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Two-stage reactive power and voltage partition method and system based on modularity optimization

A technology of voltage partitioning and modularity, applied in reactive power compensation, AC network voltage adjustment, circuit devices, etc., can solve the problems of insufficient search efficiency and accuracy to meet industry needs, achieve good practical value, reasonable design, and easy Achieved effect

Inactive Publication Date: 2021-06-29
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

The artificial intelligence algorithm avoids the complexity of the hierarchical clustering algorithm and is suitable for large-scale network community mining, while the particle swarm optimization algorithm in artificial intelligence has the characteristics of easy implementation, fast convergence, and high precision, and is suitable for solving reactive power in power systems. Partitioning, but the existing technology is not enough to meet the needs of the industry in terms of search efficiency and accuracy

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  • Two-stage reactive power and voltage partition method and system based on modularity optimization
  • Two-stage reactive power and voltage partition method and system based on modularity optimization
  • Two-stage reactive power and voltage partition method and system based on modularity optimization

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[0100] 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 implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0101] The present invention proposes a two-stage reactive power and voltage partitioning method based on modularity optimization, such as figure 1 shown, including the following steps:

[0102] Step 1, performing central attraction clustering according to power system information, this step is the first stage of the two-stage reactive power and voltage partitioning method;

[0103] The power system information includes node information, branch information and capacity information; according to the power system information, the initial reactive power partitioning of the nodes of the re...

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Abstract

The invention belongs to the technical field of electric power system automation, and specifically relates to a two-stage reactive voltage partition method and system based on modularity optimization. The specific steps of the method include: 1) the first stage, performing central attraction clustering; 2) the second stage In the second stage, the modularity of the initial population is optimized using the particle swarm optimization algorithm, and the optimal solution of the modularity and the corresponding optimal reactive power partition are obtained; the system includes: power grid information collection module, initial partition module, and optimized partition module and partition display modules. The invention avoids the blindness of searching and improves the accuracy of searching.

Description

[0001] Technical field [0002] The invention belongs to the technical field of power system automation, and in particular relates to a two-stage reactive voltage partition method and system based on modularity optimization. Background technique [0003] Improving the voltage stability level of the power system and preventing the occurrence of voltage collapse accidents are the main issues that must be considered in the safe operation of the power system. The voltage control in the reactive area is an important means to ensure the safe and stable operation of the power system. [0004] At present, the hierarchical voltage control idea and scheme proposed by EDF is the most successful. Its central idea is to divide the power grid into control areas that are far away from each other and approximately decoupled from each other; The zoning of the power grid is the premise of realizing the voltage control of the reactive area. [0005] With the continuous development of the power ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16
CPCH02J3/16H02J2203/20Y02E40/30
Inventor 杨珺魏德用张化光孙秋野刘鑫蕊黄博南杨东升王智良王迎春汪刚
Owner NORTHEASTERN UNIV LIAONING
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