Reform Scheme Design For Intelligence Of220kV Substation

In this paper, according to the" technical guide for smart substation substation intelligent transformation"," technical specifications" to the traditional220kV substation intelligent transformation, The main application of GIS combination electric appliance, electronic transformer, IEC61850fiber optic Ethernet communication technology, microcomputer protection, Intelligent reconstruction of substation equipment. By adopting the "three layer two network" layered design, due to the current" a device technology" and" two technology" fusion relative difficulty. The process layer and the spacer layer design. Local intelligent control cubicle installation only" merging unit"," intelligent terminal"," on-line monitoring function group". Measurement, control, protection, fault recording function is installed in the control room separate groups of screen. Process layer network and station control network uses the" double backup optical fiber Ethernet" and equipped with GPS time synchronization network. After the transformation of a device side of the on-line sensor installation design, realization of a equipment intelligent online monitoring function for the power supply system for equipment" maintenance " provide the basis; communication links using IEC61850fiber optic Ethernet communication technology, Save a large amount of raw materials, reduces the failure rate; two protection device mainly adopts the microcomputer protection, to solve the traditional electromagnetic protection brings a series of problems, shortens the protection action time, improve the reliability of power grid operation.