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Power grid defense method, system, equipment and medium based on moving target defense

A mobile target defense and power grid technology, applied in the transmission system, electrical components, etc., can solve the problems of poor practicability, achieve the effect of enhancing practicability, balancing defense effect and cost, and realizing security and economy

Active Publication Date: 2021-12-28
XI AN JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the lack of practicability of the moving target defense scheme in the above-mentioned prior art, and provide a power grid defense method, system, equipment and medium based on moving target defense

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  • Power grid defense method, system, equipment and medium based on moving target defense
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  • Power grid defense method, system, equipment and medium based on moving target defense

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0053] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention belongs to the technical field of power grid attack defense, and discloses a power grid defense method, system, equipment and medium based on moving target defense, including: S1: acquiring topological parameters and measurement value data of the power grid; The value range of topology parameters is randomly selected within the value range of topology parameters as the defense topology parameters, and the set points of each device in the grid are set to obtain the moving target defense scheme of the grid; S3: According to the measured value data and the preset grid Check the moving target defense scheme with running constraints; when the verification is passed, proceed to S4; otherwise, return to S2; S4: Based on the principle of AC state estimation, and according to the preset false system state of the power grid, obtain the AC state estimation residual of the power grid under the moving target defense scheme ; When the AC state estimation residual is not less than the preset threshold, go to S5; otherwise, return to S2; S5: False data injection attack defense of the power grid through the moving target defense scheme. Improve the practicability of the moving target defense scheme.

Description

technical field [0001] The invention belongs to the technical field of power grid attack defense, and relates to a power grid defense method, system, equipment and medium based on moving target defense. Background technique [0002] With the development and application of electric power information and communication technology, energy flow and information flow are deeply integrated, and they work together on the state perception and control decision-making of the power grid. However, the open communication environment and complex cyber-physical interaction process make network attacks one of the important factors affecting the safe and stable operation of smart grids. False data injection (FDI) attacks have attracted widespread attention from academia and industry because of their concealment and powerful destructive power. The attacker uses the information of the power grid to calculate the measured value of the power meter that conforms to the physical laws but is differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1441H04L63/1466H04L63/1416H04L63/205
Inventor 张萌范栩祯沈超管晓宏
Owner XI AN JIAOTONG UNIV
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