电力系统自动化2017，Vol.41Issue(14)：202-207,6.DOI:10.7500/AEPS20161103002
卫星时钟与网络时钟互备的广域时间同步方法
Wide-area Time Synchronization Method for Mutual Preparation of Satellite Clock and Network Clock
摘要
Abstract
In order to meet the demand of wide area time synchronization for the rapid development of smart grid,a new wide-area time synchronization method is proposed,in which satellite clock and network clock are mutually spare.Based on an analysis of the error characteristics of satellite clock,crystal clock and network clock,the high precision synchronous clock timing method combined with satellite clock and crystal clock is studied,and a message path delay improvement algorithm featuring IEEE 1588 protocol network dock is proposed.On this basis,a distributed autonomous wide-area time synchronization scheme focused on high-precision synchronous clock and network clock is put forward.The simulation results show that the wide-area time synchronization scheme can realize accurate and reliable time synchronization of the time nodes in the wide area network while meeting the time synchronization requirement of the smart grid.关键词
时间同步/卫星时钟/晶振时钟/网络时钟/广域电网Key words
time synchronization/satellite clock/crystal oscillator clock/network clock/wide-area power grid引用本文复制引用
赵廷,李泽文,邹彬,贺子凝,任申..卫星时钟与网络时钟互备的广域时间同步方法[J].电力系统自动化,2017,41(14):202-207,6.基金项目
国家自然科学基金资助项目(51577013) （51577013）
湖南省自然科学杰出青年基金资助项目(2015JJ1001).本文得到电网安全监控技术教育部工程研究中心开放基金项目资助,谨此致谢！This work is supported by National Natural Science Foundation of China (No.51577013) and Hunan Provincial Natural Science Foundation for Distinguished Young Scholars (No.2015JJ1001). （2015JJ1001）
