摘要
介绍了一种能够应用于配电网环网单元中的基于HSR通信的分布式母差保护技术。为了解决简易母线保护不能保护合环运行的复杂配网线路母线故障的问题,将HSR环网协议应用于单间隔保护装置及分布式母差保护装置,同时研究了基于传输延时修正域的电流同步方法及数字化电压并列方法,并进行了实际RTDS故障模拟试验,验证了整体方案的有效性和实用性。
Introduction was made to the distributed bus differential protection technology based on the HSR ring network,which could be applied in the ring network unit of distribution network.To solve the problem that the simple bus protection couldn't protect busbar faults of complex distribution network lines in the closed loop operation,the HSR ring network protocol was applied to the single-interval protection and distributed bus differential protection devices.At the same time,this paper studied on the current synchronization method based on the transmission delay correction domain and the digital voltage parallel method and carried out the RTDS simulation experiments.The results verify the effectiveness and practicability of the overall scheme.
作者
宋志伟
陈宏山
侯炜
董凯达
金震
SONG Zhi-wei;CHEN Hong-shan;HOU Wei;DONG Kai-da;JIN Zhen(NR Electric Co.,Ltd,Nanjing 211102,China;China Southern Power Grid Co.,Ltd,Guangzhou 510663,China)
出处
《电工电气》
2020年第2期18-22,34,共6页
Electrotechnics Electric
基金
南方电网公司科技项目(ZDKJXM20160007)
关键词
HSR环网
分布式母差
传输延时修正
差动电流同步
电压并列
HSR ring network
distributed bus differential protection
correction domain based on transmission delay
differential current synchronization
voltage parallel
