电力系统时间同步组网研究  

Study on time-synchronization networking of power system

作　　者：王玉东[1] 尤天晴[2] 

机构地区：[1]国网北京经济技术研究院,北京100761 [2]东北电力设计院,吉林长春130021

出　　处：《电力系统通信》2009年第7期64-67,共4页Telecommunications for Electric Power System

摘　　要：分析了电力系统变电站时间同步的现状及依赖GPS的风险性,比较了变电站各种应用系统对时精度要求及采用NTP/DCLS/PTP组网对各种应用系统时间精度要求的满足程度,提出了在各种技术均存在不足的情况下,电力系统时间同步组网应以扁平结构为主,DCLS组网作为紧急情况下备用的建议。The article introduces the present situation of time-synchronization networking in substations of power system, analyses the risk of GPS dependence, compares the time precision of different application systems in substations and the results of using NTP/DCLS/PTP networking. It suggests that the flat structure could be used as the main choice in timesynchronization networking and DCLS mode is used as the standby for emergency situation.

关 键 词：时间同步 NTP DCLS PTP 

分 类 号：TN915.9[电子电信—通信与信息系统]