输电线路发生单相接地短路后采样周期对测距精度的影响
Influence of Sampling Period on the Accuracy of Single Phase to Ground Fault in Transmission Line
作者: 孟祥飞 * , 孙懿君 , 郝洪民 , 王 建 ：山东理工大学电气与电子工程学院，山东 淄博;
关键词: 输电线路； 仿真建模； 故障测距； 实例分析； Transmission Line； Simulation Modeling； Fault Location； Case Study
摘要:Abstract: We analyze the basic principle of power frequency fault location of single-phase to ground fault in three-phase system of transmission line and use PSCAD/EMTDC simulation software to build the transmission line distributed parameter model. According to the transmission line single-phase grounding short circuit fault simulation, we use the Fourier algorithm to extract cycles of failure and calculate the voltage and current of power frequency to fault location, which is based on power frequency component of single end fault distance measurement principle. And current power frequency is analyzed by using the Fourier algorithm. Based on the real time fault data collected by the recorder in the single phase to ground fault in the small sand 110 KV large Xiapu Fujian wind line, the influence of the sampling period on the ranging results is verified. It can be used for referencing in the selection of sampling period when using power frequency to carry out fault lo-cation.
文章引用: 孟祥飞 , 孙懿君 , 郝洪民 , 王 建 (2016) 输电线路发生单相接地短路后采样周期对测距精度的影响。 智能电网， 6， 47-55. doi: 10.12677/SG.2016.62006
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