Complex step reservoir group water storage period optimized scheduling method

Abstract

The invention discloses a complex step reservoir group water storage period optimized scheduling method which comprises the steps of S1, collecting basic information of a river basin; S2, dividing a complex step reservoir group into a plurality of sub-river-basin areas, and respectively calculating an after flood season of each sub-river-basin area; S3, estimating a probability that the flow of a branch flood prevention node exceeds a safe flow in each sub-river-basin area, and demonstrating feasibility of seasonal flood end water storage scheduling optimization by means of the probability; S4, constructing a multi-target water storage scheduling optimization model; S5, solving the multi-target water storage scheduling optimization model by means of a Pareto dynamic dimension searching method, and obtaining a certainty optimization scheduling result of a seasonal flood end water storage period; S6, extracting an optimization scheduling rule of the seasonal flood end water storage period by means of a large system polymerization/decomposition model; and S7, performing flood prevention safety examination on the optimization scheduling rule through using river basin designed flood as an input. The complex step reservoir group water storage period optimized scheduling method is a new method for complex step reservoir seasonal flood end water storage period optimized scheduling under a precondition that a flood prevention standard of the basin is not reduced.

Description

technical field [0001] The invention belongs to the technical field of reservoir dispatching, and in particular relates to a method for optimizing the dispatching period of complex cascaded reservoir groups during storage. Background technique [0002] In order to give full play to water energy resources and prevent and control flood disasters, complex cascade reservoir groups composed of main and tributary hydropower stations have been built on major rivers and major rivers. Due to the substantial increase in the ratio of the reservoir capacity of these complex cascade reservoirs to the runoff of the river basin, the influence of the reservoirs on the natural flow of the river at the end of the flood season is increasing, and because the water storage time of the hydropower stations in the same basin is roughly the same at the end of the flood season, resulting in "concentration" The problems of "water storage" and "competitive water storage" have affected the full rate of ...

AI Technical Summary

Problems solved by technology

[0005] Due to the high-dimensional and highly nonlinear characteristics of the optimization calculation of the complex cascade reservoir group, it is difficult to optimize the solution

Existing studies mostly focus on the optimization of a single reservoir or a relatively simple group of reservoirs in series, often only optimizing the outflow process of the reservoir, without considering the optimization of the storage time and storage control line of each reservoir; the comprehensive utilization benefits of reservoirs in the basin Insufficient consideration

Images