基于5G通信技术的配电网线路纵差保护研究及应用

Research and Application of Longitudinal Differential Protection of Distribution Network Based on SG Communication Technology

摘要:

随着5G技术的兴起及组网共建共享的深入,电力业务应用对网络延时、带宽、可靠性等指标提出更高需求,5G+业务建设步入快车道。分析了5G配电网线路纵差原理,提出了系统架构、通信组网及调试方案。在试验室环境下,对双套纵差保护装置进行通信系统搭建、参数配置、联机调试,并以10 k V配电网线路为应用实例,新建室内分布式系统以满足5G网络通信要求,横向对比两种不同的5G组网方式。测试结果表明,独立组网方式要优于非独立组网网络,超低网络通道延时,超高网络带宽,可满足5G纵差通道应用条件,整体方案的实施及应用对今后智能分布式配电保护、自愈控制系统的建设有着借鉴作用。

Abstract:

With the rise of 5G technology and the deepening of network co-construction and sharing,power business applications have put forward higher demands on network delay,bandwidth,reliability and other indicators,and 5G + business construction has entered the fast lane. The principle of the longitudinal difference of 5G distribution network is analyzed,and a system architecture,communication networking and commissioning plan are proposed. In the laboratory environment,the communication system construction,parameter configuration and online commissioning of double longitudinal difference protection device are carried out,and taking 10 k V distribution network line for application example,a new indoor distributed system is built to meet the requirements of 5G network communication,and two different 5G networking methods are horizontally compared. The test results show that SA networking method is superior to NAS network and is ultra-low. The network channel delay and ultra-high network bandwidth can meet the application conditions of 5G longitudinal differential channels. The implementation and application of the overall plan can be used as a reference for the construction of intelligent distributed power distribution protection and self-healing control systems in the future.