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近年来,由于配电网自动化通信系统成本高,可靠性低,发展缓慢,使得配电网自动化建设不能有效推进。因此有必要总结以往的建设经验和目前新开发的先进通讯技术,找出适合配电网自动化建设的通信方案。通信系统可以分为3个层次,第一层是主站与子站之间的通讯层;第二层是子站与馈线主干线上的终端设备(馈线终端设备FTU、开闭所终端设备DTU等)之间的
In recent years, due to the high cost of automation system of distribution network, low reliability and slow development, automation of distribution network can not be effectively promoted. Therefore, it is necessary to summarize the past construction experience and the newly developed advanced communication technology to find out the communication scheme suitable for the automation of distribution network. Communication system can be divided into three levels, the first floor is the communication layer between the main station and the substation; the second layer is the substation and feeder trunk line terminal equipment (feeder terminal equipment FTU, opening and closing of the terminal equipment DTU Etc.) between