Distribution network line fault section positioning method based on full-waveform information
一种线路故障、区段定位的技术,应用在故障位置、按导体类型探测故障、短路测试等方向,能够解决特征量获取困难、增大系统干扰、信号精确同步困难等问题
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[0057] The fault waveform required by the present invention comes from the distributed fault section positioning system, and the system architecture is as follows figure 1 shown. The distribution network fault section location system consists of a monitoring master station, a substation (busbar) measurement device, and node fault location devices distributed throughout the distribution line. The fault location node divides the line into several sections topologically, and each node installs three sets of measuring devices to collect the three-phase current and voltage of the line synchronously in real time.
[0058] According to the fault location method invented, different types of faults are set in the 10kV distribution network simulation system. The system structure diagram is as follows figure 2 As shown, the busbar has three outgoing lines, 1, 2, and 3 are line numbers, ①, ②, ③ are section numbers, Roman numerals are detection point numbers, and faults are set on secti...
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