| Title |
Development of Edge Gateway System for Data Acquisition on Transmission Line of AC/DC Hybrid Distribution Network |
| Authors |
윤기하(Giha Yoon) ; 김근용(Geunyong Kim) ; 유학(Hark Yoo) ; 김성창(Sung-Chang Kim) ; 김재인(Jaein Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2024.73.8.1360 |
| Keywords |
AC/DC Hybrid Distribution Network; MVDC; Edge Computing; Edge Gateway System; Digital Twin |
| Abstract |
In this paper, we propose an edge computing-based gateway system (EGW) for the efficient collection of sensor data from transmission lines in AC/DC hybrid distribution networks. The proposed system allows for parallel collection of sensor data, enabling the detection of instantaneous electrical events, such as voltage sags, without omission. It also provides a hardware-based event detection function for rapid identification of sudden abnormal events. Additionally, the EGW offers IEEE 1588v2(PTP)-based time synchronization to accurately estimate the location of events on transmission lines. The edge gateway was implemented on an FPGA-based test board, and performance tests were conducted in a simulated laboratory environment. In a Peer-to-Peer setting, the time synchronization error was approximately ±30ns. The sensor data collection performance for parallel channels showed that the collection time for one channel was identical to that for four channels. Moreover, the hardware-based event detection module was able to detect events within an average of 560 s after data injection, with a deviation of about 100 s. The edge gateway will be μ μ applied to the MVDC testbed at the KEPCO for collecting sensor data from DC transmission test line. Then, the system will be further developed into a fully operational product for the AC/DC hybrid distribution network testbed. |