Cross-basin hydropower station group peak regulation optimal scheduling method considering water abandoning risk

Abstract

The invention discloses a cross-basin hydropower station group peak regulation optimization scheduling method considering a water abandoning risk. The method comprises the following steps of S1, constructing a hydropower station group peak regulation optimization scheduling model; S2, calculating the water abandoning risk of each cascade hydropower station; S3, coordinately distributing the generating capacity of each power station based on the water abandoning risk of each power station; and S4, calculating an optimal solution of the hydropower station group peak regulation optimization scheduling model based on the electric quantity distribution of each power station to obtain an output process line of each power station, and completing hydropower station group combined peak regulation scheduling. The hydropower station water abandoning risk is quantitatively analyzed through the runoff frequency. The peak shaving electric quantity of the hydropower station groups in different drainage basins is coordinated and distributed based on the water abandoning risk value, so that the water abandoning risk of each hydropower station can be fully considered, the runoff compensation and power compensation benefits of the hydropower station groups in different drainage basins are exerted, the hydropower water abandoning risk is greatly reduced during peak shaving of the power grid hydropower system, and the hydropower water abandoning electric quantity is reduced.

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 o

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