南方电网SDH光纤通信环网继电保护通道分析  

Analysis on Relay Protection Channel of SDH Optical Network in China Southern Power Grid

作　　者：高鹏[1] 陈新南[1] 陆明[1] 金华锋[2] 

机构地区：[1]中国南方电网电力调度通信中心,广州510623 [2]南瑞继保电气有限公司,南京211100

出　　处：《南方电网技术》2007年第2期43-48,共6页Southern Power System Technology

摘　　要：依据南方电网SDH光纤通信环网的现状对继电保护通道倒换方式进行了研究。通过两纤双向通道倒换试验,研究了双向通道倒换环在各种运行情况下的时延特点,指出了线路纵差保护通信通道不能采用双向通道倒换环,应采用独立双通道的方式来提高保护的可靠性。Based on status quo of SDH optical communication network in CSG, the protective relay channel switching manner is analyzed. Through the experiment of double-direction switching in two pieces of fiber, the time-delay characteristics of double-direction channel switching in all running manners is discussed. It is pointed out that double-direction channel switch cannot be applied to line differential protection while it should be single double-channel instead to improve protection reliability.

关 键 词：SDH 光纤通信 继电保护 时延 

分 类 号：TM77[电气工程—电力系统及自动化] TN91[电子电信—通信与信息系统]