公开(公告)号：US20170003335A1

公开(公告)日：2017-01-05

申请号：US14789042

申请日：2015-07-01

Applicant: ABB Technology AG

Inventor： Ning Kang ,  Gergely Gombos ,  Mirrasoul J. Mousavi

IPC: G01R31/08

CPC classification number: G01R31/085 ,  G01R19/2513 ,  G01R31/088

Abstract: A highly accurate fault location method for series-compensated double-circuit transmission lines having series compensation devices and metal oxide varistors (SC&MOV) at first and second terminal ends is provided. Synchronized or unsynchronized current phasors and local voltage phasors are used as input to the fault location method. The voltages and currents at the fault point are formulated as a function of the unknown fault location. Boundary conditions for the particular IED-determined fault type are used to derive the fault location formulas.

Abstract translation: 提供了一种高精度的故障定位方法，用于在第一和第二终端具有串联补偿装置和金属氧化物变阻器（SC＆MOV）的串联补偿双回路传输线。 同步或不同步的电流相量和局部电压相量被用作故障定位方法的输入。 故障点处的电压和电流表示为未知故障位置的函数。 用于特定IED确定的故障类型的边界条件用于导出故障定位公式。