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Method for evaluating importance of low-voltage transformer area communication network node

A technology of node importance and communication network, which is applied in the field of evaluation of the importance of communication network nodes in low-voltage station areas, and can solve the problems of lack of importance of communication network nodes in low-voltage station areas and inaccurate calculation methods

Pending Publication Date: 2021-01-08
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the lack of a method for evaluating the importance of communication network nodes in low-voltage station areas in the prior art, and the inaccuracy of the existing calculation method for the importance of communication network nodes, and to provide a more accurate and specialized An evaluation method for the importance of communication network nodes in low-voltage station areas

Method used

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  • Method for evaluating importance of low-voltage transformer area communication network node
  • Method for evaluating importance of low-voltage transformer area communication network node
  • Method for evaluating importance of low-voltage transformer area communication network node

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Embodiment

[0064] Such as Figure 1 to Figure 2 Shown is an embodiment of a method for evaluating the importance of a communication network node in a low-voltage station area of ​​the present invention, including the following steps:

[0065] a: Read the system data to get the line business flow in normal state;

[0066] b: Calculate the Theil entropy of system business traffic fluctuation by simulating node fault;

[0067] Theil entropy is based on information entropy and considers the influence of multiple factors to measure income differences within or between regions. Compared with other measures of balance degree, the solvable characteristics of Theil entropy can effectively improve its operation efficiency.

[0068] When a node in the communication structure of the low-voltage station area fails, not only the service flow of the link connected to this node will change, but also the service flow of all links in the system will fluctuate. In order to measure the impact of a node fa...

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Abstract

The invention relates to the technical field of important node identification of an electric power transmission network, in particular to a method for evaluating the importance of nodes of a low-voltage transformer area communication network. The method comprises the following steps: reading the service flow of a system line in a normal state; simulating a node fault to calculate a system serviceflow fluctuation Tille entropy; calculating a service importance index of each node; obtaining an approximate centrality index of each node; calculating a comprehensive importance index of each node in combination with the indexes; checking whether all nodes are traversed or not, and if so, entering the next step; if not, returning to the step of calculating the system service flow fluctuation Tille entropy; and sorting the importance degrees of the nodes according to the comprehensive importance degree indexes. The invention aims to overcome the defects that a method special for evaluating the importance of the communication network node of the low-voltage transformer area does not exist in the prior art and an existing calculation method for the importance of the communication network node is not accurate enough, and provides an accurate evaluation method special for the importance of the communication network node of the low-voltage transformer area.

Description

technical field [0001] The invention relates to the technical field of identification of important nodes of a power transmission network, and more specifically, to a method for evaluating the importance of a communication network node in a low-voltage station area. Background technique [0002] The current research on the importance of nodes in complex networks is mainly based on the ranking methods of nodes' near-field and global information, and there are many limitations. The existing research field is mainly the identification of important nodes of the power transmission network, and the methods used in the research of low-voltage station areas and distribution network communication nodes are relatively complicated and difficult to practice. In the existing research, the evaluation of the importance of communication nodes in the power network basically relies on graph theory and classical complex network theory, and betweenness is usually used to describe the importance ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L41/14H04L41/0631
Inventor 黄国政赵瑞锋王海柱刘洋易晋黄伟杰詹一佳
Owner GUANGDONG POWER GRID CO LTD
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