Design and implementation of a real-time data acquisition system based on IEC61870-5-104 for distribution network

This paper designs and implements a stable, high-performance and secure real-time data acquisition system for distribution network. The data acquisition system completes the data communication module which supports the standard IEC61870-5-104 protocol and improves the traditional data acquisition method of poll according to the actual environment of the distribution network to ensure the efficiency and security of data communication. And the system is based on the real time application platform (RTAP) and ensures its stable operation effectively by utilizing the real-time database and tool set that provided by RTAP. In addition, the system uses a unified data interface to facilitate the integration with the upper application for power distribution network, such as GIS, marketing system and so on.