Agency optimization dimension reduction method for combined scheduling of reservoir group of large-scale hydropower station

A technology for joint dispatching and hydropower stations, which can be used in data processing applications, forecasting, instruments, etc., and can solve problems such as high computational overhead.

Active Publication Date: 2018-09-21
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides an agent optimization dimensionality reduction method for joint dispatching of large-scale hydropower station and reservoir groups, the purpose of which is to se

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  • Agency optimization dimension reduction method for combined scheduling of reservoir group of large-scale hydropower station
  • Agency optimization dimension reduction method for combined scheduling of reservoir group of large-scale hydropower station
  • Agency optimization dimension reduction method for combined scheduling of reservoir group of large-scale hydropower station

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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0051] Such as figure 1 Shown, the inventive method comprises the following steps:

[0052] (1) Select the set of hydropower stations participating in the optimization, and set constraints and parameters;

[0053] The parameters include the number of sample points M and the termination precision ε.

[0054] (2) Calculate the initial flow scheduling process O of all hydropower stations accordi...

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Abstract

The invention discloses an agency optimization dimension reduction method for combined scheduling of reservoir groups of a large-scale hydropower station and belongs to the technical field of optimization scheduling of hydropower systems. The method comprises the following steps: selecting a hydropower station, setting related constraints and parameters, and calculating an initial scheduling process O and a search step length h; according h and O, generating a sample set S1 within a neighborhood domain range, calculating real target functions of samples in S1, inputting sample points in S1 andthe target functions into a neural network, and carrying out fitting so as to obtain a corresponding agency optimization model N; generating a sample set S2 of a certain scale, inputting sample points in S2 into N so as to obtain possible target functions, screening an optimal sample set S3 according to the target functions, calculating real target functions of sample points in S3, finding an improvement solution with an optimal target function in S3, if the improvement solution is prior to an initial solution, updating the initial solution, and carrying out iterative calculation, or else judging whether a step length meets precise requirements or not, if the step length meets the precise requirements, outputting the optimal solution, or else updating and replenishing the initial solution, and carrying out iteration. The method disclosed by the invention is small in parameter calculation quantity, high in search precision, short in optimization time and large in dissolution scale.

Description

technical field [0001] The invention belongs to the technical field of optimal dispatching of hydropower systems, and more specifically relates to an agent optimization dimension reduction method for joint dispatching of large-scale hydropower station reservoir groups. Background technique [0002] After more than 20 years of rapid development, especially the concentrated production of hydropower bases such as the Jinsha River, Hongshui River, and Lancang River in the past ten years, my country has formed a large-scale hydropower station and reservoir group joint dispatching pattern, and has entered a large-scale The age of hydropower. With the expansion of the scale of the system, the value of joint dispatching of large-scale hydropower station reservoirs has become increasingly prominent, which can not only increase the cascade water energy utilization efficiency of major river basins and the overall economic benefits of the hydropower system, but also promote the steady tr...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0631G06Q50/06
Inventor 冯仲恺牛文静
Owner HUAZHONG UNIV OF SCI & TECH
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