The method of dealing with the problem of water flow delay in the joint dispatch of cascade hubs

A cascade hub and water flow delay technology, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the continuity of blocking river flow conditions, the unified solution of the hydraulic model of the entire river section, and the joint optimization of cascade navigation hubs Scheduling problems and other problems, to achieve the effect of solving technical problems of water flow delay

Active Publication Date: 2016-05-11
NANJING HYDRAULIC RES INST
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Problems solved by technology

However, the construction of the cascade navigation hub blocks the continuity of the river flow conditions and destroys the natural hydraulic characteristics of the section, so it is impossible to directly solve the unified solution of the hydraulic model of the entire river section. Hub Joint Optimal Scheduling Brings New Difficulties

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  • The method of dealing with the problem of water flow delay in the joint dispatch of cascade hubs
  • The method of dealing with the problem of water flow delay in the joint dispatch of cascade hubs

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Embodiment Construction

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific implementations of the present invention are now described.

[0029] Specifically, in order to solve the problem mentioned in the background technology that there is no good method for determining the runoff process of each hub in the same period of time in the decision-making process of most cascade hub joint power generation or joint flood control dispatching, the present invention provides a The water flow delay processing method in the cascade hub joint dispatching is used to calculate the runoff process of each hub in the same period of time for a river with multiple hubs, so as to provide accurate data support for the cascade hub joint dispatching water balance calculation, as follows The cascade system composed of 4 hubs is taken as an example to illustrate the method for dealing with time lag of water flow in joint dispatching of cascade hub...

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Abstract

The invention relates to a method for processing water flow 'time lag' in cascade-hub combined dispatching. The method includes by dividing cross sections of a whole river channel, setting a virtual cross section at each hub, and respectively adopting a solving Saint-Venant equation and a hub water amount balance computation method on a natural cross section and the virtual cross section of each hub to determine water levels and flow values at time period ends of all computation cross sections, including each virtual cross section of each hub, of the whole river channel. By the method, the water levels and flow values at the time period ends of all computation cross sections, including each virtual cross section of each hub, of the whole river channel can be determined. Synchronous computation of hydraulic elements of the whole river channel is realized, and the technical problem of water flow 'time lag' in cascade-hub combined dispatching is solved.

Description

technical field [0001] The invention relates to the field of cascade junction joint dispatching, in particular to a method for processing the problem of water flow delay in the cascade junction joint dispatching process. Background technique [0002] With the successive completion and operation of a large number of cascade navigation and power hubs such as the Three Gorges Cascade, the Upper Yellow River Cascade, and the Jinsha River Cascade in China, formulating a joint dispatching plan for the cascade hubs and carrying out dispatching according to the plan has become an The key to comprehensive utilization of benefits. At present, the goals of joint dispatching of hub groups that are concerned at home and abroad are mainly power generation efficiency and flood control safety. With the increasing concept of sustainable development of water resources, the multi-objective scheduling problem of comprehensive consideration of water resources, ecology and environment has become...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 胡亚安张铭韩昌海李君郭永彬李艳富郭超
Owner NANJING HYDRAULIC RES INST
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