Reservoir group flood control storage capacity distribution method based on maximum system nonlinear safety degree

Abstract

The invention discloses a reservoir group flood control storage capacity distribution method based on the maximum system nonlinear safety degree. The method comprises the following steps: according to the nonlinear safety degree of a single reservoir and the nonlinear safety degree of a reservoir group flood control system, with the over standard flood volume of a reservoir group joint flood control station to be minimum and the nonlinear safety degree of the reservoir group flood control system to be maximum as targets, a reservoir group flood control storage capacity optimal distribution model based on the maximum system nonlinear safety degree is built; a linear programming method is adopted to solve the built reservoir group flood control storage capacity optimal distribution model; and according to the solved calculation result, an optical distribution scheme for the flood control storage capacity for each reservoir in the reservoir group during each scheduling time period is obtained. According to the reservoir group flood control storage capacity distribution method provided by the invention, through optimizing the reservoir group flood control storage capacity distribution, while the overall flood control benefits of the reservoir group are improved, the flood control risks of the reservoir can be reduced effectively.

Description

technical field [0001] The invention belongs to the technical field of combined flood control dispatching of reservoir groups, and more specifically relates to a flood control storage capacity allocation method of reservoir groups based on the maximum nonlinear safety degree of the system. Background technique [0002] In the event of continuous heavy rain, the rainfall will form river runoff through the generation and confluence of the river. When the runoff exceeds the safe discharge capacity of the river, the embankment may burst, causing the flood in the river to leak out and causing flood disasters. With the country's investment in water conservancy construction, the number of reservoirs built in various river basins has increased sharply, forming mixed reservoir groups and multi-cascade reservoir groups. Therefore, it is a major practical demand of the country to use the joint flood control dispatching technology of reservoir groups to fully exert the overall flood con...

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Problems solved by technology

[0005] 2. The method of maximizing the linear safety degree of the system assumes that there is a linear relationship between the safety degree of a single reservoir and its maximum use ratio of flood control storage capacity, that is, using the same flood control storage capacity of a single reservoir in the process of using its flood control storage capacity will have the same impact on its flood control safety Yes, this does not match the actual situation

[0006] 3. The method of maximum linear safety degree of the system assumes that the safety degree of the flood control system of the reservoir group is the average value of the safety degree of each reservoir in the reservoir group, which makes the reservoirs with the same safety degree use more flood control storage capacity, which is not conducive to the larger flood control storage capacity. Flood Control Safety of Large Reservoirs

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