Reservoir operation-for-beneficial-use chart optimization method considering ecological protection needs

Abstract

The invention discloses a reservoir operation-for-beneficial-use chart optimization method considering ecological protection needs. The method includes the following steps that: the basic informationdata of a hydropower station reservoir are obtained; representative fishes are selected, a physical habitat simulation model (PHABSIM) is adopted to establish a relationship between discharged flows and ecological protection levels, an ecological flow interval corresponding to an ecological protection objective is determined; a reservoir operation chart optimization model is established on the basis of power generation benefits and ecological benefits; with reservoir runoff adopted as the input of the reservoir operation chart optimization model, a DPSA (dynamic programming with successive approximation) method is used to solve the model; and ecological limit lines are drawn, an ecological limit line and reservoir operation curve-combined reservoir operation rule is established, and a multi-objective optimization operation chart is compiled. According to the reservoir operation-for-beneficial-use chart optimization method considering ecological protection demands of the invention, different ecological objectives are optimized through adopting different flow intervals according to the different growth periods of fishes, which is more in line with an actual situation; and the ecological limit lines are additionally adopted, and therefore, the depth of ecological flow destruction can be reduced, and the protection of downstream ecology can be enhanced.

Description

technical field [0001] The invention relates to a method for optimizing a reservoir scheduling diagram, in particular to a method for optimizing a reservoir scheduling diagram for the benefit of ecological protection. Background technique [0002] Reservoir scheduling diagrams are widely used in reservoir scheduling because they are easy to use and operate. Making a reasonable reservoir scheduling diagram can improve the social and economic benefits of reservoirs and effectively protect river ecosystems. [0003] At present, the research on dispatching map optimization mainly considers the economic benefits such as power generation and water supply, and less consideration is given to the protection of the downstream ecological environment. [0004] Existing reservoir scheduling diagrams that consider ecology usually select a fixed flow rate as the ecological flow rate for optimization, which cannot reflect changes in ecological flow demand within a year and cannot effectivel...

AI Technical Summary

Problems solved by technology

[0004] Existing reservoir scheduling diagrams that consider ecology usually select a fixed flow as the ecological flow for optimization of the scheduling diagram, which cannot reflect changes in ecological flow requirements during the year and cannot effectively protect the downstream ecological environment

That is to say, it is difficult for existing methods to maximize economic benefits while effectively improving the protection of river ecosystems.

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