Scheduling model solving method and system for power system containing renewable energy sources

Abstract

The invention provides a renewable energy source-containing power system scheduling model solving method and system, and the method comprises the steps: firstly building a renewable energy source output scene-based joint opportunity constraint solving model, and then carrying out the preprocessing of an original scene through a bundle method, and obtaining a bundle scene set with the calculation complexity greatly reduced; and finally, according to the obtained bundle scene, establishing a solving model for converting the joint opportunity constraint into the deterministic constraint. According to the method, analysis and preprocessing are carried out by adopting a bundle thought, and a large number of similar scenes which do not influence a final solving result are integrated into a bundle, so that the complexity of the model is reduced, and the solving efficiency of the joint opportunity constraint is greatly improved while the solving accuracy is not influenced.

Description

technical field [0001] The invention belongs to the field of power system scheduling, and more particularly, relates to a method and system for solving a power system scheduling model with renewable energy. Background technique [0002] The proposal of the "dual carbon" target puts forward higher requirements for the scheduling of a large proportion of renewable energy. It is an urgent problem to deal with its randomness without losing timeliness and accuracy. At present, new energy power generation devices often have the characteristics of wide distribution and strong randomness. Therefore, multi-dimensional random variables are used to measure the new energy output of multi-regional power systems, and stochastic programming is a powerful method to solve optimization problems with random variables. , to study the stochastic programming method that can solve the optimization problem with multi-dimensional random variables, which is of great significance to the safe and stab...

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a method and system for solving a power system dispatching model containing renewable energy, aiming at solving the problems of the existing joint chance constraint method in solving nonlinear mixed integers with many dimensions The model takes a long time, and it will bring a lot of inconvenience to the dispatchers when it is applied to the actual power system dispatching

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