摘要
提出了一种新的单端故障测距的方法,根据故障发生后的故障附加网络,利用单端故障电压电流计算沿线故障电压对距离的导数,然后再求其范数在线路上的分布,根据其分布特点确定故障点的位置,实现测距。仿真证明该新方法具有较高的准确度和稳定性。
A new way for fault location using derived information of one terminal is proposed in the paper. Based on distributed parameter line model, a fault line can not get the voltage profile along the line using single-ended data. Because the computed voltage at the point behind the fault point is not true, it is named as ＂fictitious voltage profile＂. The fault location algorithm is computing the fictitious fault voltage profile along the line using the single-ended data, and then, calculating the norm value of derivative of the fictitious fault voltage at each point to search the fault location. The simulation tests show that the new way has more accurate quality and higher stability.
出处
《继电器》
CSCD
北大核心
2006年第4期1-5,共5页
Relay
关键词
输电线路
单端测距
电压分布
ATP仿真
EHV transmission lines
single-ended fault location
voltage profile
ATP simulation
