公开(公告)号：US09246326B2

公开(公告)日：2016-01-26

申请号：US13701194

申请日：2010-10-05

申请人： Xinzhou Dong ,  Xuyang Li ,  Zhiqian Bo ,  Ray Chatfield ,  Andrzej Klimek

发明人： Xinzhou Dong ,  Xuyang Li ,  Zhiqian Bo ,  Ray Chatfield ,  Andrzej Klimek

IPC分类号： H02H9/00 ,  G06N5/00 ,  G06N5/04 ,  H02H1/00

CPC分类号： H02H9/007 ,  G06N5/048 ,  H02H1/0092

摘要： The invention concerns a method and a system for online ferroresonance detection in a high voltage electrical distribution network. The method includes: Overflux detection (23), which acts as the start element, overflux being set if the flux is greater than a threshold for specified time duration, mode verification (26) which is to recognize the modes of the ferroresonance, a fuzzy logic method being used to discriminate the ferroresonance modes.

摘要翻译： 本发明涉及一种用于在高压配电网络中在线铁磁谐振检测的方法和系统。 该方法包括：作为起始元件的超流量检测（23），如果通量大于规定持续时间的阈值，则过流量被设定，模式验证（26）识别铁磁共振的模式，模糊 逻辑方法用于区分铁磁共振模式。

公开(公告)号：US20130166493A1

公开(公告)日：2013-06-27

申请号：US13701194

申请日：2010-10-05

申请人： Xinzhou Dong ,  Xuyang Li ,  Zhiqian Bo ,  Ray Chatfield ,  Andrzej Klimek

发明人： Xinzhou Dong ,  Xuyang Li ,  Zhiqian Bo ,  Ray Chatfield ,  Andrzej Klimek

IPC分类号： G06N5/04

CPC分类号： H02H9/007 ,  G06N5/048 ,  H02H1/0092

摘要： The invention concerns a method and a system for online ferroresonance detection in a high voltage electrical distribution network. The method includes: Overflux detection (23), which acts as the start element, overflux being set if the flux is greater than a threshold for specified time duration, mode verification (26) which is to recognize the modes of the ferroresonance, a fuzzy logic method being used to discriminate the ferroresonance modes.

摘要翻译： 本发明涉及一种用于在高压配电网络中在线铁磁谐振检测的方法和系统。 该方法包括：作为起始元件的超流量检测（23），如果通量大于规定持续时间的阈值，则过流量被设定，模式验证（26）识别铁磁共振的模式，模糊 逻辑方法用于区分铁磁共振模式。

公开(公告)号：US20120123708A1

公开(公告)日：2012-05-17

申请号：US13263310

申请日：2009-05-15

申请人： Xinzhou Dong ,  Tao Cui ,  Zhiqian Bo ,  Andrzej Klimek ,  Andrzej Juszczyk

发明人： Xinzhou Dong ,  Tao Cui ,  Zhiqian Bo ,  Andrzej Klimek ,  Andrzej Juszczyk

IPC分类号： G06F19/00 ,  G01R31/02

CPC分类号： G01R31/025 ,  G01R31/086 ,  G01R31/088 ,  H02H1/0015 ,  H02H3/081 ,  H02H3/42 ,  Y04S10/522

摘要： A method and a system for transient and intermittent earth fault detection and direction determination in a three-phase median voltage electric power distribution system which comprises many lines. The system comprises: sampling means wherein the residual current and residual voltage on said lines are sampled, transient direction detection means based on instantaneous power, random intermittent detection means based on intermittent change of residual current amplitude, means of integrating transient direction and random intermittent detection, and alarm means indicating maintenance personnel to check the status of one line.

摘要翻译： 一种三相中压电力配电系统瞬态和间歇接地故障检测与方向确定方法及系统，包括多条线路。 该系统包括：采样装置，其中对所述线路上的剩余电流和剩余电压进行采样，基于瞬时功率的瞬态方向检测装置，基于剩余电流振幅的间歇变化的随机间歇检测装置，瞬态方向的积分装置和随机间歇检测装置 ，报警指示维护人员检查一条线的状态。

公开(公告)号：US08918296B2

公开(公告)日：2014-12-23

申请号：US13126139

申请日：2009-10-26

申请人： Xinzhou Dong ,  Tao Cui

发明人： Xinzhou Dong ,  Tao Cui

IPC分类号： G01R31/00 ,  G01R31/02 ,  H02H3/32 ,  H02H1/00

CPC分类号： G01R31/025 ,  H02H1/0092 ,  H02H3/32

摘要： The method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which collecting and calculating the phase differences of third harmonic waves relative to the fundamental wave of the residual current in the feeder line, and judging if the phase differences of the residual current in the feeder line is into a threshold range, and judging if there is a suspected grounding fault, and confirming the fault event by judging the duration and the generated times of the suspected grounding fault. Another method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which the residual current of neutral point is used.

摘要翻译： 提供了基于剩余电流谐波分量检测单相接地故障的方法，其中收集并计算相对于馈线中剩余电流基波的三次谐波的相位差，并判断是否 馈线中的剩余电流的相位差成为阈值范围，判断是否有可疑的接地故障，并通过判断可疑接地故障的持续时间和产生时间来确认故障事件。 提供了基于剩余电流谐波分量检测单相接地故障的另一种方法，其中使用了中性点的剩余电流。

公开(公告)号：US20110208449A1

公开(公告)日：2011-08-25

申请号：US13126139

申请日：2009-10-26

申请人： Xinzhou Dong ,  Tao Cui

发明人： Xinzhou Dong ,  Tao Cui

IPC分类号： G01R31/02 ,  G06F19/00

CPC分类号： G01R31/025 ,  H02H1/0092 ,  H02H3/32

摘要： The method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which collecting and calculating the phase differences of third harmonic waves relative to the fundamental wave of the residual current in the feeder line, and judging if the phase differences of the residual current in the feeder line is into a threshold range, and judging if there is a suspected grounding fault, and confirming the fault event by judging the duration and the generated times of the suspected grounding fault. Another method for detecting single-phase grounding fault based on the harmonic component of residual current is provided, in which the residual current of neutral point is used.

摘要翻译： 提供了基于剩余电流谐波分量检测单相接地故障的方法，其中收集并计算相对于馈线中剩余电流基波的三次谐波的相位差，并判断是否 馈线中的剩余电流的相位差成为阈值范围，判断是否有可疑的接地故障，并通过判断可疑接地故障的持续时间和产生时间来确认故障事件。 提供了基于剩余电流谐波分量检测单相接地故障的另一种方法，其中使用了中性点的剩余电流。