STUDY ON FAULT LOCATION FOR TRANSMISSION LINES BASED ON THE SENSOR OF TRAVELING-WAVE
STUDY ON FAULT LOCATION FOR TRANSMISSION LINES BASED ON THE SENSOR OF TRAVELING-WAVE
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发表时间：
2002
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通讯作者：
Cheng De-shu
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作者：
Cheng De-shu
电容式电压互感器(CVT)二次侧输电线路中的电压行波信号难以准确检测，对高频信号的变换性能较差。本文设计了一种新型的电压行波检测传感器。它可以测量CVT到地面的电流行波。通过测量各站行波出现的起始时间，实现了一种新的全网故障定位系统。仿真和样机测试表明，该故障测距方法具有精度高、实现简单、成本低等优点。
The voltage traveling-wave in transmission line is difficult to be accurately detected in the secondary of capacitive voltage transformer (CVT) which has bad character to transform high frequency signals. A new sensor to detect the voltage traveling-wave is designed in this paper. It can measure the current traveling-wave from CVT to ground. The incipient times of traveling-wave appearing in every station are measured and a new fault location system for the whole grid is implemented. Simulations and prototype testing show that this fault location method has high precision and can be implemented easily and cheaply.