摘要
5G承载差动保护业务是通信与控制保护技术融合发展的需求。通过对比分析不同对时原理差动保护的通道需求,比较高低压网络差动保护通道延时的需求差异,分析了5G无线通信中确定性传输时延技术和精准授时技术的可行性,提出了基于5G精准时标的配网差动技术。外场5G基站实测验证了授时精度及传输延时均能满足差动保护业务需求。
5G carrying differential protection service is requirement for the integration and development of communication and protection technologies.This paper analyzes the channel requirements of differential protection with different timing principles,and compares the difference in the delay requirements of differential protection channels in high and low voltage networks.The feasibility of deterministic transmission delay technology and precise timing technology in 5G wireless communication is also analyzed.Differential technology based on 5G accurate time stamp is proposed.The field test of 5G base station verifies that the timing accuracy and transmission delay can meet the requirements of differential protection services.
作者
余江
黄河
陈宏山
丁晓兵
YU Jiang;HUANG He;CHEN Hongshan;DING Xiaobing(Dispatching Center of China Southern Power Grid,Guangzhou 510530,China)
出处
《电力系统保护与控制》
CSCD
北大核心
2021年第7期10-16,共7页
Power System Protection and Control
基金
国家重点研发计划资助“融合5G的数字电网高安全高可靠通信技术研究与应用”(2020YFB0906003)
南方电网公司重点科技项目资助“融合5G的智能电网端到端关键技术研究、系统研制与示范验证项目(适配5G的配电网分布式差动保护关键技术研究及设备研制)”(000000KK52190172)。
关键词
5G
精准时标
差动保护
同步技术
传输延时
5G
precise time stamp
differential protection
synchronization technology
transmission delay
