Power distribution network planning method suitable for distributed power generation and energy storage station development

Abstract

The invention provides a power distribution network planning method suitable for distributed power generation and energy storage station development. The method comprises steps of firstly, carrying out space load prediction on a to-be-planned power distribution network region in a planning year so as to obtain future load node distribution conditions of the to-be-planned power distribution networkregion; then, according to the load node distribution conditions, establishing an upper layer optimization model and by use of the model, obtaining an optimal power distribution network framework structure in the to-be-planned power distribution network region; according to the optimal power distribution network framework structure, predicting load characteristics and distributed power generationoutput characteristics of all loads in the optimal power distribution network framework structure; and finally, establishing a lower layer optimization model for locating and sizing and profit modelsof the energy storage station, and by use of the model, calculating to obtain the energy storage station locating and sizing and a construction site for the optimal profit of an energy storage station investor. According to the invention, problems in circuit planning and energy storage station locating and sizing in the power grid planning are solved, and profit maximization of the energy storagestation is achieved.

Description

technical field [0001] The invention belongs to the technical field of intelligent distribution network planning, and in particular relates to a distribution network planning method adapted to the development of distributed power generation and energy storage stations. Background technique [0002] Distributed power generation technologies mainly include: wind power generation, photovoltaic power generation, tidal power generation, biomass power generation, etc. Compared with traditional power generation methods, distributed power generation has the advantages of high energy utilization rate and low environmental pollution. At present, domestic distributed power generation research results are concentrated on wind power generation and photovoltaic power generation. However, natural resources such as wind energy and solar energy are easily affected by the environment and climate. This makes wind power and photovoltaic power generation intermittent and volatile, seriously af...

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Problems solved by technology

[0005] This strategy only considers the revenue of distributed power generation and energy storage stations selling electricity to the grid, and energy storage can only recover costs when the operators of energy storage stations and distributed power generation are the same company. For energy storage stations, Its profit is limited, and its practical application is of little significance

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