基于正序分量的距离保护算法

A Digital Distance Relaying Algorithm Based on Positive Sequence Network

提出了一种利用线路双端正序量的距离保护算法，该算法由故障后线路两端的电压、电流向量的正序分量，经简单计算即可得出故障点的距离。EMTP仿真表明，该算法有较高的精度。

A Positive scquence based fault location algo-rithm is proposed in the paper. The proposed method usespositive phasors of voltage and current obtained from bothends of a transmission line, the method has considerablecomputational advantages over the previously proposedmethods, performance assessment on this method usingEMTP are presented. It is illustratcd that the porposedmethod can determine the fault location very accurately andis likely to be used in the distance protection.