Proposition of an interharmonic-based methodology for high-impedance fault detection in distribution systems
Proposition of an interharmonic-based methodology for high-impedance fault detection in distribution systems
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DOI：
10.1049/iet-gtd.2015.0407
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发表时间：
2015-11
影响因子：
2.5
通讯作者：
J. R. Macedo;José Wilson Resende;C. Bissochi;D. P. Carvalho;F. Castro
中科院分区：
文献类型：
--
作者：
J. R. Macedo;José Wilson Resende;C. Bissochi;D. P. Carvalho;F. Castro
本文介绍了一种基于间谐波特征的配电网高阻抗故障检测新方法的初步结果。该方法包括将间谐波电流分析系统纳入常规保护系统，如自动重合闸和分段器。为了验证所提出的方法的功能性，作者在不同类型的土壤上进行了现场测试，包括在故障发生期间的瞬时电流波形测量。结果表明，基于高阻抗故障发生过程中弧长变化产生的间谐波电流的方法在检测扰动方面具有很大的应用前景。
This study presents the preliminary results of a new methodology for detecting high-impedance faults in distribution systems based on interharmonic signatures. The methodology involves incorporation of an interharmonic current analysis system into a conventional protection system, such as automatic reclosers and sectionalisers. To check the functionality of the proposed methodology, the authors carried out field tests on different types of soil, involving instantaneous current waveform measurements during the occurrence of faults. The results suggest that the methodology, based on interharmonic currents produced by variations in electric arc length during the occurrence of high-impedance faults, shows great promise when it comes to detection of the disturbance.