线路纵联保护中双向复用段倒换环动态时延特性  

Research on Dynamic Transmission Delay of Bidirectional Multiplex Section Switching Ring Used for Line Pilot Relay

作　　者：金华锋[1] 余荣云[2] 朱晓彤[1] 俞建中[3] 吴奕[3] 褚明[3] 郑玉平[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏省南京市211100 [2]江苏省电力公司,江苏省南京市210024 [3]苏州供电公司,江苏省苏州市215004

出　　处：《电力系统自动化》2006年第3期65-70,共6页Automation of Electric Power Systems

摘　　要：介绍了双向复用段倒换环的工作原理。以苏州电力光纤通信网西外环为对象,研究了各种通道故障下复用段保护切换、恢复过程中通道时延的变化情况。研究结果表明:苏州电力光纤通信网西外环采用双向复用段倒换模式,即使在保护切换、恢复过程中也能保证通道双向时延一致,适用于包括采用数据通道同步方法线路纵差保护在内的任何线路纵联保护。This paper describes the principle of the bidirectional multiplex section switching optic communication grid as the object of research, this paper studies the transmission de ring. Taking the Suzhou power fiber lay during protection and recovery in various channel failures. The results indicate that the west-outer-ring in Suahou power fiber optic communication grid that adopts the bidirectional multiplex section switching mode can ensure consistency of the bidirectional transmission delay even during protection and resumption, making it suitable for any line pilot relay including the line current differential relay based on the method of data channel synchronization.

关 键 词：线路纵联保护 双向复用段倒换环 通道时延 

分 类 号：TN915.853[电子电信—通信与信息系统]