一种新型双端时域故障定位算法  

A New Fault Location Algorithm by Method of Two Terminal Time Domain

作　　者：钱峰[1] 陈义飞[1] 龚庆武[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072

出　　处：《高电压技术》2005年第2期81-83,共3页High Voltage Engineering

摘　　要：为解决输电线路故障分析法要求线路参数准确度极高而现场所得参数多有误差的问题,提出了一种能实 时修正参数的时域故障定位算法,它先用双端同步采样数据校正参数,再用相模变换解耦后在模域中列写故障点 微分方程并求解。RTDS动模实验表明,该算法能有效解决参数误差带来的影响,定位准确性和数值稳定性很好。The required accuracy of parameters in transmission line in traditional fault analysis methods is extremely high, but there are always certain errors in the on-site parameters. To solve the problem, a new time-domain fault location algorithm with ability of real-time parameter correction is proposed. At first, it corrects the parameter with the synchronal data, then decouples by phase-model transformation. The differential equation of fault location can be established and its solution would be obtained. The experiment of RTDS shows that the method can effectively eliminate the influence of errors and get satisfied location accuracy and numerical stability.

关 键 词：故障定位 参数校正 时域 相模变换 

分 类 号：TM755[电气工程—电力系统及自动化]