基于5G通信的有源配电网线路差动保护实用化方案  

Practical Scheme of Line Differential Protection for Active Distribution Network Based on 5G Communication

作　　者：濮宏飞 吴通华 姚刚[1,2] 洪丰 郑小江 江源 PU Hongfei;WU Tonghua;YAO Gang;HONG Feng;ZHENG Xiaojiang;JIANG Yuan(NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China;College of Energy and Electrical Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市211106 [2]智能电网保护和运行控制国家重点实验室,江苏省南京市211106 [3]河海大学能源与电气学院,江苏省南京市210098

出　　处：《电力系统自动化》2022年第23期117-124,共8页Automation of Electric Power Systems

基　　金：国家电网公司科技项目(5108-202218280A-2-75-XG)

摘　　要：随着分布式电源的高比例接入,基于5G通信的配电网差动保护技术得到了广泛的关注和研究。针对5G通信中的数据同步及丢包误码问题,提出了基于动态时间弯曲算法的双/多端线路差动保护判据。提出了基于动态响应传输模式的5G流量控制技术,构造了基于5G通信的有源配电网线路差动保护实用化整体解决方案并研制了保护装置。仿真及测试结果均表明,所提差动保护方案具有较好的抗同步误差和抗数据丢包性能,计算量和存储量较小,5G流量消耗大幅减小。With the access of high proportion of distributed generation(DG),the differential protection technology of the distribution network based on 5G communication has received extensive attention and research.Aiming at the problems of data synchronization,packet loss and bit error in 5G communication,a double/multi-terminal line differential protection criterion based on the dynamic time warping algorithm is proposed.A 5G flow control technology based on the dynamic response transmission mode is proposed.The overall practical solution of line differential protection for the active distribution network based on 5G communication is constructed and the protection device is developed.The simulation and test results show that the proposed differential protection scheme has better performance against synchronization error and data packet loss,less computation and storage,and can greatly reduce 5G flow consumption.

关 键 词：有源配电网 线路差动保护 T接线路 动态时间弯曲算法 5G通信 流量控制 

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]