摘要
提出了基于双端不同步数据的故障定位(它不受过渡电阻影响,比单端算法定位准确)新算法,该算法利用故障前、后的电压电流信息对线路参数和故障距离分别迭代求解,同时综合修正线路长度、线路参数及电压电流等误差。仿真计算证明,该法估算线路参数和故障距离较准确,且不受故障类型、线路参数变化和故障线路长度误差等因素影响,鲁棒性较强。
The method of fault location which use data from two ends of the transmission line are not effected by the fault resistance and are more sensitive than those methods which use one-terminal data. So more attention are paid to them nowadays. A novel method based on two-terminal data is presented here, which can use the voltages and currents before and after fault to calculate the parameter of line and the point of fault iteratively and respectively. The algorithm can make a dynamic and integrative correction to the errors of voltage, current and the length and parameter of the line etc. The simulation proves that this method can estimate the line parameter and the fault distance more accurately. And the fault type, the change of line parameter, and the error of fault line has little influence to this method. So this method is more robust
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第9期1-4,共4页
High Voltage Engineering
关键词
故障定位
双端不同步
参数估计
fault location
unsynchronized two-terminal
parameter estimate
