摘要
对一起由合并单元采样失步引发的备自投装置异常闭锁进行了研究分析。在网采网跳模式的备自投装置中,间隔采样不同步,导致备自投装置告警,且频率愈发增大,直至闭锁。通过对网络报文分析仪的报文和时间同步系统对时方式的分析,得出结论,备自投闭锁是由采样失步所造成的。
It focuses on the analysis of a blocking of spare power automatic switching owing to sampling asynchrony in merging unit.Under the mode of network sampling network trip,sampling asynchrony in merging unit leads to the alarm of spare power automatic switching,and finally blocked as the frequency increased.Based on the analysis of the messages of network message recording analyzer and the synchronization mode of GPS,it is concluded that the exceptional situation is caused by the sampling asynchrony.
作者
邹高凯
蔡玉朋
李立刚
王小泽
苏欣然
ZOU Gaokai;CAI Yupeng;LI Ligang;WANG Xiaoze;SU Xinran(State Grid Chaoyang Power Supply Company,Chaoyang,Liaoning 122000,China;Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China;State Grid Shenyang Power Supply Company,Shenyang,Liaoning 110052,China;UHV Branch of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110003,China)
出处
《东北电力技术》
2023年第7期27-29,共3页
Northeast Electric Power Technology
关键词
网采网跳
备自投
采样失步
network sampling network trip
spare power automatic switching
sampling asynchrony
