Scheduling method for wind power and large-scale electric vehicle coordination optimization

Abstract

The invention relates to a scheduling method for wind power and large-scale electric vehicle coordination optimization. The scheduling method comprises the steps of 1) building a wind power and large-scale electric vehicle coordination optimization scheduling model; 2) building an optimization model for enabling the operation cost of a traditional generator to be minimum in an upper-layer optimization model; 3) decomposing a robust unit combination main problem considering wind power uncertainty into a robust unit combination main problem and a wind electricity uncertainty verification sub-problem; 4) in a lower-layer optimization model, enabling a scheduling plan of an electric vehicle aggregator at each moment to be equal to a charging and discharging plan of total electric vehicles administrated by the electric vehicle aggregator, and giving charging and discharging constraints of the electric vehicles; 5) enabling an electric vehicle constraint sub-problem to receive an optimal solution transmitted by the robust unit combination main problem considering the wind power uncertainty; and 6) performing solving to obtain a scheduling scheme of wind power, the electric vehicles and thermal power. Compared with the prior art, the method has the advantages of being rapid and reliable, high in applicability, good in optimization effect and the like.

Description

technical field [0001] The invention relates to the technical field of dispatching of wind farms and electric vehicles, in particular to a dispatching method for coordinated optimization of wind power and large-scale electric vehicles. Background technique [0002] Wind power is the fastest growing and most promising renewable energy, which has played an important role in alleviating the energy crisis, saving energy and reducing emissions. However, due to its randomness and intermittent nature, the grid-connection of large-scale wind power has brought many challenges to the operation of the power system, seriously affecting the safe and stable operation of the power system. In recent years, with the popularization of electric vehicles, new ideas have been provided to deal with the impact of large-scale wind power grid integration. In-depth research on the coordinated dispatch of wind power and electric vehicles is urgently needed. [0003] At present, in the research on how...

AI Technical Summary

Problems solved by technology

In the literature, the convex analysis method is used to track the given load curve to solve the charging and discharging optimization of electric vehicles, but when this method is used for large-scale electric vehicles, its applicability will be affected

It can be seen that these methods only consider the coordination among electric vehicles, ignoring the coordination between electric vehicles and thermal power units and wind power; in addition, it is not applicable when there are a large number of electric vehicles

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