摘要
无源光网络是一种纯介质网络,其业务透明性好、网络拓扑灵活、传输距离长、成本较低。电网时间统一系统的"最后一千米"是时间配送系统。针对变电站用户对时间配送系统精确性、稳定性的需求,研究基于无源光网络配送时间的技术,解决高精度时间和频率在变电站中配送的问题。
The passive optical network is a pure media network.It has many advantages such as transparent services, flexible network topology,longer transmission distances and lower costs.It plays an important role in the last mile of timing system of power grid.In order to meet the requirement on precision and stability of substation users,this paper discusses the technology of time distribution based on passive optical network which can solve the problems of highprecision time and frequency distribution in substations.
出处
《电力系统通信》
2011年第1期33-36,共4页
Telecommunications for Electric Power System
关键词
变电站
无源光网络
时间统一系统
高精度时间配送
Passive optical network
Timing system
Distribution of high-precision time signals
