Security Management and Traceability of Substation Software Versions

Abstract

At present, the software and configuration of substation automation equipment have not undergone rigorous testing and verification or centralized management, which has brought great risks to the safe operation and maintenance of substation automation systems. A three-level (network-provincial-local) automated operation and maintenance management system architecture is designed in this paper to realize the centralized and unified management and control of equipment software and other software versions. Based on the digital authentication technology and national secret algorithm, the integrity and traceability of software versions are achieved through digital signature and verification of equipment software in substations. The key contents and innovation in this paper include: (1) the centralized and unified management and control of the substation equipment software and configuration files are achieved through designing a three-level automated operation and maintenance management system; (2) the integrity and traceability of software versions in each process is realized through step-by-step digital signature and verification of equipment software and configuration files using digital authentication technology and national encryption algorithm.

Keywords

• substation safe operation and maintenance
• dispatch certificate
• traceability
• digital certification
• sm2