电力系统自动化2017，Vol.41Issue(10)：100-105,6.DOI:10.7500/AEPS20160718008
风电场并网输电线路单相接地故障单端测距方法
Accurate single terminal fault location algorithm for single-line-to-ground fault in transmission lines with wind farm connection
摘要
Abstract
The accurate single terminal fault location can be realized by using data of two time sections to set up equations to describe the constant transmission line topology between two-terminal circuit breakers, the time after fault and that after single-phase circuit breaker tripping. But this method assumes that the impedance of opposite terminal and fault resistance in fault branch are constant between two time sections, which is untenable at the system side in transmission lines with wind farm connection. For this problem, the idea of operating fault location at the wind farm side is proposed to overcome the problem of equivalent system impedance variation between two time-sections. And then a new fault location equations direct calculation algorithm is proposed to resolve the problem of low fault location accuracy in the case of high impedance faults, which is usually produced by the previously adopted iterative searching algorithm. Fault distance and transitional resistance can thus be directly obtained using the new algorithm while subsequent research on adaptive reclosing is provided with a new line of thought.关键词
输电线路/故障测距/单相跳闸/风电场/单相接地故障Key words
transmission line/fault location/single pole trip/wind farm/single line to ground fault引用本文复制引用
陆元园,王宾,刘辉,吴林林,陈璨,董新洲..风电场并网输电线路单相接地故障单端测距方法[J].电力系统自动化,2017,41(10):100-105,6.基金项目
国家自然科学基金资助项目(51477084) （51477084）
电力系统国家重点实验室自主课题(SKLD16Z07).This work is supported by National Natural Science Foundation of China (No. 51477084) and State Key Laboratory of Power System (No. SKLD16Z07). （SKLD16Z07）
