River ecological water demand-oriented multi-water-source optimal configuration method

Abstract

The invention discloses a river ecological water demand-oriented multi-water-source optimal configuration method which comprises the following steps: carrying out water resource supply and demand balance calculation on each subarea subjected to regional division by adopting a genetic algorithm to obtain the configuration water quantity of each subarea; calculating the seepage loss amount between the river nodes; carrying out optimization adjustment calculation on the reservoir by adopting a dynamic programming algorithm to obtain a reservoir outbound runoff volume; calculating the ecological water volume and the river leakage of each control section; constructing a multi-objective optimization model, and solving the multi-objective optimization model; and generating water resource configuration schemes and reservoir scheduling schemes of different partitions. According to the method, through reasonable allocation of inter-regional water resources and optimal scheduling of water conservancy projects, water resource allocation schemes and reservoir scheduling schemes under different scenes are generated, the water seepage amount along a river water supplementing line is reduced, the ecological water demand of a downstream section is guaranteed, and therefore the river water supplementing efficiency is improved, the water amount of guided water and the water supplementing cost are reduced, and thus obvious ecological benefits and economic benefits can be generated.

Description

technical field [0001] The invention relates to the technical field of water resource allocation, in particular to a multi-water source optimal allocation method for ecological water demand of rivers. Background technique [0002] The efficient use of water resources refers to the comprehensive allocation of water resources in space and time for the quality and quantity of the water resource system itself. Due to the shortage of water resources and the uneven distribution of time and space are the basic national water conditions in my country, how to efficiently use limited surface water resources to obtain the best comprehensive benefits is the problem and difficulty that needs to be solved in the current water resource allocation. [0003] Although the research on the rational allocation of water resources in my country started late, it developed rapidly. In the 1960s, research on water resource allocation led by reservoir optimal dispatching began. In the late 1980s, th...

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Problems solved by technology

However, it is generally adjusted through the industrial structure, the time scale is long, the coordination is difficult, and it cannot effectively solve the current problem of efficient use of water resources

Especially in some northern rivers where water resources are short, the water resources in the basin are short, how to coordinate and rationally allocate local runoff, external water transfer and recycled water, the current technology is difficult to coordinate the contradiction between socio-economic water use and ecological water use in the river

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