基于光通信系统建立时间传递网络技术的研究  

Study on Time Transmission Network Based on Optical Communication System

作　　者：焦群[1] 马涛[1] 何迎利[1] 丁鼎[1] 

机构地区：[1]国网电力科学研究院,江苏南京210003

出　　处：《电力系统通信》2011年第1期21-27,共7页Telecommunications for Electric Power System

摘　　要：电网时间统一系统的关键是高精度、高可靠性的时间传递网络,以及时间信号传递技术。文章分析了电网对时间传递的要求、SDH光传输系统的特点,以及高精度时间传递技术;研究了具有自适应补偿特性的实时双向脉冲法时间传递技术,适应E1通道的成帧编码和定位测量技术;从理论上分析了影响时间传递误差的原因,并给出实地测试数据的分析验证报告;全面阐述了时间传递过程中的各项关键技术。High precision and high reliable time transmission network and time signal transmission technology are the key of time network of power grid.This paper analyses the demand of power grid on time transmission,the characteristics of SDH optical transmission and high-precision time transmission technology.It discusses the time transmission technology based on the two-way pulse method with adaptive compensation,E1 channel coding techniques and location measurement techniques,theoretically analyses the leading causes of time transmission error,and put forward an analysis on test data. The key technology applied in the process of time transmission is also introduced in the paper.

关 键 词：电网时间统一系统 时间传递网络 SDH 时延补偿 时间传递误差 

分 类 号：TN919.34[电子电信—通信与信息系统]