5G用作配电网差动保护通道的可行性分析  

Feasibility analysis of adopting 5G in differential protection of distribution networks

作　　者：高维良 高厚磊[1] 徐彬[1] 李林[1] GAO Weiliang;GAO Houlei;XU Bin;LI Lin(Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education,Shandong University,Jinan 250061,China)

机构地区：[1]电网智能化调度与控制教育部重点实验室(山东大学),山东济南250061

出　　处：《电力系统保护与控制》2021年第8期1-7,共7页Power System Protection and Control

基　　金：国家自然科学基金项目资助(51877127);山东省电力公司科技项目资助(5206011900DG);国网总部科技项目资助(5100-202055018A-0-0-00)。

摘　　要：光纤铺设费用高且普及率较低,不利于配网差动保护的大面积推广。5G的高性能和商用化为解决配网差动保护通道问题提供了理想机遇。通过理论分析和计算,提出差动保护对于通信通道的要求,包括通道速率、时延、可靠性以及安全性等方面。介绍并分析了5G差动保护实现的技术基础——网络切片、切片架构以及基于网络切片的电网安全体系。最后,通过分析5G的主要性能指标,得出5G对于配电网差动保护具有良好的适配性,可以取代光纤成为配网差动保护新的数据通道。Fiber laying costs are high and its popularity is low.These factors limit the large-scale promotion of differential protection in distribution networks.The high performance and commercialization of 5G provides a rare chance for solving the above channel problem.Through theoretical analysis and calculation,the requirements for a communication channel of differential protection are presented,including rate,delay,reliability and security of the channel.Then,the technical basis for 5G-based differential protection is introduced and analyzed.This mainly discusses network slice,slice architecture,and the security system when used for the power grid.Finally,through analyzing the main performance index of 5G,it can be concluded that 5G has good adaptability to differential protection of a distribution network,and can replace optical fiber to become a new communication channel.

关 键 词：配电网 差动保护 5G 通道 可行性 

分 类 号：TN929.5[电子电信—通信与信息系统] TM773[电子电信—信息与通信工程]