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Power system network attack detection method based on space-time relevance

A technology of power system and detection method, which is applied in the direction of transmission system, digital transmission system, data exchange network, etc., to achieve the effect of avoiding missed detection and fast detection speed

Active Publication Date: 2021-12-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, and to provide a method for detecting attacks on power system networks based on spatio-temporal correlation, so as to solve or improve the above-mentioned problems

Method used

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  • Power system network attack detection method based on space-time relevance
  • Power system network attack detection method based on space-time relevance
  • Power system network attack detection method based on space-time relevance

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Embodiment Construction

[0069] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0070] According to Embodiment 1 of the present application, the space-time correlation-based power system network attack detection method of this solution includes the following specific steps:

[0071] Step S1, extracting measurement data in the power system, and forming the measurement data into a space-time matrix;

[0072] Step S2, constructing a volumetric Kalman filter-based time correlation function based on histori...

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Abstract

The invention discloses a power system network attack detection method based on space-time relevance, which comprises the following steps: S1, extracting measurement data in an electric power system, and forming a space-time matrix by the measurement data; S2, constructing a time correlation function based on volume Kalman filtering according to the historical measurement data, and predicting the state of the power system at a position and a next moment; S3, constructing a Gaussian process regression model to obtain a spatial correlation function of associated nodes in the topological structure of the power system; and S4, performing feature extraction on the time correlation function and the space correlation function by adopting a neural network. The detection method provided by the invention is independent of system parameters, has general applicability, can carry out real-time detection, has relatively high detection speed, is different from a detection method based on a model, and does not need to set a threshold value, so that the problems of missing detection and false detection caused by improper threshold value setting are avoided.

Description

technical field [0001] The invention belongs to the technical field of power system network attack detection, and in particular relates to a power system network attack detection method based on time-space correlation. Background technique [0002] The security and stability of electric energy supply is related to social economic production and national security. With the development of the Internet, the power system has gradually developed from the traditional physical power transmission network to an intelligent cyber-physical system that combines physical power transmission with network computing and communication systems. While the power system is intelligent, its complexity also brings new risks to safe operation. Among many risks, cyber attacks in power systems cannot be ignored. [0003] Cyber ​​attacks in the power system are aimed at destroying or affecting the safe and stable operation of the power system. By attacking the power information system, the availabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/24G06N3/04
CPCH04L63/1416H04L63/1433H04L63/1466H04L41/145G06N3/045Y04S40/20
Inventor 李坚胡维昊黄琦鹿超群张光斗张真源蔡东升井实易建波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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