隔离开关二次回路故障快速定位装置的研制Development of Fast Fault Location Device for Secondary Circuit of Disconnector
高挺,常俊晓,陈音璇,鲍宇,周威铮
GAO Ting,CHANG Junxiao,CHEN Yinxuan,BAO Yu,ZHOU Weizheng
摘要(Abstract)：
隔离开关是变电站内重要的高压一次设备,其二次回路发生故障将导致不能正常分、合闸操作,降低了电网供电可靠性。针对目前电力系统中因无法直接精准判断隔离开关二次回路故障位置而导致故障处理时间延长的问题,基于二次回路节点电压比较的思路,提出了用于快速定位隔离开关二次回路故障的方法和装置,采集各点的实际电压,并与该点标准电压进行对比,结合隔离开关的操作动作过程,快速判断故障位置。现场实际应用结果表明,该装置能够快速定位二次回路的故障位置,缩短故障处理时间,有效保障电网供电可靠性。
Disconnector is an important high-voltage primary device in the substation, the failure of the second circuit may fail normal opening and reclosing operation and therefore decreases grid reliability. The current power system operators can not directly and accurately determine the fault location of the secondary circuit of the disconnector, which prolongs the breakdown processing time. Based on the secondary circuit node voltage comparison, the paper presents a method and device for quick fault location of secondary circuit of disconnector to collect the actual voltage at each node and compare it with the nominal voltage and quickly locate the fault based on operation action process of the disconnector. The field application shows that the device can locate the fault position of secondary circuit quickly, shorten troubleshooting time, and ensure supply reliability of power grid.
关键词(KeyWords)：
隔离开关;二次回路故障;故障快速定位;节点电压比较
disconnector;secondary circuit fault;fast fault location;node voltage comparison
基金项目(Foundation):
作者(Author):
高挺,常俊晓,陈音璇,鲍宇,周威铮
GAO Ting,CHANG Junxiao,CHEN Yinxuan,BAO Yu,ZHOU Weizheng
DOI: 10.19585/j.zjdl.202003007
参考文献(References)：
- [1]夏澍，徐英成，王思麒，等.变电站电能表二次回路故障辨识方法[J].电测与仪表，2017,54(11):99-105.
- [2]李远，李虹，罗建平，等.智能变电站二次回路在线监测与故障定位方法的研究与实现[J].电气技术，2019,20(9):78-82.
- [3]ZHANG S.Research,development and application of the training device for trouble shooting of secondary circuit of operating mechanism[C]//International Informatization and Engineering Associations、Atlantis Press.Proceedings of2015 4th International Conference on Mechatronics,Materials,Chemistry and Computer Engineering(ICMMCCE2015),2015:1753-1756.
- [4]郭学才.500 kV变电站隔离开关操作暂态过电压对二次回路的影响研究[D].广州：华南理工大学，2013.
- [5]张瑞，吴宗熙，马军.高压电网隔离开关二次回路探讨[J].广东科技，2011,20(20):124-125.
- [6]戴宇.电力系统二次回路状态检修[D].广州：华南理工大学，2013.
- [7]邱舒峰.LW25-126型断路器二次回路现场应用问题分析及改进[J].技术与市场，2019,26(11):26-27.
- [8]钟臻，徐曦，张楷旋.基于优化神经网络算法的大数据专家系统的继电保护二次回路故障定位系统（RSFLS）的研究与实现[J].电力大数据，2019,22(10):84-92.
- [9]JIANG K,SINGH C A.New models and concepts for power system reliability evaluation including protection system failures[J].IEEE Transactions on Power Systems.2011,2(4):1845-1855.
- [10]YU C S,LIU C W,YU S L,et al.A new PMU-based fault location algorithm for series compensated lines[J].IEEE Transactions on Power Delivery.2002,17(1):33-46.
- [11]张涛.隔离开关机构二次回路的完善[J].宁夏电力，2008(6):33-34.
- [12]张宏斌，黄颖祺，张蕾，等.电力系统智能报警的二次回路信号建模与应用[J].华东电力，2014,42(3):550-553.
- [13]黄大玮，李飞.TV二次回路两点接地故障的排查方法[J].陕西电力，2011,39(10):57-59.
- [14]卢伟.二次回路多点接地故障定位研究与应用[J].通讯世界，2015(18):106-107.
- [15]杨鹏.变电站继电保护二次回路的在线监测及故障分析[J].电子测试，2019(6):87-88.
- [16]白瑞.电压互感器二次回路氧化锌阀片状态监测方法探讨[J].山西电力，2018(2):8-11.