Design and application for Transformer District Smart Fusion Terminal under the background of Energy Internet

At present, there are many kinds of devices in distribution network. The devices have similar functions but cannot share their data with each other, causing a waste of equipment resources and high costs for operation and maintenance. To solve the problems above, we proposed a terminal design scheme with hardware of high versatility, software in the form of Application (APP) and functions based on modularization design. We developed 10 basic function apps and 20 business function apps including the data center. And we designed Smart Fusion Terminal with the functions of topology identification, load identification and distributed energy management. We conducted Smart Fusion Terminal’s pilot application in 14 provinces and conducted test on terminal’s evaluation function for meter clock accuracy. The results show that, Smart Fusion Terminal can realize all the monitoring and acquisition functions of the original de-vices with the success rate higher than 99%. By adopting expansion module and corresponding function app, it can also meet the diversified requirements in different distribution networks. The application of Smart Fusion Terminal can improve the flexibility and scalability of terminal construction, reduce the investment cost of power grid equipment and improve on-site maintenance efficiency.