公开(公告)号：US09442152B2

公开(公告)日：2016-09-13

申请号：US14458350

申请日：2014-08-13

Applicant: General Electric Company

Inventor： Zhilin Wu ,  Ilia Voloh ,  Lihan He ,  Zhihan Xu

IPC: G01R31/08

CPC classification number: G01R31/086 ,  Y04S10/522

Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.

Abstract translation: 公开了一种配电网故障定位系统。 故障定位系统包括至少一个传感器和故障定位评估装置。 所述至少一个传感器位于所述分配网络上，用于感测电流并将所述分配网络分成至少两个区域。 故障定位评估装置包括：故障区域确定单元，用于通过从所述至少一个传感器计算感测的电流来确定所述至少两个区域中的哪个区域是其中发生故障的故障区域。

公开(公告)号：US20170227611A1

公开(公告)日：2017-08-10

申请号：US15083818

申请日：2016-03-29

Applicant: General Electric Company

Inventor： Zhihan Xu ,  Tirath Bains ,  Tarlochan Sidhu ,  Mohammad Reza Dadash Zadeh

IPC: G01R31/40 ,  G01R31/02

CPC classification number: G01R31/40 ,  G01R31/025 ,  G01R31/088

Abstract: Embodiments of the disclosure relate to systems and methods for determining a fault location in a three-phase series-compensated power transmission line system by using symmetrical components-based formulas that describe various voltage and current relationships. The voltage and current relationships can be derived using a synchronous measurement procedure that is concurrently executed at a sending end and a receiving end of the first series-compensated power transmission line system. Furthermore, determining the fault location in accordance with certain embodiments of the disclosure can eliminate one or more of a need to calculate an impedance value of any of the series capacitors or the series capacitor protection elements that are a part of the three-phase series-compensated power transmission line system, a need to monitor any of the series capacitor protection elements, and a need to measure a voltage drop across any of the series capacitors.

公开(公告)号：US20170227595A1

公开(公告)日：2017-08-10

申请号：US15018470

申请日：2016-02-08

Applicant: General Electric Company

Inventor： Zhihan Xu ,  Tirath Bains ,  Tarlochan Sidhu ,  Mohammad Reza Dadash Zadeh

IPC: G01R31/08 ,  G01R31/02

CPC classification number: G01R31/085 ,  G01R31/025

Abstract: Embodiments of the disclosure relate to systems and methods for determining a fault location in a three-phase series-compensated power transmission line system by using symmetrical components-based formulas that describe various voltage and current relationships in the three-phase series-compensated power transmission lines during a fault condition. Furthermore, the systems and methods for determining the fault location in accordance with certain embodiments of the disclosure can eliminate one or more of a need to calculate an impedance value of any of the series capacitors or the series capacitor protection elements that are a part of the three-phase series-compensated power transmission line system, a need to monitor any of the series capacitor protection elements, and a need to measure a voltage drop across any of the series capacitors.

公开(公告)号：US10162015B2

公开(公告)日：2018-12-25

申请号：US15083818

申请日：2016-03-29

Applicant: General Electric Company

Inventor： Zhihan Xu ,  Tirath Bains ,  Tarlochan Sidhu ,  Mohammad Reza Dadash Zadeh

IPC: G01R31/14 ,  G01R31/40 ,  G01R31/02 ,  G01R31/08

Abstract: Embodiments of the disclosure relate to systems and methods for determining a fault location in a three-phase series-compensated power transmission line system by using symmetrical components-based formulas that describe various voltage and current relationships. The voltage and current relationships can be derived using a synchronous measurement procedure that is concurrently executed at a sending end and a receiving end of the first series-compensated power transmission line system. Furthermore, determining the fault location in accordance with certain embodiments of the disclosure can eliminate one or more of a need to calculate an impedance value of any of the series capacitors or the series capacitor protection elements that are a part of the three-phase series-compensated power transmission line system, a need to monitor any of the series capacitor protection elements, and a need to measure a voltage drop across any of the series capacitors.

公开(公告)号：US20150048841A1

公开(公告)日：2015-02-19

申请号：US14458350

申请日：2014-08-13

Applicant: General Electric Company

Inventor： Lihan He ,  Ilia Voloh ,  Zhilin Wu ,  Zhihan Xu

IPC: G01R31/08

CPC classification number: G01R31/086 ,  Y04S10/522

Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.

Abstract translation: 公开了一种配电网故障定位系统。 故障定位系统包括至少一个传感器和故障定位评估装置。 所述至少一个传感器位于所述分配网络上，用于感测电流并将所述分配网络分成至少两个区域。 故障定位评估装置包括：故障区域确定单元，用于通过从所述至少一个传感器计算感测的电流来确定所述至少两个区域中的哪个区域是其中发生故障的故障区域。