Source-network-load integrated economic dispatching method and system considering demand response

Abstract

The invention provides a source-network-load integrated economic dispatching method and system considering demand response, and the method comprises the steps: building a source-network-load integrated economic dispatching optimization model considering the demand response and the adjustment of a power grid topological structure, enabling the optimization model to take the minimum sum of power generation cost, demand response cost and wind curtailment cost as a target, converting the mixed integer nonlinear constraint condition in the optimization model into an equivalent mixed integer linearconstraint condition, and solving the converted mixed integer linear programming model by adopting a mixed integer linear programming method to obtain a final source-network-load integrated economic dispatching scheme. The method can be used for power system economic dispatching under large-scale wind power grid connection, the power transmission side power grid structure and the power utilizationside load power utilization demand are regarded as flexible resources capable of participating in dispatching to be integrated into a power generation dispatching plan, global optimal configuration of source network load resources is achieved, the wind power waste amount can be reduced, and the economical efficiency of system operation is improved.

Description

technical field [0001] The invention relates to the technical field of power grid dispatching, in particular to a source-network-load integrated economic dispatching method and system considering demand response. Background technique [0002] Vigorously developing new energy is an inevitable choice to solve the current shortage of fossil energy and environmental pollution. Among new energy power generation technologies, wind power technology is the most mature and has the most value for large-scale development, and wind power has shown a trend of large-scale development worldwide. With the rapid development of social economy, the electricity load continues to increase, the peak load continues to climb, and the peak-to-valley difference continues to increase. In addition, affected by natural factors, wind power generation has obvious anti-peak characteristics, that is, the wind power output is low during the daytime peak load period, and the wind power output is high during ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a source-grid-load integrated economic scheduling method and system considering demand response, aiming to solve the problem that the traditional power generation scheduling model in the prior art is difficult to adapt to real-time power balance, and realize the source-network mobilization of the power system The flexible resource on the load side promotes the integration of wind power into the grid

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