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Cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge

A technology of historical trajectory and cascade reservoirs, applied in climate change adaptation, complex mathematical operations, forecasting, etc., can solve problems such as local convergence of DDDP

Active Publication Date: 2021-05-07
CHANGJIANG SURVEY PLANNING DESIGN & RES
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Problems solved by technology

[0008] The purpose of the present invention is to address the deficiencies of the above-mentioned technologies, to provide a cascade reservoir group ecological scheduling optimization method that considers historical trajectory knowledge, and to solve the local convergence problem that DDDP exists when solving complex hydropower system optimal scheduling solutions

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  • Cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge
  • Cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge
  • Cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, as shown in the figure, a cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge includes the following steps:

[0032] 1) Determine the initial calculation conditions, including the optimization objective function, constraint conditions and decision variables for the ecological regulation of the cascade reservoir group,

[0033] Among them, the ecological operation model of cascade reservoir group can be described as: the initial water level, final water level, inflow runoff process and interval runoff process of each reservoir are known, and the corresponding water level and flow of each reservoir are satisfied. The minimum sum of ecological overflow and ecological water shortage of the cascade reservoir group is the optimization objective, and...

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Abstract

The invention relates to the technical field of cascade reservoir group ecological scheduling, and discloses a cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge. After an initial scheduling process is given, a discrete differential dynamic programming (DDDP) method is taken as a basic framework, and before each iteration, knowledge information carried by a historical trajectory process is mined to perform variable-scale gravity center reverse learning on the current trajectory to obtain an optimized trajectory with a better result; then discrete iteration solution is carried out on the basis of the optimized trajectory; and finally, the global optimal solution is gradually approximated through iterative optimization. According to the cascade reservoir group ecological scheduling optimization method considering historical trajectory knowledge, historical trajectory knowledge information is fully utilized, diversified search information is mined and generated through variable-scale gravity center reverse learning, the global search ability is improved, and the local convergence problem of a traditional algorithm is effectively solved.

Description

technical field [0001] The invention relates to the technical field of ecological dispatching of cascade reservoir groups, in particular to an optimization method for ecological dispatching of cascade reservoir groups considering historical trajectory knowledge. Background technique [0002] With the rapid development of my country's water conservancy, large-scale cascade reservoirs in various river basins have been continuously built and operated, which have exerted huge social and economic benefits such as flood control, power generation, and shipping, but have also drastically changed the original natural runoff hydrological situation. The structure and engineering of the ecosystem also has a number of adverse impacts, including shrinking of river channels, sedimentation, and loss of biodiversity. In order to alleviate the negative impact of reservoir operation on the river ecological environment, the ecological regulation of reservoir group is a typical non-engineering me...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06F17/17G06F16/2458G06Q50/06
CPCG06Q10/04G06Q10/0631G06F17/17G06F16/2465G06Q50/06Y02A10/40
Inventor 邹强鲁军王学敏洪兴骏李肖男严凌志
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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