two-tone transmission

Telegraph equations, can be looked as cascade connection of two-port network of lumped circuit of transmission line, is a hyperbolic partial differential equations.

传输线可以看作集中参数二端口网络的级联，其数学模型&电报方程是一阶双曲型偏微分方程组。

Research on Fault Location Using Two Terminal Data of Transmission Line

使用双端数据故障定位方法的研究

A fault location algorithm for two terminal lines considering the variation of line parameter WAVELET TRANSFORM BASED DOUBLE TERMINAL METHOD OF TRAVELLING WAVE FAULT LOCATION IN DOUBLE-CIRCUIT PARALLEL TRANSMISSION LINE

一种考虑线路参数变化的输电线路双端测距算法基于小波变换的同杆并架双回线双端行波故障测距

Combining the advantages of the two kinds of HVDCs, a novel type of hybrid HVDC transmission is proposed, in which at sending terminal the Phase Control Converter ( PCC) is adopted and at receiving terminal the VSC is adopted.

文中提出一种结合二者优点的新型混合直流输电方式，其送端采用传统HVDC的相控换流器，受端采用VSC。

For long transmission lines, a factor k is presented to correct the error by tanh γχ≈γχ, and fault location can be accurately obtained by one or two iterative calculations.

而对长距离输电线，则提出一个修正系数来修正tanhγχ≈γχ的误差，通过一欠迭代计算获得准确的故障位置。