Method, device, equipment and medium for improving the survivability of electric power information-physical system

By identifying the key rings in the power information physics system and adjusting the network topology, the problem of poor destruction resistance of the power information physics network is solved, and the destruction resistance and work stability are improved at lower costs.

CN118690516BActive Publication Date: 2025-03-21CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Application Number
CN202411022109.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2025-03-21
Estimated Expiration
2044-07-29

AI Technical Summary

Technical Problem

In the prior art, the power information physical network has poor destructive resistance, and the cost of improving destructive resistance is too high, making it difficult to implement.

Method used

By determining the network topology model of the power information physics system, traversing nodes to obtain the ring structure data set, calculating the importance index of the ring structure, determining the key ring, and dividing the direct connection area and the non-direct connection area according to the key ring, adjusting the connection line to improve destruction resistance.

Benefits of technology

While controlling lower costs, it significantly improves the destructive resistance and working stability of the power information network, effectively responding to extreme disasters or cyber attacks.

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Abstract

The present invention relates to the field of system security, and in particular to a method, device, equipment and medium for improving the invulnerability of an electric information-physical system, by determining a network topology model corresponding to the electric information-physical system; traversing the nodes in the network topology model to obtain a ring structure data set; calculating the importance index of all ring structures in the ring structure data set, and determining the ring structure with the largest importance index as a critical ring; determining the direct connection area and the indirect connection area in the network topology model according to the network topology model and the critical ring; the nodes in the indirect connection area are not directly connected to the nodes in the critical ring; adjusting the connection line between the direct connection area and the indirect connection area, so that the invulnerability index and the cost-benefit index of the adjusted network topology model meet the preset target value. The present invention effectively responds to extreme disasters or network attacks by identifying critical rings and using the optimal edge addition strategy.
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