Effective reservoir storage capacity determining method meeting requirements of human and ecology

Abstract

The invention discloses an effective reservoir storage capacity determining method meeting the requirements of human and ecology, which comprises the following steps of: firstly, determining key parameter values (a planned ecological flow rate in a flood period, a starting point of a high-pulse flow rate and a minimum ecological water requirement) of an ecological flow rate required by a river, dividing an inflow current into four intervals according to an inflow current rate of a reservoir, and taking different ecological flow rate processes when the flow rate is within different intervals so as to meet the requirements on different ecological flow rates in different flow rate periods; secondly, through analogue computation, determining a maximum available water supply supplied to the human under the condition of meeting the planned ecological flow rate process; and finally, selecting the planned water supply in the range of the available water supply, and combining the planned water supply with the planned ecological flow rate process to obtain the effective reservoir storage capacity simultaneously meeting the requirements of the planned water supply and the planned ecological flow rate through a sequent-peak algorithm meeting the requirements of human and ecological water supply. Through the effective reservoir storage capacity determining method, planned water supply can be supplied to the human and the ecological flow rate needed by a river ecosystem can be supplied according to the human water needs and ecological water needs simultaneously, and the health of the river ecosystem is effectively protected.

Description

technical field [0001] The invention belongs to the technical field of reservoir planning and design, and relates to a method for determining the capacity of a reservoir that takes human and ecological needs into consideration. Background technique [0002] Determination of reservoir capacity is a basic task in reservoir planning and design. The establishment of a reasonable reservoir capacity is conducive to improving the benefits of the reservoir (such as water supply and power generation), and at the same time it is conducive to maintaining the health of the river ecosystem. The existing methods for determining the capacity of reservoirs are mainly reverse-time calculation method and continuous peak calculation method. Among them, the reverse-time calculation method is widely used in China. When using the reverse-time calculation method, it is assumed that the reservoir is empty at the end of the year, and the reverse time sequence is calculated forward. greater than hu...

AI Technical Summary

Problems solved by technology

The above methods can easily calculate the reservoir capacity required to provide a certain planned water supply (water supply guarantee rate is 100%), but they are only oriented to the needs of the reservoir to supply water to humans, but not to the reservoir at the same time The dual needs of providing ecological flow to rivers and supplying water to humans make it difficult for the reservoir capacity to meet the needs of humans and river ecosystems at the same time

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