Analysis of Time Characteristics of MMS Protocol Transmission in Intelligent Substation
With the rapid cross-integration of industrialization and informatization, industrial network security issues are becoming more and more serious. In this paper, the time characteristics of MMS protocol transmission in intelligent substation are analyzed according to the security scenario of intelligent substation system, and the time characteristics of MMS protocol transmission are analyzed with the methods of Fourier transform and wavelet transform. Through analysis, a method of establishing the baseline of message transmission time characteristics can be obtained, which can be used to detect the anomalies in the intelligent substation system network.
KeywordsIntelligent substation MMS protocol Fourier transform Wavelet transform
This work was supported by “Research on Lightweight Active Immune Technology for Electric Power Supervisory Control System”, a science and technology project of State Grid Co., Ltd in 2019.
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