Regional complex two-stage economic dispatching method considering water-light-storage complementation

Abstract

The invention discloses a regional complex two-stage economic dispatching method considering water-light-storage complementation. The method comprises the following steps: combining a plurality of regions which comprises a solar power station, a pumped storage power station, an interruptible load and a transferable load into a regional complex; constructing an internal optimization function of theregional complex, and obtaining a decision result of the regional complex through the optimization function; optimizing the decision model through the scheduling center according to the decision result of the regional complex to obtain a scheduling decision result of the scheduling center; according to the decision result of the regional complex and the scheduling decision result of the scheduling center, determining the calling of controllable elements in the regional complex and the transaction condition between the regional complex and the outside; and determining a scheduling strategy ofthe scheduling center according to the calling of the controllable elements in the regional combination body and the transaction condition of the regional combination body and the outside to obtain ascheduling plan. According to the invention, the cost of the regional combination body is reduced, the absorption capability of the water-light storage system for new energy is improved, and the source electricity quality is improved at the same time.

Description

technical field [0001] The invention relates to the field of energy technology, in particular to a two-stage economic scheduling method for regional associations considering the complementarity of water, photovoltaics and storage. Background technique [0002] The promulgation of Document No. 9 of Xindiangai has led to the emergence of a large number of social capital that directly participates in the electricity sales business through qualified distributed power sources. With the implementation of the global sustainable development strategy, photovoltaic power generation and cascade hydropower have received strong support from the state and the government, and their proportion in the active distribution network has increased year by year. However, the fluctuation and randomness of photovoltaic power generation and cascade water supply It also causes a large amount of light and water abandonment. The high proportion of clean energy connected to the grid has brought great ch...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the lack of consideration of the complex connection between hydraulic power and electric power of cascaded hydropower groups in the prior art, and to provide a two-stage economic dispatch method for regional associations that considers the complementarity of water, solar and storage, so as to significantly reduce the area The cost of the consortium, the purpose of improving the quality of source power while improving the ability of the hydro-photovoltaic-storage system to absorb new energy

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