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Electric power CPS structure communication vulnerability evaluation method based on graph theory

A fragility, power technology, applied in data processing applications, instruments, computing, etc., can solve problems such as lack of dynamics and integrity

Pending Publication Date: 2020-07-21
STATE GRID HEBEI ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current traditional vulnerability assessment methods lack dynamics and integrity

Method used

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  • Electric power CPS structure communication vulnerability evaluation method based on graph theory
  • Electric power CPS structure communication vulnerability evaluation method based on graph theory
  • Electric power CPS structure communication vulnerability evaluation method based on graph theory

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Embodiment Construction

[0023] In order to make the objectives, technical solutions, and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present inv...

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Abstract

The invention discloses an electric power CPS structure communication vulnerability evaluation method based on a graph theory. The evaluation method comprises the following steps: 1, determining electric power CPS topological structure data and an interaction relationship between a power side and an information side; 2, identifying an initial risk source emergence node of the power side; 3, determining a maximum connected set in the power side network after the initial risk source node emerges; 4, removing nodes which do not belong to the maximum connected set in the power side; 5, removing the nodes losing the interaction relationship with the information side from the information side; 6, determining a maximum connected set in the information side network; 7, removing nodes which do notbelong to the maximum connected set in the information side; 8, rejecting the nodes losing the interaction relationship with the connected set in the power side; 9, outputting the number of failure nodes in the topological structure after risk fault transmission and the proportion of the number of failure nodes to the total number of initial power information nodes; and 10, evaluating the connectivity vulnerability of the electric power CPS topological network structure.

Description

Technical field [0001] The invention relates to the technical field of power system application management, in particular to a method for evaluating the structural connectivity vulnerability of power and power CPS (cyber-physical fusion system) based on graph theory. Background technique [0002] At present, the formation of power CPS is a process of continuous innovation and exploration. It is also a complex and slow process. There must be various risk factors, such as physical risk sources on the power side, information risk sources on the information side, and external environment. Risk sources and risk sources in the process of power information interaction will cause the failure of the power information system or the physical system, and then induce serious consequences. Therefore, it is particularly important to evaluate the structural vulnerability of the power information and physical integration system. [0003] While the power industry is paying more and more attention to...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/0639G06Q50/06
Inventor 周文博魏明磊李存斌石云芳赵德福
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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