一种电网短路故障快速隔离方法  

A Rapid Isolation Method of Short-Circuit Fault in The Power Grids

作　　者：徐斐[1] 马振亮[2] 徐新民[2] 

机构地区：[1]浙江大学城市学院信息与电气工程学院,杭州310015 [2]浙江大学信息与电子工程学系,杭州310027

出　　处：《科技通报》2012年第9期204-207,共4页Bulletin of Science and Technology

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.

关 键 词：智能电网 短路 故障隔离 

分 类 号：TM764[电气工程—电力系统及自动化] TM769