Research On Compliance Analysis Techology Of Intelligent Substation Protocol Based On TTCN-3

The research on the compliance analysis technology of transmission protocol in smart substations is essentially to study the intelligent cell transmission protocol safety analysis and enhancement technology of the power grid and to enhance the power grid security protection capability.It is the need of implementing the state's safety control policy for industrial control systems and is of strong construction the inherent protection of smart grid.This dissertation first studies the key technologies in the transmission protocol compliance analysis system.Based on the full understanding of the security threats existing in the transmission protocol of the intelligent cell,this paper analyzes the intelligence in terms of integrity,confidentiality,identity authentication and access control.Based on the IEC62351 standard smart substation protocol security enhancement framework,and on this basis to design a TTCN-3 based on the transmission protocol compliance analysis system.Based on the compliance system framework of TTCN-3,this paper studies the IEC62351 transmission protocol interaction process,and designs the compliance analysis model according to the different characteristics and data flow of each transmission protocol.The compliance analysis system based on TTCN-3 realizes the compliance analysis and detection of GOOSE protocol,SMV protocol and MMS protocol.It not only realizes the security analysis of the transmission protocol with different security enhancements,but also can regulate the data flow of the transmission protocol according to the compliance analysis model.This enhances the level of information security protection and the information security detection capability of the transmission protocol for the smart grid service system in smart substations.Finally,the system passed the test.