摘要
5G通信的出现为配电网差动保护数据传输提供了新的思路,但其传输时延抖动较大,影响数据同步甚至是保护控制功能的实现。对此,提出了一种不依赖于时标信息与固定时延计算、可以消除时延抖动影响的数据同步方法。该方法基于构建的配电网模型以及获取的差动保护两侧数据信息计算得到传输时延,从而进行插值获得同步序列,以序列号同步作为配电网中差动保护两侧数据同步的方式。试验结果表明,该方法可以有效实现配电网5G通信传输下的数据同步。
The emergence of 5 G communication provides a new idea for differential protection data transmission in distribution network,but it has a large transmission delay jitter and affects data synchronization and even the realization of protection control functions.A data synchronization method that does not rely on timestamp information and fixed delay calculations and can eliminate the influence of delay jitter is proposed.Based on the constructed distribution network model and the data information obtained on both sides of the differential protection,the transmission delay time can be calculated,so that the synchronization sequence is obtained by interpolation,and the serial number synchronization is used as the data synchronization method on both sides of the differential protection in the distribution network.The test result shows that the method can achieve data synchronization in 5 G communication transmission in distribution networks.
作者
陈从靖
霍银龙
岳峰
张尧
CHEN Congjing;HUO Yinlong;YUE Feng;ZHANG Yao(Nanjing SAC Power Grid Automation Company Limited,Nanjing 211153,China)
出处
《浙江电力》
2021年第2期68-72,共5页
Zhejiang Electric Power
基金
华电集团科技项目(CHDKJ11-01-16)。
关键词
5G通信
配电网
差动保护
时延抖动
数据同步
5G communication
distribution network
differential protection
delay jitter
data synchronization
