Method and system for power distribution of electrochemical energy storage power station

Abstract

The invention relates to a power distribution method and system for an electrochemical energy storage power station. The method includes: when the power demanded by grid dispatching is less than the sum of the rated capacities of all electrochemical energy storage power stations, according to the obtained grid dispatching instruction information and electrochemical energy storage power stations The operation statistical information of the energy storage power station determines the technical evaluation index of the electrochemical energy storage power station, and uses the comprehensive evaluation coefficient of the electrochemical energy storage power station to participate in the grid dispatch to determine the power allocated by each electrochemical energy storage station; when the power grid dispatch requires power When the amount is greater than or equal to the sum of the rated capacity of all electrochemical energy storage power stations, the power distributed by the electrochemical energy storage power station is determined by using the power grid dispatching demand power; the technical scheme of the present invention corrects the electrochemical energy storage power station by rolling update the evaluation coefficient The new power distribution algorithm improves the rationality of the power distribution of the grid dispatching electrochemical energy storage power stations, and at the same time effectively guides the operator's decision to dispatch the electrochemical energy storage power stations, and promotes the stable operation of the power grid.

Description

technical field [0001] The invention relates to the application field of electrochemical energy storage power stations, in particular to a power distribution method and system for electrochemical energy storage power stations. Background technique [0002] The development of new and efficient energy storage technology is the key technology to realize the revolution of the power grid operation mode. Its application in the power system is an inevitable trend of the future power grid development. The use of energy storage devices can realize the delayed supply of electric energy; it can effectively meet the demand side management, reduce the peak-valley difference between day and night, and strengthen the self-regulation of regional power grid peak-valley load; improve the safety, stability and power quality level of large power grids, improve power transmission and transformation capabilities, increase power supply reliability, and promote renewable energy. access to the grid ...

AI Technical Summary

Problems solved by technology

[0003] Although the technology and application of energy storage power stations are approaching maturity, and a certain amount of operating experience has been accumulated, there are still many problems in the operation and management of energy storage power stations that need to be studied in depth; the existing electrochemical energy storage power station dispatching and power distribution Technology, the analysis of the operation data of the electrochemical energy storage power stations participating in the dispatch is lacking, and a clear mechanism for the evaluation of the power stations has not yet been formed. Reasonable power distribution of energy storage power stations is not conducive to the optimal operation of power grid dispatching

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