公开(公告)号：US20140074414A1

公开(公告)日：2014-03-13

申请号：US14078055

申请日：2013-11-12

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Edmund O. Schweitzer, III ,  Armando Guzman-Casillas ,  Veselin Skendzic ,  Mangaoathirao Venkata Mynam

IPC: G01R31/08

CPC classification number: G01R31/088 ,  G01R31/085 ,  H02H7/26 ,  H02H7/261 ,  H02H7/265

Abstract: Disclosed herein are various embodiments of systems and methods for calculating a fault location in electric power delivery system based on a traveling wave created by an electrical fault in the electric power delivery system. According to one embodiment, an intelligent electronic device may be configured to detect a transient traveling wave caused by an electrical fault. A first traveling wave value of the transient traveling wave may be determined and a corresponding first time associated with the first traveling wave may be determined. The IED may receive a second time associated with a second traveling wave value of the transient traveling wave detected by a remote IED. The distance to the remote IED may be known. An estimated fault location may be generated based on the time difference between the first time and the second time. Additional methods of calculating the fault location may also be employed.

Abstract translation: 这里公开了用于基于由电力输送系统中的电气故障产生的行波来计算电力输送系统中的故障位置的系统和方法的各种实施例。 根据一个实施例，智能电子设备可以被配置为检测由电故障引起的瞬态行波。 可以确定瞬态行波的第一行波值，并且可以确定与第一行波相关联的对应的第一时间。 IED可以接收与由远程IED检测的瞬态行波的第二行波值相关联的第二次。 到远程IED的距离可能是已知的。 可以基于第一时间和第二时间之间的时间差来生成估计的故障位置。 还可以采用额外的计算故障位置的方法。

公开(公告)号：US08781766B2

公开(公告)日：2014-07-15

申请号：US14078055

申请日：2013-11-12

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Edmund O. Schweitzer, III ,  Armando Guzman-Casillas ,  Veselin Skendzic ,  Mangaoathirao Venkata Mynam

IPC: G01R13/06 ,  G01R13/02 ,  G01R13/04 ,  G01R13/08 ,  G01R31/08 ,  H02H7/26

CPC classification number: G01R31/088 ,  G01R31/085 ,  H02H7/26 ,  H02H7/261 ,  H02H7/265

Abstract: Disclosed herein are various embodiments of systems and methods for calculating a fault location in electric power delivery system based on a traveling wave created by an electrical fault in the electric power delivery system. According to one embodiment, an intelligent electronic device may be configured to detect a transient traveling wave caused by an electrical fault. A first traveling wave value of the transient traveling wave may be determined and a corresponding first time associated with the first traveling wave may be determined. The IED may receive a second time associated with a second traveling wave value of the transient traveling wave detected by a remote IED. The distance to the remote IED may be known. An estimated fault location may be generated based on the time difference between the first time and the second time. Additional methods of calculating the fault location may also be employed.