Method for evaluating vulnerability node of electric cyber-physical system based on undetectable information attack pre-warning technology

A technology for information attack and information detection, applied in transmission systems, digital transmission systems, electrical components, etc., to achieve the effect of comprehensive technical framework, enhanced protection, and safe and stable operation

Inactive Publication Date: 2017-05-24
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This optimal design process is more challenging than protecting devices against detectable attacks

Method used

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  • Method for evaluating vulnerability node of electric cyber-physical system based on undetectable information attack pre-warning technology
  • Method for evaluating vulnerability node of electric cyber-physical system based on undetectable information attack pre-warning technology
  • Method for evaluating vulnerability node of electric cyber-physical system based on undetectable information attack pre-warning technology

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Embodiment Construction

[0040] The technical solution of the present invention will be described in detail below according to the accompanying drawings, and the purpose and effect of the present invention will become more obvious.

[0041] figure 1It is topology of IEEE 3-machine 6-node system. Through this example, the object of the present invention can be better explained. figure 1 There are three generators in :

[0042] (1)w 1 ,w 2 ,w 3 is the rotation frequency;

[0043] (2)δ 1 ,δ 2 ,δ 3 for the corner;

[0044] (3) θ 1 ,...,θ 6 is the phase angle that may be attacked;

[0045] (4) System u 1 , u 2 for simulated attacks;

[0046] (5) output y 1 ,y 2 Used to observe attacks and identify potentially undetectable nodes.

[0047] Such as figure 1 As shown, add the input (attack) u 1 Used to judge node θ 4 Whether it is a vulnerable node, similarly u 2 Used to judge node θ 5 Whether it is a vulnerable node. when u 1 , u 2 , the method of the present invention is used to jud...

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Abstract

The invention discloses a method for evaluating a vulnerability node of an electric cyber-physical system based on an undetectable information attack pre-warning technology. A partial model of the electric cyber-physical system is generated according to a physical topological graph of an electric power system in the electric cyber-physical system, pre-warning of an undetectable information attack under a general information attack and topology condition is analyzed and the damage of the attack is evaluated, and the potential risk of the ECPS is perceived in advance to obtain a more accurate analysis result, so that a grid company can evaluate the running state of the ECPS from a global perspective and the protection for a vulnerability link is enhanced timely to protect the ECPS to run safely and stably. Pre-warning of a multi-node information attack is realized based on analysis of a single-node information attack. In addition, the information attack in the real system often has continuity, the method adds prediction of a continuity information attack on the basis of analysis of an instantaneous information attack, and the overall vulnerability of nodes and the ECPS is evaluated. A technical framework of the invention is more comprehensive.

Description

technical field [0001] The invention relates to the field of electric cyber-physical systems (Electric Cyber-Physical Systems, ECPS) security assessment, in particular to information attack early warning and ECPS vulnerability node assessment methods. Background technique [0002] Today's smart grid has achieved a high degree of integration between information communication technology, advanced control technology, and modern power grids, and has developed into an ECPS that closely integrates information space and power systems. However, various information attacks against ECPS are emerging in an endless stream, especially information attacks against wide-area measurement systems and supervisory control and data acquisition systems (SCADA) will cause serious damage to ECPS. The harm of information attacks to ECPS such as spoofing attacks, denial of service attacks, false data injection attacks, and replay attacks has been widely confirmed in cases that have erupted in recent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/24
CPCH04L63/1466H04L41/145H04L63/20
Inventor 王宇飞赵婷徐文渊林志赟杨强徐昀孙辰军王轶楠张泰民卢昕
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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