电力系统自动化2013，Vol.37Issue(3)：104-109,6.DOI:10.7500/AEPS201107276
基于行波固有频率的高压直流输电线路故障定位
Fault Location of HVDC Transmission Line Based on the Natural Frequency of Traveling Wave
摘要
Abstract
A new fault location method is proposed using single-end traveling wave frequency information for high voltage direct current (HVDC) transmission lines. Different from the traditional partial differential equations based methods, the proposed method is based on the traveling wave's natural frequency. The transient signals are analyzed to extract the natural frequencies using multiple signal classification (MUSIC) after the fault occurred at the line. The fault distance can be calculated with the relationship among the fault distance, the dominant natural frequency and the terminal conditions of transmission line. A simulation model of 800 kV ultra high voltage direct current (UHVDC) transmission system is built in PSCAD/EMTDC. Various transmission line fault situations are considered to locate the fault point with different transition resistance. The results confirm that the proposed method is feasible and accurate.关键词
高压直流输电/单端电压暂态量/行波固有频率/故障定位Key words
high voltage direct current (HVDC)/ single-end transient voltage value/ traveling wave natural frequency/ fault location引用本文复制引用
廖凯,何正友,李小鹏..基于行波固有频率的高压直流输电线路故障定位[J].电力系统自动化,2013,37(3):104-109,6.基金项目
高等学校博士学科点专项科研基金资助项目(20080613004) （20080613004）
中央高校基本科研业务费专项资金资助项目(SWJTU11ZT07). （SWJTU11ZT07）
