Analysis of the Key Technologies and Information Security of the 220kV Digital Information Substation

Abstract

Due to its unique advantages in the construction, operation, maintenance and management and other aspects, the digital information substation has achieved rapid development in China in recent years, and many areas are conducting the pilot actively. According to the design features of the Baiyangdian 220kV digital information substation in Baoding City of Hebei Province in China, this paper analyzes some key technologies in the engineering design and implementation. The digital substation is mainly hierarchically constructed by the optoelectronic transformer, the intelligent primary devices and the network secondary devices on the basis of IEC61850 communication protocol, and it is the modern substation that can achieve information sharing and interoperability between the devices. Finally, the paper proposes solutions to the information security issue of the digital information substation.