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Power grid protection method in attack scene

A technology for attacking scenarios and power grids, applied in reasoning methods, electrical components, transmission systems, etc., can solve problems such as low practicability and huge cost of defense technology

Pending Publication Date: 2021-01-22
STATE GRID GASU ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing defense technologies are costly and good technologies have low practicability

Method used

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  • Power grid protection method in attack scene
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  • Power grid protection method in attack scene

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Experimental program
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Embodiment 1

[0031] A power grid protection method in an attack scenario, comprising the following steps:

[0032] 1) Construction of the attack and defense model of the power system: the attack and defense model of the power system is mainly divided into a single model and a dual model. Among them, the single model includes three types of host, network, and management, and the dual model includes three types of models: host network, host management, and network management. Deliberate attacks from the outside world are divided into three categories: large-scale, small-scale and non-offensive, and the behavior of the defender is divided into three categories: complete defense, partial defense and non-defense;

[0033] 2) Build an independent attack and defense model:

[0034] a) Host attack-defense model: In the complete defense mode, when the attacker adopts a large-scale offensive strategy, the benefits adopted are the largest; in the partial defense mode, when the attacker adopts a small...

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PUM

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Abstract

The invention discloses a power grid protection method in an attack scene, and belongs to the technical field of power grid safety. Power grid protection in an attack scene is realized through four steps of constructing an attack and defense model of a power system, constructing an independent attack and defense model, managing the attack and defense model and constructing a dual attack and defense model. The stability degree of the electric power system depends on whether the electric power system has an active defense attribute or not, the thought that the benefits of a defender are robbed is taken into consideration for the first time, an attacker attack and defense model and a defender attack and defense model are constructed from the perspective of attackers by taking a certain electric power system subnet as a case, and the relative benefit values of the two parties in different states are calculated; it is obtained that a power grid side selects a part of defense modes as the optimal defense strategy, the defense modes are properly corrected, and therefore power grid side defense is impeccable.

Description

technical field [0001] The invention belongs to the technical field of power grid security, and in particular relates to a power grid protection method in an attack scene. Background technique [0002] Energy is one of the most important forces driving the industrial development of the entire society. The energy system is responsible for the stable transmission of energy and is the only channel for energy transmission. As the main branch of the energy system, the power system has been the focus of hacker attacks in recent years: In 2010, Iran’s Natanz uranium enrichment plant was attacked by the stuxnet virus, which caused the Iranian nuclear power plant to lose its power generation capacity in a short period of time; in 2014, malicious The software BlackEnergy invaded the software system of American power turbines, and the U.S. power grid suffered no less than 79 hacker attacks; in 2015, the Ukrainian power system was attacked by BlackEnergy malicious code, causing a large-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G06N5/04
CPCH04L63/20H04L63/1441G06N5/042
Inventor 赵金雄张驯马志程李志茹马宏忠杨勇
Owner STATE GRID GASU ELECTRIC POWER RES INST