Navigable river reservoir water and sediment combined scheduling scheme generation method

Abstract

The invention provides a navigable river reservoir water and sediment combined scheduling scheme generation method which comprises the following specific steps: 1) respectively solving a first-dimensional water and sediment mathematical model and a second-dimensional water and sediment mathematical model to obtain sediment characteristic index values; 2) determining a sediment scheduling optimization target by adopting a critical navigation impeding factor, a service life factor and a long-term power generation benefit; 3) determining constraint conditions of water and sediment combined dispatching of the navigation river reservoir; and 4) obtaining a navigable river reservoir water and sediment combined scheduling scheme by adopting an optimization algorithm. According to the method, thechannel target and other interest targets of reservoir sediment scheduling can be balanced, the comprehensive benefit of the reservoir is improved on the premise that the service life of the reservoiris guaranteed, and the method can be widely applied to sediment design and multi-target optimal scheduling production practice of navigation river reservoirs or cascade reservoirs.

Description

technical field [0001] The invention relates to the technical field of reservoir sediment regulation, in particular to a method for generating a joint regulation scheme of water and sediment in navigable river reservoirs. Background technique [0002] Sedimentation is an inevitable phenomenon after the construction of a reservoir, and is closely related to the service life of the reservoir, flood control safety, power generation efficiency, and engineering safety. Traditional reservoir dispatching does not pay enough attention to the joint dispatching of runoff and sediment. Generally, the hydropower major first draws up the preliminary operation mode through runoff adjustment calculations. Professional, can only be finalized after repeated coordination. The combined operation of water and sediment is an effective measure to meet the needs of efficient and precise use of water resources and to balance the contradiction between sediment management and profit-making benefits....

AI Technical Summary

Problems solved by technology

[0004] The problems existing in the current method are: ①The goal of reservoir sediment regulation focuses on the total amount of reservoir sedimentation or the sedimentation elevation of a certain control section, and does not fully consider the change of channel conditions caused by riverbed scouring and silting of navigable rivers; The change of storage capacity and its long-term impact on the power generation benefit of the reservoir are seldom involved, and the long-term power generation benefit of the reservoir cannot be quantitatively evaluated;

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