• The Journal of the Korea institute of electronic communication sciences
• /
• v.17 no.6
• /
• pp.1113-1120
• /
• 2022

In this paper, a communication methodology for the digital FRTU(: Feeder Remote Terminal Unit) required by the smart grid distribution system was studied. The digital FRTU consists of a fault handling unit and a communication unit. The fault handling unit transmits fault information to the communication unit in case of a failure, and the communication unit is designed to autonomously determine the fault section through two-way communication between surrounding digital FRTUs. For performance verification, a performance verification system consisting of 3 line sections based on 3 digital FRTUs was constructed to enable fault simulation for various failure scenarios. Various fault cases including one phase ground fault, line-to-line short-circuit fault, and three-phase short-circuit fault were experimentally simulated on the established performance verification system, and the validity of the developed methodology was confirmed by proving the accurate fault section inference results for each fault simulation case.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2008.11a
• /
• pp.1224-1227
• /
• 2008

송변전자동화시스템에서 사용하는 주장치 와 RTU간에는 무선 통신망으로 TRS(Trunked Radio System), CMDA(Code Division Multiple Access) 그리고 에어미디어망을 사용하고 있다. 특히 디지털 TRS기술인 유럽 전자 통신 표준기구인 ETSI에서 개발한 TETRA는 임대망인 CDMA와 에어미디어망과는 달리 비임대망으로 비용적인 장점을 가지고 있다. 본 논문은 송변전자동화시스템에서 주장치 기능을 하는 DNP3.0 주장치 서버와 RTU의 기능을 하는 FRTU간에 TETRA 망을 사용할 수 있도록 MFTG(Multi Function Tetra Gateway) Platform을 구현하였다.