| 星地多源授时和PTP网络精确对时的关键技术研究和应用 |
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| 引用本文： | 潘勇伟,岑宗浩,李万林,邱智勇,沈冰.星地多源授时和PTP网络精确对时的关键技术研究和应用[J].华东电力,2010(7). |
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| 作者姓名： | 潘勇伟 岑宗浩 李万林 邱智勇 沈冰 |
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| 作者单位： | 华东电网有限公司;国家电网公司电科院;华东电力试验研究院有限公司; |
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| 摘 要： | 500 kV智能变电站主要实现一次设备数字化化、二次设备智能化、测控数传网络化、系统授时多源化。介绍了华东电网500kV玉山智能变电站采用北斗和GPS卫星、铯原子时钟经SDH光通道的多源授时技术,开发支持IEEE1588-2008网络测控系统的精确时钟同步协议(以下简称精确对时协议或PTP)主时钟模块,融入智能化变电站统一的同步时钟系统,实现光纤互感器合并单元(MU)、PTP网络交换机、智能测控单元、智能保护装置、智能操作箱等网络精确时间同步。通过试验检测和数据分析,为智能变电站推广星地多源授时和网络精确对时的统一时钟同步系统积累实践经验。
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| 关 键 词： | 智能变电站 星地多源授时 网络精确对时协议(PTP) 统一时钟同步系统 |
Investigation and Application of Key Technologies in Satellite-ground Multi-source Time Service and PTP Network Precise Time |
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| PAN Yong-wei,CEN Zong-hao,LI Wan-lin,QIU ZHi-yong,SHEN Bing.Investigation and Application of Key Technologies in Satellite-ground Multi-source Time Service and PTP Network Precise Time[J].East China Electric Power,2010(7). |
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| Authors: | PAN Yong-wei CEN Zong-hao LI Wan-lin QIU ZHi-yong SHEN Bing |
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| Affiliation: | PAN Yong-wei1,CEN Zong-hao1,LI Wan-lin2,QIU ZHi-yong1,SHEN Bing3(1.East China Grid Co.,Ltd.,Shanghai 200002,China,2.State Grid Electric Power Research Institute,Nanjing 210003,3.East China Electric Power Test & Research Institute Co.,Shanghai 200437,China) |
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| Abstract: | Intelligent substation mainly realizes the digitalization of the primary devices,intellectualization of the secondary devices,network of the measurement and control data transportation and the multi-source of the time service in subsystem.The multi-source time technology of applying Compass and GPS satellites and cesium atomic clock based on SDH optical channel in 500 kV Yushan intelligent substation of East China Power Grid was described.The master clock module of the precision time protocol(PTP) to suppor... |
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| Keywords: | intelligent substation satellite-ground multi-source time service network precision time protocol(PTP) uniform clock synchronization system |
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