考虑通信流量控制的配电网线路5G差动保护方案  

A 5G-enabled scheme for differential protection of distribution lines considering data flow control

作　　者：薛明军[1,2] 徐胜 邹磊 张灏[1,2] 李进 张涛[1,2] XUE Mingjun;XU Sheng;ZOU Lei;ZHANG Hao;LI Jin;ZHANG Tao(Guodian Nanjing Automation Co.,Ltd.,Nanjing 211100,China;Nanjing SAC Automation Co.,Ltd.,Nanjing 211153,China)

机构地区：[1]国电南京自动化股份有限公司,南京211100 [2]南京国电南自电网自动化有限公司,南京211153

出　　处：《浙江电力》2024年第7期29-36,共8页Zhejiang Electric Power

基　　金：国家自然科学基金国际合作与交流项目(52061635105)。

摘　　要：针对5G通道承载配电网线路差动保护业务时数据流量大的问题,提出了考虑通信流量控制的配电网线路5G差动保护方案。从差动数据的发送频率、报文内容和报文类型入手,优化发送策略、简化数据格式、提高报文效率,并在此基础上优化差动保护数据同步方案和CT(电流互感器)饱和判别逻辑,大幅降低了数据流量,且不影响差动保护的性能,同时仍具备通道监视的功能。最后通过实验验证了该方案具备工程应用推广价值,为5G通信技术承载配电网差动保护业务的实用化提供了借鉴。To address the issue of large data flow of 5G channel for differential protection of distribution lines,a 5Gbased scheme for differential protection for distribution lines considering data flow control is proposed.This scheme optimizes transmission strategy,streamlines data formats,and boosts message efficiency by focusing on the trans⁃mission frequency,message content,and message types of differential protection data.Furthermore,it enhances the data synchronization scheme for differential protection and refines the logic for saturation discrimination of cur⁃rent transformer(CT),significantly reducing data flow without compromising the performance of differential protec⁃tion.Through experiments,the scheme’s viability for practical applications has been confirmed,offering valuable insights for the real-world deployment of 5G-enabled differential protection for distribution networks.

关 键 词：5G通信 流量 差动保护 保护装置 配电网 

分 类 号：TM773[电气工程—电力系统及自动化] TN929.5[电子电信—通信与信息系统]