基于光纤技术的纵联方向保护信息交换方法  

A New Method of Line Pilot Relay Communication Based on Fiber Optic Technology

作　　者：秦红霞[1] 李营[1] 赵玉才[1] 张月品[1] 陈秋荣[1] 

机构地区：[1]北京四方继保自动化股份有限公司,北京市100085

出　　处：《电力系统自动化》2007年第11期70-73,共4页Automation of Electric Power Systems

摘　　要：阐述了利用光纤通信技术以现有的微机型纵联距离、纵联零序方向线路保护原理为基础,通过光缆直接通信或经由复用准同步数字系列(PDH)/同步数字系列(SDH)系统,通过微波通道实现超高压线路两侧纵联保护之间的信息交换,实现新型方向式线路纵联保护,并可解决高阻接地故障时测距、复杂故障选相等信息交换的方案。Based on the principle of the pilot distance or zero sequence direction relay, a new design of the transmission line pilot relay using fiber communication technology is described. The signal exchange of the ultra-high voltage transmission line pilot relay is achieved through the fiber optical channel or microwave channel by using the multiplex SDH/PDH system. The new design can also resolve such problems as high-resistance fault location, complex fault phase selection, etc. using the two-terminal transmission line information.

关 键 词：线路纵联保护 光纤通信技术 信息交换 

分 类 号：TM773[电气工程—电力系统及自动化]