Research on High Precision Time Information Transmission Method

2012 ◽  
Vol 468-471 ◽  
pp. 3072-3075
Author(s):  
Guo Ping Zhou ◽  
Ji Cheng Zhang

Time synchronization system has been widely used in power system. According to the needs of different system, it provides different signals. Usually you can use a GPS clock pulse, serial message, IRIG-B yards and so on. B code contains both plus and serial time message .And the traditional equipment is often used pulse and serial message at the same time. We put forward a method to transmit pulse information and serial message information on a transmission line .And at receiving place, it can restore the signals. It can reduce line costs and outside interferences, is beneficial to the optimization of system.

2015 ◽  
Vol 1092-1093 ◽  
pp. 332-336
Author(s):  
Hong Zhang Xiong ◽  
Xi Chen ◽  
Ling Teng ◽  
Qiang Gao ◽  
Yang Wang

Development of intelligent grid have increasing demands for time synchronization, high precision, large scale, high performance time synchronization system has become necessary guarantee for the normal operation of the power grid. This article introduced the composition of the time synchronization system, discusses the IEEE1588 implementation of high precision clock synchronization principle and SDH data transmission principle, analysis of the PTP protocol for transmission through the principle of the SDH E1 line, gives the networking scheme of PTP over the E1 way, which meet the precision requirement of 1 us.


2019 ◽  
Vol 46 (11) ◽  
pp. 1101011
Author(s):  
朱浩瀚 Zhu Haohan ◽  
汪小超 Wang Xiaochao ◽  
黄文发 Huang Wenfa ◽  
肖助力 Xiao Zhuli ◽  
姜秀青 Jiang Xiuqing ◽  
...  

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