| 网络时间协议在电力监控系统时钟同步中的应用 |
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| 引用本文： | 冉懋海,陈小川,徐毅. 网络时间协议在电力监控系统时钟同步中的应用[J]. 电力系统通信, 2006, 27(1): 29-32 |
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| 作者姓名： | 冉懋海 陈小川 徐毅 |
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| 作者单位： | 1. 西南交通大学电气工程学院,四川,成都,610031
2. 重庆市电信局数据通信中心,重庆,400042 |
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| 摘 要： | 电力监测系统是一个复杂的分布式系统,对时钟同步精度有着不同层次的需求。文章在介绍实现时钟同步的3种机制(硬时钟同步、软时钟同步、混合时钟同步)以及网络时间协议(NTP)原理的前提下,针对电力监控系统的特点,给出了一个结合GPS授时和NTP对时的分层混合时钟同步方案,并指出了今后改进的方向。
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| 关 键 词： | 时钟同步 网络时间协议 交换式以太网 传输延迟 |
| 文章编号： | 1005-7641(2006)01-0029-04 |
| 收稿时间： | 2005-07-27 |
| 修稿时间： | 2005-09-26 |
Application of network time protocol in clock synchronization in power SCADA system |
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| RAN Mao-hai,CHEN Xiao-chuan,XU Yi. Application of network time protocol in clock synchronization in power SCADA system[J]. Telecommunications for Electric Power System, 2006, 27(1): 29-32 |
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| Authors: | RAN Mao-hai CHEN Xiao-chuan XU Yi |
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| Affiliation: | 1. School of Electric Engineering Southwest Jiaotong University, Chengdu 610031, China; 2. Data Traffic Center Chongqing Telecom ,Chongqing 400042 ,China |
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| Abstract: | The electric power monitoring system is a complex distributing system,and there is different demand on clock synchronization precision in different levels.Based on the realization mechanisms introduction of three kinds of clock synchronization(hard clock synchronization,soft clock synchronization and mixing clock synchronization) and Network Time Protocol(NTP),according to the traits of power SCADA system,a delaminated-mixed-synchronization scheme of combining GPS and NTP is presented,and the direction of amelioration is pointed out. |
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| Keywords: | clock synchronization Network Time Protocol(NTP) switched Ethernet transmission delay |
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