自动化与信息工程2023，Vol.44Issue(6)：22-28,7.DOI:10.3969/j.issn.1674-2605.2023.06.004
基于暂态信号的配电网单相接地故障区段自动定位方法
Automatic Positioning Method of Single-phase Ground Fault Section of Distribution Network Based on Transient Signal
摘要
Abstract
The existing methods for locating single-phase grounding faults in distribution networks are highly susceptible to the combined influence of disturbance factors and distance limitations of the positioning lines.In practical applications,the positioning results obtained deviate significantly from the actual fault location,and the positioning time cost is too high,seriously affecting the overall efficiency of normal fault removal and maintenance in distribution networks.In order to solve the problem of positioning deviation and shorten the fault location time,the transient signal of single-phase grounding fault in the distribution network is analyzed to obtain the transient signal of the fault area;Obtain the corresponding time-domain characteristics of transient signals in the fault section;Perform localization calculations on its faults.The data obtained through simulation and comparative experiments indicate that the proposed method can quickly and accurately locate the fault location,effectively improve the accuracy of fault location,and shorten the positioning time of fault location under the same length and distance.It has good stability and has the value of large-scale promotion and in-depth research.关键词
单相接地故障/暂态信号/配电网/自动定位Key words
single-phase ground fault/transient signal/distribution network/automatic positioning分类
信息技术与安全科学引用本文复制引用
黄灿英,杨墉金,宁珍..基于暂态信号的配电网单相接地故障区段自动定位方法[J].自动化与信息工程,2023,44(6):22-28,7.基金项目
江西省教育厅科学技术研究项目(GJJ215305) （GJJ215305）
