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1. 发明授权

US08791704B2 Fault-type identification for electric power delivery systems 有权
标题翻译：电力输送系统的故障识别
公开(公告)号：US08791704B2
公开(公告)日：2014-07-29
申请号：US13270498
申请日：2011-10-11
申请人： Mangapathirao Venkata Mynam , Yanfeng Gong
发明人： Mangapathirao Venkata Mynam , Yanfeng Gong
IPC分类号： G01R27/18 , G01R31/08 , H02H3/26
CPC分类号： G01R31/085 , G01R31/088 , H02H3/265
摘要： Disclosed herein are systems and methods for identifying a fault type in an electric power delivery system using an angle difference between a total zero-sequence current and a total negative-sequence current and a comparison of phase-to-phase currents against a threshold. The angle difference falls into one of a number of predetermined angle difference sectors. Each sector is associated with a phase-to-ground fault type and a phase-to-phase-to-ground fault type or two phase-to-phase-to-ground fault types. The phase-to-phase current(s) of the indicated phase-to-phase-to-ground fault type(s) associated with the sector are compared with a threshold to determine which of the fault types of the sector is the actual fault type. The threshold may be a multiple of a maximum phase-to-phase current.
摘要翻译：本文公开了用于使用总零序电流和总负序电流之间的角度差以及相 - 相电流与阈值的比较来识别电力输送系统中的故障类型的系统和方法。角度差落入多个预定角度差扇区之一。每个扇区与相对地故障类型和相间对地故障类型或两相对地对地故障类型相关联。将与扇区相关联的所指示的相间对地故障类型的相间电流与阈值进行比较，以确定扇区的哪些故障类型是实际故障类型。阈值可以是最大相间电流的倍数。

2. 发明申请

US20130088239A1 FAULT-TYPE IDENTIFICATION FOR ELECTRIC POWER DELIVERY SYSTEMS 有权
标题翻译：电力输送系统的故障类型识别
公开(公告)号：US20130088239A1
公开(公告)日：2013-04-11
申请号：US13270498
申请日：2011-10-11
申请人： Mangapathirao Venkata Mynam , Yanfeng Gong
发明人： Mangapathirao Venkata Mynam , Yanfeng Gong
IPC分类号： G01R31/40
CPC分类号： G01R31/085 , G01R31/088 , H02H3/265
摘要： Disclosed herein are systems and methods for identifying a fault type in an electric power delivery system using an angle difference between a total zero-sequence current and a total negative-sequence current and a comparison of phase-to-phase currents against a threshold. The angle difference falls into one of a number of predetermined angle difference sectors. Each sector is associated with a phase-to-ground fault type and a phase-to-phase-to-ground fault type or two phase-to-phase-to-ground fault types. The phase-to-phase current(s) of the indicated phase-to-phase-to-ground fault type(s) associated with the sector are compared with a threshold to determine which of the fault types of the sector is the actual fault type. The threshold may be a multiple of a maximum phase-to-phase current.
摘要翻译：本文公开了用于使用总零序电流和总负序电流之间的角度差以及相 - 相电流与阈值的比较来识别电力输送系统中的故障类型的系统和方法。角度差落入多个预定角度差扇区之一。每个扇区与相对地故障类型和相间对地故障类型或两相对地对地故障类型相关联。将与扇区相关联的所指示的相间对地故障类型的相间电流与阈值进行比较，以确定扇区的哪些故障类型是实际故障类型。阈值可以是最大相间电流的倍数。

3. 发明授权

US08558551B2 Fault location in electric power delivery systems 有权
标题翻译：电力输送系统故障定位
公开(公告)号：US08558551B2
公开(公告)日：2013-10-15
申请号：US13154700
申请日：2011-06-07
申请人： Mangapathirao Venkata Mynam , Yanfeng Gong , Armando Guzman-Casillas
发明人： Mangapathirao Venkata Mynam , Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： G01R31/06
CPC分类号： G01R31/086 , Y04S10/522
摘要： Accurately calculating location of a phase-to-phase fault even on a branched, non-homogenous, radial electric power distribution system. The calculation includes determining a calculated reactance to the fault without using positive-sequence current measurements, and uses the line parameters to determine locations on the system that match the calculated reactance to the fault. The calculation may further include a determination of faulted phase and eliminate fault location possibilities based on absence of the faulted phase at those locations.
摘要翻译：即使在分支式，非均匀的径向配电系统上，也能准确地计算出相间故障的位置。该计算包括在不使用正序电流测量的情况下确定对故障的计算电抗，并使用线路参数来确定系统上与故障的计算电抗匹配的位置。该计算还可以包括确定故障相位并且基于在那些位置处的故障相位的不存在来消除故障定位可能性。

