计算机与数字工程2017，Vol.45Issue(9)：1698-1702,1719,6.DOI:10.3969/j.issn.1672-9722.2017.09.003
面向特高压直流输电的单极接地故障定位
Single-pole Fault Locating for Ultra High Voltage DC Transmission
摘要
Abstract
This paper uses the time-domain Hilbert transform method,and presents a method to locate fault location of single pole fault in a special high-voltage dc transmission. The method utilizes the transition resistance as pure resistance,and the current of the fault point voltage and the injection transition resistance should have the characteristics of the equal phase. To calculate the transition resistance on the instantaneous phase of voltage,current,this paper uses the sinusoidal representation method based on time domain Hilbert transform processing fault line of synchronous sampling data measured at each end. On PSCAD/EMTDC simula?tion platform UHVDC transmission simulation with two ends model is built,and Matlab software is used to write ranging algorithm, the result shows this method can realize accurate positioning within the scope of UHVDC transmission across the board,and the re?quired sampling data window is short,smooth ranging results,ranging accuracy is not affected by transition resistance and fault lo?cation.关键词
直流输电/单极接地故障/故障定位/瞬时相位/时域希尔伯特变换Key words
DC transmission/single-pole fault/fault location/instantaneous phase/time domain Hilbert transform分类
信息技术与安全科学引用本文复制引用
王春梅,李皓然,王茜,李怡萌..面向特高压直流输电的单极接地故障定位[J].计算机与数字工程,2017,45(9):1698-1702,1719,6.基金项目
国家自然科学基金项目(编号:51607042)资助. （编号:51607042）
