Application of Information Integration in Intelligent Substation

In this paper, the data of information in intelligent substation are classified, information flow in communication network is analyzed, based on IEC61850 standards, and there are four categories: control and protection unit, the centralized fault recording unit, the monitoring and five-prevention unit and the measuring, in the application systems of substation. And then, the information integration scheme applied to intelligent substation is proposed. The plan completes the information collect, processing, upload and display, and other functions, realizes real-time communication efficiently between each layer in the internal substation, and between substations and higher control center, based on the unified modeling of all objects within the substation, building information integrated platform in the station level. Information integration platform can not only ensure authenticity, integrity and consistency within the substation information data, but also maximize the information sharing and interoperability of the equipment among application systems in the substation.