Research on IED Terminal Security Networking Structure of Intelligent Substation

摘要

The full deployment of intelligent substations will greatly reduce the difficulty and cost of information sharing, allowing interoperability between intelligent electronic devices (IEDs), which will facilitate high-performance, low-cost automation. This paper builds the security model of intelligent substation information system based on IEC61850. The IED networking scheme is an important foundation and guarantee of its security model. This paper focuses on the two basic networking forms and ring type and hybrid of process bus and station bus. Several types of network redundancy are introduced, and a new substation security model structure network design scheme is given. The results show that the network structure security model has practical significance.