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Ecological regulation and control method and system for cascade hydropower station group

A technology for cascade hydropower station groups and populations, which is applied in the fields of artificial life, biological models, data processing applications, etc., can solve the problems of ecological scheduling, insufficient development capacity, premature convergence and other problems of unseen cascade hydropower systems, and increase the diversity of populations. , the effect of fast convergence and strong robustness

Active Publication Date: 2019-12-20
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, there are still no relevant reports on how GSA solves the ecological dispatch of cascaded hydropower systems
For this reason, we tried to apply the standard GSA algorithm to the field of ecological scheduling, but found in the research that the standard GSA algorithm itself has problems such as premature convergence and insufficient development ability in the later stage of the search.
[0004] It can be seen that the existing technology has technical problems of premature convergence and local optimization

Method used

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  • Ecological regulation and control method and system for cascade hydropower station group
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  • Ecological regulation and control method and system for cascade hydropower station group

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Embodiment 1

[0123] Taking Hongjiadu, Dongfeng, Suofengying, Wujiangdu and Goupitan five power stations on the main stream of Wujiang River as the object of implementation of the present invention, the corresponding parameters are set to N=50, α=20,G 0 =100, β=1.5, and the penalty coefficients for each constraint violation are set to 1000.

[0124] In order to verify the practicability of the present invention, particle swarm optimization (Particle Swarm Optimization, PSO), differential evolution algorithm (Differential Evolution, DE), standard gravitational search algorithm (Gravitational Search Algorithm, GSA), improved gravitational search algorithm (Improved Gravitational Search Algorithm) , IGSA), Gbest-guided Gravitational Search Algorithm (Gbest-guided Gravitational Search Algorithm, GGSA) and the method of the present invention are used as comparison methods. Three typical water inflow situations (extremely dry year, dry year, and moderately dry year) were selected as the impleme...

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Abstract

The invention discloses an ecological regulation and control method and system for a cascade hydropower station group, and belongs to the field of cascade hydropower station group optimization and ecological dispatching, and the method comprises the steps: taking the water level of each power station in the cascade hydropower station group as an individual in a group, setting the maximum number ofiterations, and randomly initializing the group; updating the global optimal position of the current population in the iteration process; updating the position of each individual in the current population by utilizing the speed of each individual in the current population; zooming the globally optimal position of the current population by using the Levy random number, subtracting the zoomed position of each individual in the current population from the globally optimal position of the current population, and superposing the zoomed position with the random individual in the current populationto obtain the mutated position of each individual in the current population; and taking the global optimal position when the maximum number of iterations is reached as the optimal scheduling scheme ofthe cascade hydropower station group. The invention is high in convergence speed, and can effectively avoid falling into local optimum.

Description

technical field [0001] The invention belongs to the field of cascade hydropower station group optimization and ecological dispatching, and more specifically relates to an ecological control method and system for a cascade hydropower station group. Background technique [0002] In traditional reservoir operation, managers did not consider the upstream reservoir, downstream reservoir and the ecosystem of the reservoir area, resulting in changes in the topographical characteristics of the upstream and downstream of the dam and the artificialization of the natural hydrological cycle. With the development of cascade reservoir scheduling methods and the improvement of human safety awareness, a new field of ecological operation research has gradually attracted the attention of many scholars. Through ecological management, it is possible to effectively prevent the reduction of runoff, improve the quality of the water environment, protect biodiversity, and realize the harmonious deve...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06G06N3/00
CPCG06Q10/04G06Q50/06G06N3/006
Inventor 冯仲恺刘帅牛文静蒋志强刘懿
Owner HUAZHONG UNIV OF SCI & TECH
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