Electric power CPS information attack identification method based on stack type self-encoding network model

Abstract

The invention relates to an electric power CPS information attack identification method based on a stack type self-encoding network model, which is characterized by comprising the following steps: introducing a maximum information coefficient to select data characteristics according to properties such as CPS data non-function dependence and non-linear correlation, and determining an optimal attackcharacteristic set; constructing an information attack identification model based on a stack type self-encoding network, and setting an unsupervised pre-training encoder and a supervised fine tuningclassifier to perform network parameter training updating; model initial parameter optimization based on the adaptive cuckoo algorithm is realized. The problems of complex data characteristics, relatively low identification precision and the like in the power CPS information attack identification process are solved, and the method has the advantages of being scientific, reasonable, high in applicability, good in effect and the like.

Description

technical field [0001] The invention relates to the field of electric power cyber-physical systems, and relates to an electric power CPS information attack identification method based on a stacked self-encoding network model. Background technique [0002] With the continuous development of information technology, the information side and the physical side of the power system are increasingly interactively coupled, gradually forming a power cyber-physical system (CPS) that integrates computing systems, communication networks, and physical environments. In the process of power grid production management and scheduling control, information systems are increasingly inseparable. But at the same time, some loopholes in information systems may be exploited by attackers, causing serious threats to physical systems across space, and even causing temporary paralysis of important infrastructure. The security issues on the information side of power CPS have gradually attracted people's...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of complex data features and relatively low identification accuracy in the process of electric power CPS information attack identification, and propose a power system based on stacked self-encoding network model from the perspective of correlation and redundancy of CPS data features. CPS information attack identification method

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