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

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of power grid dispatching operation, in particular to a combined wind, water and fire scheduling method based on the demand of the power grid dispatching side. Background technique [0002] The traditional power system scheduling method is usually the joint scheduling of water and thermal power. With the rapid development of wind power in my country, large-scale wind power grid-connected operation, the traditional water and thermal power scheduling methods can no longer effectively solve the randomness and volatility of wind power. , The impact caused by economic operation, relying on the installation of adjustment devices, energy storage equipment and other means, it is difficult to locally adjust the wind power to meet the requirements of real-time operation of the power system. A more effective method is to call the adjustable resources of hydropower units and thermal power units within the entire network,...

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Problems solved by technology

[0004] The constraints of traditional power system scheduling methods usually only consider the balance of system power, positive and standby capacity constraints, unit operation constraints, transmission line capacity constraints, etc., but do not fully consider the characteristics of my country's cascade hydropower stations, and large-scale wind power. The impact on the stability of the power flow section, the transmission of contracted electricity between regions that the dispatching organization is concerned about, etc.

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