基于GPS的RTU对时分析  

GPS based analysis of clock synchronization on RTU

作　　者：张林[1] 储忠[2] 李秀娟[2] 

机构地区：[1]南京理工大学,江苏南京210094 [2]合肥学院,安徽合肥230022

出　　处：《电力系统通信》2004年第6期24-26,34,共4页Telecommunications for Electric Power System

基　　金：安徽省教育厅自然科学基金资助项目(2003kj284)

摘　　要：调度监控系统要准确了解、判断、管理和指挥电网的运行,必须要有一个统一时钟。文中论述了RTU对时间同步精度的要求,并在分析影响RTU对时精度原因的基础上,提出了利用GPS来提高RTU对时精度,该方法具有授时精度高并能有效地进行电网相量异地同步测量等优点。The running status changes very fast in electric power network.The dispatch system needs an accurate understand,judgment,management and instruction for running of electric power network.So there must be a unified clock in dispatch system,and RTU requires a real time synchronization mechanism.The article analyzes some effects that affect accuracy of clock synchronization on RTU,then introduces a way to improve accuracy of it,and describes the advantages such as synchronous phase paramenters measurement on power network in different places using GPS and high accuracy of clock synchronization.

关 键 词：远程终端设备(RTU) 全球定位系统(GPS) 相量测量 

分 类 号：TN919.34[电子电信—通信与信息系统]