Research On Intelligent Substation Primary Equipment And On-line Monitoring

It’s the goal and development tendency of future power system to construct strong and smart grid, which has been considered as one of the national strategies. Strong and smart grid is based on stable network frame, supported by the information and communication platform and marked by intelligent control. Smart grid includes all the aspects of a power system, such as generation, transmission, substation, distribution, consumption and dispatch, covers all the voltage levels and achieves a deep integration of power flow, information flow and business flow. As a result, it is a kind of modernized power grid, which is reliable, efficient, environmental, open and Interactive friendly. Intelligent substation, whose core technology is to realize the information sharing and interoperability inside the substation or between the substation and control station, through the intelligent primary and secondary equipments.This article analyzes the background, development trends and the principles of substation primary equipment Intelligentization and on-line monitoring, presents the technical requirements of intelligent primary devices, and finally proposes the design scheme of the220kV substation primary equipment Intelligentization and online monitoring.