一种GIS故障快速定位方法A New Method of Rapid GIS Fault Location
王一,黄超,顾水平,吴建伟
WANG Yi,HUANG Chao,GU Shuiping,WU Jianwei
摘要(Abstract)：
GIS因其诸多优点近年来获得了广泛应用,与此同时,GIS发生故障时,故障点的查找、隔离及电网恢复都比敞开式设备复杂。通过分析GIS故障时的保护动作行为以及母线故障零序电流的分布特点,提出了一种GIS故障快速定位方法,该方法采集信息少、分析简便。通过2起GIS母线故障案例验证了该方法的有效性,发现通过该方法,可缩小故障查找范围,尽快恢复系统安全稳定运行。
Due to its advantages, GIS(gas insulated switchgear) has been widely used in recent years. Meantime fault point location, separation of GIS and power grid restoration are more complicated than that of open type devices in the case of faults. By analysis on the behavior of protection action and distribution characteristics of zero-sequence fault bus current, a rapid GIS fault location method is proposed, which collects less information and is simple and easy for analysis. Through two examples of bus faults, the method is proved effective; besides, the method can narrow fault detection range and restore operation safety and stability of the system as quickly as possible.
关键词(KeyWords)：
GIS;故障定位;母线故障;零序电流
GIS;fault location;bus fault;zero-sequence current
基金项目(Foundation):
作者(Author):
王一,黄超,顾水平,吴建伟
WANG Yi,HUANG Chao,GU Shuiping,WU Jianwei
DOI: 10.19585/j.zjdl.2017.02.011
参考文献(References)：
- [1]罗学琛.SF6气体绝缘全封闭组合电器(GIS)[M].北京:中国电力出版社,1999.
- [2]崔杨柳,马宏忠,王涛云,等.基于故障树理论的GIS故障分析[J].高压电器,2015,51(7):125-129.
- [3]李乃永,张辉,苏欣,等.气体绝缘全封闭组合电器母线跳闸快速恢复方案[J].电力系统自动化,2015,39(22):170-175.
- [4]李乃永,张美玲,王昕,等.实现GIS故障精准辨识切除及自动恢复供电的母线保护新原理[J].电网技术,2015,39(10):2965-2971.
- [5]赵晓明,余志慧.通过保护动作电流定位1 000 kV GIS故障点的实例分析[J].浙江电力,2014,33(9):6-9.
- [6]姜炯挺,邵先军,周建平,等.一起GIS支柱绝缘子内部击穿故障的定位与分析[J].浙江电力,2015,34(8):4-8.
- [7]李秀广,郭荣坤,马波,等.一起110 kV变电站GIS绝缘子故障定位分析[J].电气技术,2016(12):162-166.
- [8]张浩,吴凯,管敏渊,等.一起GIS设备SF6气体泄漏故障的分析与处理[J].浙江电力,2016,35(9):35-38.