Intelligent power grid line state error data injection attack detector and detection method

A line status and injection attack technology, applied in data exchange networks, instruments, electrical components, etc., can solve problems such as cascading failures, wrong data injection attacks, delays, etc., to improve detection capabilities, reduce decision-making delays, and reduce delays Effect

Active Publication Date: 2018-10-19
湖南中科智云科技有限公司
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AI Technical Summary

Problems solved by technology

[0006] Although the above methods can effectively detect the injected erroneous data, there are still the following problems: (1) Most of the existing detection methods are not aimed at the erroneous data injection attack of smart grid transmission line sensors, if directly applied to the line state information Malicious modification detection has low detection accuracy; (2) The existing detectio...

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  • Intelligent power grid line state error data injection attack detector and detection method
  • Intelligent power grid line state error data injection attack detector and detection method
  • Intelligent power grid line state error data injection attack detector and detection method

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Embodiment Construction

[0059] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0060] image 3 It is an example of the detector based on the sub-controller of the present invention, including three layers of sub-controllers. The sub-controllers Sub-controller 1, Sub-controller 21, Sub-controller 22, Sub-controller 31, Sub-controller 32, Sub-controller 33 and Sub-controller 34 are numbered as sub-controllers 1, 2, 3, 4, 5, 6 and 7. A detector is installed on each sub-controller. A detector consists of four components: detector data collector, line marker, aggregator, and classifier.

[0061] The sub-controllers Sub-controller 31, Sub-controller 32, Sub-controller 33 and Sub-controller 34 of the third layer directly receive the data collected from the bottom data collector. Taking Sub-controller 31 (number j=4) as an example, the sensing data per unit time is transmitted to the detector data collector of Sub-controller 31, and th...

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Abstract

The invention relates to an intelligent power grid line state error data injection attack detector and detection method, and belongs to the field of intelligent power grid safety detection application. The detector is composed of four parts of a detector data collector, a line identifier, a data aggregator and a classifier. Compared with the conventional detector, the detector can be installed oneach sub-controller of the intelligent power grid. The computing resource, the storage resource and the communication resource of the sub-controllers are fully utilized to design a distributed detector framework. Each sub-controller is provided with an independent detector for judging error data injection. The characteristic of limited computing capacity of the sub-controllers is considered, the training process of the classifier is transferred to the central controller and each sub-controller only requires to classify the data. Meanwhile, the related six-dimensional arrays are selected to generate the sample points to act as the input of abnormity detection according to the inherent attribute of the line, i.e. the characteristic of constant resistance.

Description

technical field [0001] The invention relates to a detector and a detection method aiming at the attack of the wrong data injection of the circuit state of the smart grid, and belongs to the application field of smart grid security detection. Background technique [0002] Smart grid is a large-scale and complex system that is closely integrated with power grid and information system, including control system, detection system and physical system, such as figure 1 shown. Physical systems generate, transmit, distribute and use electricity. The detection system verifies whether the perceived physical system data is complete, and the verified data is transmitted to the control system. The control system sends out new control signals based on the perceived data, and the physical system further executes according to the control signals. The physical system consists of many grid physical components, such as transmission lines and consumers. The detection system consists of sensor...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/24G06K9/62
CPCH04L41/145H04L63/1416H04L63/1425G06F18/2411
Inventor 朱培栋刘欣荀鹏熊荫乔张竹娴冯璐
Owner 湖南中科智云科技有限公司
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