摘要
针对目前电网中的短路故障需人工排查、效率低的现状,本文根据短路故障点前后电流特征的不同,提出了一种电网中短路故障的快速隔离方法,该方法主要利用故障点前后不同的电流特征,采用逻辑演算来实现。试验结果表明,该方法能在80 ms之内快速定位到短路故障的发生地点,切断故障点两端的配电开关,并对供电线路进行调度,以保障故障点外正常区域的恢复供电。
At present, short-circuit fault in the power grid needs to be checked out manually. Based on the different current characteristics between before and after the short-circuit point, use of logic and calculus,a new method to deal with short-circuit in the grid is proposed for greater efficiency. The results show that it can locate the place where short-circuit occurs within 80 milliseconds, and then turns off the switch at both sides of it. After that, it reschedules the power transmission line to ensure the power supply.
出处
《科技通报》
北大核心
2012年第9期204-207,共4页
Bulletin of Science and Technology
关键词
智能电网
短路
故障隔离
smart power grids
short-circuit
fauh isolation
