Analysis Of Networking Technology Of Relay Protection And Intelligent Control Equipment In Digital Substation

With the continuous development of industrial technology,the power grid is developing toward a more intelligent direction,In today's power grid,digital substations are springing up,The biggest difference between digital substation and traditional integrated automatic substation is the "de cable" of its secondary circuit",in addition,the acquisition of analog signals and the transmission of switches are carried out in the form of optical fiber networks.As the two loop service object,relay protection and automatic control device in substation is facing a revolutionary change,this paper aims at the analysis of digital substation relay protection and automatic control device networking mode and the traditional comprehensive stations and various differences in the different ways of organizing network,analyzed its advantages and disadvantages,through the test in the practical engineering application the optimal way for digital substation relay protection and control in different situations,provide useful directions and suggestions for the future of digital substation construction,reconstruction and maintenance.