Wind, water and fire united dispatching method based on power grid dispatching side demand

The invention relates to a wind, water and fire united dispatching method based on power grid dispatching side demand. The method comprises the following steps of: 1, acquiring basic data, predicted and planned data and historical data from the database of a power grid scheduling automatic main station system; 2, constructing a wind, water and fire united dispatching model which comprises the target function and the constraint conditions of the model; 3, inputting the basic data, the predicted and planned data and the historical data which are acquired in the step 1 into the wind, water and fire united dispatching model which is constructed in the step 2, and solving by using optimized algorithms such as a simplex method, an interior point method and the like; and 4, providing a solving result which is acquired in the step 3 for a dispatcher through a human-machine contacting computer in the main station system, making a dispatching command by the dispatcher in reference to the solving result, controlling to transmit the dispatching command through the human-machine contacting computer, and executing the transmitted dispatching command by using a plant station.