公开(公告)号：US10651645B2

公开(公告)日：2020-05-12

申请号：US15075845

申请日：2016-03-21

申请人： ABB Inc.

发明人： Tao Cui ,  Reynaldo Nuqui ,  Dmitry Ishchenko ,  Zhenyuan Wang

IPC分类号： H02H7/26 ,  H02H7/28 ,  G01R31/08 ,  H02H1/04

摘要： Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.

公开(公告)号：US20160274169A1

公开(公告)日：2016-09-22

申请号：US15075845

申请日：2016-03-21

申请人： ABB Inc.

发明人： Tao Cui ,  Reynaldo Nuqui ,  Dmitry Ishchenko ,  Zhenyuan Wang

IPC分类号： G01R31/02 ,  H02H3/16

CPC分类号： H02H7/28 ,  G01R31/08 ,  H02H7/261

摘要： Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.

摘要翻译： 电力系统故障检测和保护的系统和方法，用于评估由故障引起的电磁瞬变。 可以使用来自电力系统中的第一监控点的采样数据来检测故障。 也可以通过评估电力系统中其他监测点的样本数据来提取故障瞬变和相关特性（包括瞬态方向）的检测。 监视装置可以根据对故障的检测来确定是否跳闸交换设备，并且基于在电力系统的其他监控点处的故障瞬变的检测指示的确认。 是否跳闸或激活切换设备的确定还可以基于其他因素，包括接收到故障瞬变检测的指示的时间和/或所检测的瞬变的特性的评估。