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Method for identifying vulnerable coupling link between power grid control system and power primary equipment

A technology for control systems and primary equipment, applied in transmission systems, electrical components, instruments, etc., to reduce the probability of cascading failures and improve robustness

Pending Publication Date: 2022-03-01
STATE GRID SICHUAN ECONOMIC RES INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The main technical problems to be solved by the present invention are as follows: first, how to construct a vulnerable transmission link identification method that can truly reflect the power flow distribution characteristics of power primary equipment according to the electrical characteristics and topology characteristics; importance, constructing a vulnerable control link identification method that can truly reflect the importance of nodes in the smart grid control system; third, how to comprehensively consider the interdependence and coupling between the smart grid control system and primary power equipment, and construct a method that can truly reflect its adverse effects on the Identification Method of Vulnerable Coupling Links in Smart Grid Based on Mutual Transmission of Side Networks

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  • Method for identifying vulnerable coupling link between power grid control system and power primary equipment
  • Method for identifying vulnerable coupling link between power grid control system and power primary equipment
  • Method for identifying vulnerable coupling link between power grid control system and power primary equipment

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Embodiment Construction

[0059] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.

[0060] The embodiment of the present invention provides a method for identifying vulnerable coupling links between a power grid control system and primary power equipment. The method is composed of four parts: (1) Establishing a dependent coupling network model between a smart grid control system and a primary power system according to actual conditions; (2) According to the impact of physical grid electrical constraints and topological characteristics on the observability and controllability of smart grid control systems, construct a vulnerability point identification method based on node centrality; (3) Construct a method based on "physical domain-information domain" Comprehensive risk measurement indicato...

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Abstract

The invention relates to the field of safe and reliable operation guarantee of an intelligent power grid, and discloses a method for identifying a vulnerability coupling link between a power grid control system and power primary equipment, which comprises the following steps of: 1, establishing a network model for the dependent coupling of the intelligent power grid control system and the power primary equipment, and the network model comprises a power network and an information network; step 2, constructing a vulnerability identification method based on node centrality so as to obtain a node electrical centrality index between nodes in the power network and a proximity centrality index of effective information length between the nodes in the information network; step 3, calculating a comprehensive risk measurement index DLCC (Pi, Ci) based on a power network-information network; and step 4, calculating the comprehensive risk measurement index DLCC (Pi, Ci), finding out the key vulnerability coupling link of the power network-information network and removing the key vulnerability coupling link. According to the method, the robustness of the intelligent power grid control system is improved to the maximum extent, and the probability of cascade faults is reduced.

Description

technical field [0001] The invention relates to the field of safe and reliable operation assurance of smart grids, in particular to a method for identifying vulnerable coupling links between a grid control system and primary power equipment. Background technique [0002] The smart grid has now developed into a grid cyber-physical system (cyber-physicalpower system) formed by the deep integration of the information network (that is, the power communication network and the power equipment monitoring / control information system) and the power network (that is: the power primary system). system, CPPS). With the continuous expansion of the application range of communication and control technology in the power system, the interdependence between the information network and the power network has been deepened, mainly as follows: the power network nodes provide energy support for the control network nodes, and the operation of the power network is not only limited by the reliability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L41/14H04L43/08H04L41/12G06Q10/04G06Q50/06
CPCH04L41/145H04L41/14H04L43/08H04L41/12G06Q10/047G06Q50/06
Inventor 姚实颖罗劲瑭董九玲阳小龙马天男王紫淇王玉东张晨琳吴明埝
Owner STATE GRID SICHUAN ECONOMIC RES INST
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