An optimal scheduling method for cross-basin hydropower station group peak regulation considering the risk of water abandonment

Abstract

The invention discloses an optimal dispatching method for peak regulation of a cross-basin hydropower station group considering the risk of water abandonment, comprising the following steps: S1, constructing an optimal dispatching model for peak regulation of a hydropower station group; S2, calculating the water abandonment risk of each cascade hydropower station; S3, Based on the water abandonment risk of each power station, coordinate and distribute the power generation of each power station; S4. Based on the power distribution of each power station, calculate the optimal solution of the peak-shaving optimization dispatching model of the hydropower station group to obtain the output process line of each power station, and complete the hydropower station group. Joint peak shaving scheduling. Quantitatively analyze the water abandonment risk of hydropower stations through the runoff frequency, and coordinate the distribution of peak-shaving power of hydropower station groups in different river basins based on the water abandonment risk value, which can fully consider the water abandonment risk of each power station, and give full play to the runoff compensation and power compensation benefits of hydropower station groups in different river basins , thus greatly reducing the risk of hydropower abandonment of water during peak regulation of the grid hydropower system, and reducing the amount of hydropower abandonment of water.

Description

technical field [0001] The invention belongs to the field of hydropower dispatching operation, and more specifically relates to an optimal dispatching method for peak regulation of cross-basin hydropower station groups considering the risk of water abandonment. Background technique [0002] With the vigorous development of the country's hydropower industry, groups of inter-basin hydropower stations with huge installed capacity have emerged in many areas. Hydropower is a high-quality peak-shaving power source. It is of great value to the safe and economic operation of the power grid to optimize the peak-shaving scheduling of the cross-basin hydropower station group so that it can give full play to the peak-shaving benefits. Affected by factors such as the uncertainty of reservoir inflow and runoff, the over-concentration of hydropower development and the relatively lagging construction of power grid supporting transmission channels, and the intermittent new energy grid connec...

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Problems solved by technology

[0005] In view of the defects of the prior art, the purpose of the present invention is to provide an optimal scheduling method for peak regulation of cross-basin hydropower station groups considering the risk of water abandonment, aiming to solve the problem that the existing optimal scheduling method for peak regulation of cross-basin hydropower station groups does not consider the risk of water abandonment question

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