Research And Practice Of Digital Substation Integrated Automation System

This thesis introduces the basic properties and the developments of the digital substation automation system, describes the characteristics of IEC 61850 standard series. Then, the abstract service model, the Object-Orient modeling method,the model of sampled values and GOOSE are further emphasized.In this paper, a project of integrated automation system is designed for the need of substation automation system and designed according to the characteristics of digital substation.Moreover, the intelligent terminal unit implementing the project described above is presented, the hardware design for integrated mainframe device and the software based on the programmable arrangement are further illustrated. Next, the prospect of product applications is eluded.On the basis of high concentration properties of the digital substation automation system information, the influence and opportunity of integrated protect is shown and discussed combine with real examples.