandoning electric quantity caused by the prediction error of wind power generation is maximally reduced, and to the accepting capability of the grid to the wind power is furthest improved while the economical efficiency of the grid operation is ensured.