基于5G及IEC61850的韧性配网故障信息智能传输技术研究  

Intelligent transmission technology of fault information in a resilient distribution network based on 5G and IEC61850

作　　者：孙阳盛 涂崎 赵中华[2] 黄震宇 赵永森 李坤[3] SUN Yangsheng;TU Qi;ZHAO Zhonghua;HUANG Zhenyu;ZHAO Yongsen;LI Kun(State Grid Shanghai Electric Power Company,Shanghai 200122,China;Dongfang Electronics Co.,Ltd.,Yantai 264000,China;Shandong University,Jinan 250061,China)

机构地区：[1]国网上海市电力公司,上海200122 [2]东方电子股份有限公司,山东烟台264000 [3]山东大学,山东济南250061

出　　处：《电力系统保护与控制》2022年第21期108-117,共10页Power System Protection and Control

基　　金：国家自然科学基金面上项目资助(51677108);上海市电力公司科技项目资助(520900200082)。

摘　　要：现有城市配电网,尤其是在负荷密集区域,具有大量的10 kV开关站。但是现有配电网系统缺乏对10 kV开关站设备的有效监管能力,严重阻碍城市韧性配电网的建设。为此,提出了基于5G及IEC61850的韧性配网故障信息智能传输技术方案。该方案通过基于态势感知的保护设备自动发现识别技术自动识别感知开关站内网络变化。通过基于IEC61850通信的二次设备自动配置接入技术自动发现并配置保护装置。通过基于IEC61850的面向对象的立体数据模型到扁平化数据模型的免配置转换技术快速准确地实现电网保护故障信息主站与子站之间的信息转换与共享。通过基于5G网络的高速实时业务传输技术实现信息的高速、实时、可靠传输。搭建系统测试环境对该技术方案进行测试并在试点站进行试运行。结果表明该技术方案能够按需及时获取设备实时运行状态和重要动作信息,实现了对10 kV开关站的有效监管。The existing urban distribution network,especially in load-intensive areas,has a large number of 10 kV switching stations.However,the existing distribution network system lacks the effective supervision ability for 10 kV switching station equipment,and this seriously hinders the construction of a resilient urban distribution network.Therefore this paper proposes an intelligent transmission technology scheme for the fault information of a ductile distribution network based on 5G and IEC61850.In this scheme,the network changes in the sensing switch station are automatically identified by the automatic discovery and identification technology of protection equipment based on situational awareness.The protection device is automatically discovered and configured by the automatic configuration and access technology of secondary equipment based on IEC61850 communication.The information conversion and sharing between the master and slave stations of the power grid protection fault information are quickly and accurately realized by the configuration-free conversion technology from the object-oriented stereo data model based on IEC61850 to the flat data model.High-speed,real-time and reliable transmission of information is realized by the technology based on the 5G network.A system test environment is built to test the technical scheme and run it at the test station.The results show that the technical scheme can obtain real-time operational status in a timely fashion and important action information of the equipment on demand,and realize the effective supervision of 10 kV switching stations.

关 键 词：5G IEC61850 免配置 态势感知 动态初始化 数据转换 

分 类 号：TM73[电气工程—电力系统及自动化]