4. 发明申请

US20120068717A1 FAULT LOCATION IN A NON-HOMOGENEOUS ELECTRIC POWER LINE 有权
标题翻译：故障位置在非均质电力线
公开(公告)号：US20120068717A1
公开(公告)日：2012-03-22
申请号：US12883944
申请日：2010-09-16
申请人： Yanfeng Gong , Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Richard M. Edge
发明人： Yanfeng Gong , Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Richard M. Edge
IPC分类号： G01R31/08
CPC分类号： G01R31/085 , G01R31/088 , H02H7/261
摘要： Fault location on a non-homogeneous electric power line that includes a plurality of sections by determining a section in which negative-sequence voltage magnitude profiles calculated from each terminal of the power line intersect. The fault location may determine the faulted section and determine the location of the fault within the faulted section. To determine the fault location, the negative-sequence voltage magnitude profiles may be calculated from measurements taken at each terminal of the power line and compared to determine a point where the profiles intersect. The profiles may be calculated using power line properties and measurements from each terminal.
摘要翻译：通过确定从电力线的每个端子计算的负序电压幅度曲线相交的部分，包括多个部分的非均匀电力线上的故障位置。故障位置可以确定故障部分，并确定故障部分内故障的位置。为了确定故障位置，可以根据在电力线的每个端子处进行的测量来计算负序电压幅度分布，并进行比较以确定轮廓相交的点。可以使用来自每个终端的电力线属性和测量来计算轮廓。

5. 发明授权

US08942954B2 Fault location in a non-homogeneous electric power line 有权
标题翻译：非均匀电力线故障定位
公开(公告)号：US08942954B2
公开(公告)日：2015-01-27
申请号：US12883944
申请日：2010-09-16
申请人： Yanfeng Gong , Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Richard M. Edge
发明人： Yanfeng Gong , Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Richard M. Edge
IPC分类号： G21C17/00 , G01R31/08 , H02H7/26
CPC分类号： G01R31/085 , G01R31/088 , H02H7/261
摘要： Fault location on a non-homogeneous electric power line that includes a plurality of sections by determining a section in which negative-sequence voltage magnitude profiles calculated from each terminal of the power line intersect. The fault location may determine the faulted section and determine the location of the fault within the faulted section. To determine the fault location, the negative-sequence voltage magnitude profiles may be calculated from measurements taken at each terminal of the power line and compared to determine a point where the profiles intersect. The profiles may be calculated using power line properties and measurements from each terminal.
摘要翻译：通过确定从电力线的每个端子计算的负序电压幅度曲线相交的部分，包括多个部分的非均匀电力线上的故障位置。故障位置可以确定故障部分，并确定故障部分内故障的位置。为了确定故障位置，可以根据在电力线的每个端子处进行的测量来计算负序电压幅度分布，并进行比较以确定轮廓相交的点。可以使用来自每个终端的电力线属性和测量来计算轮廓。

6. 发明申请

US20110264389A1 Fault Location in Electric Power Delivery Systems 有权
标题翻译：电力输送系统故障定位
公开(公告)号：US20110264389A1
公开(公告)日：2011-10-27
申请号：US13154700
申请日：2011-06-07
申请人： Mangapathirao Venkata Mynam , Yanfeng Gong , Armando Guzman-Casillas
发明人： Mangapathirao Venkata Mynam , Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： G06F19/00
CPC分类号： G01R31/086 , Y04S10/522
摘要： Accurately calculating location of a phase-to-phase fault even on a branched, non-homogenous, radial electric power distribution system. The calculation includes determining a calculated reactance to the fault without using positive-sequence current measurements, and uses the line parameters to determine locations on the system that match the calculated reactance to the fault. The calculation may further include a determination of faulted phase and eliminate fault location possibilities based on absence of the faulted phase at those locations.
摘要翻译：即使在分支式，非均匀的径向配电系统上，也能准确地计算出相间故障的位置。该计算包括在不使用正序电流测量的情况下确定对故障的计算电抗，并使用线路参数来确定系统上与故障的计算电抗匹配的位置。该计算还可以包括确定故障相位并且基于在那些位置处的故障相位的不存在来消除故障定位可能性。

7. 发明申请

US20110264388A1 FAULT LOCATION IN ELECTRIC POWER DELIVERY SYSTEMS 有权
标题翻译：电力输送系统中的故障位置
公开(公告)号：US20110264388A1
公开(公告)日：2011-10-27
申请号：US12764342
申请日：2010-04-21
申请人： Yanfeng Gong , Armando Guzman-Casillas
发明人： Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： G01R31/42
CPC分类号： G01R31/086 , G01R31/088 , Y04S10/522
摘要： Accurately calculating location of a fault even on a branched, non-homogenous, radial electric power distribution system. The calculation includes determining a calculated reactance or impedance to the fault, and uses the line parameters to determine locations on the system that match the calculated reactance to the fault. The calculation may further include a determination of faulted phase and eliminate fault location possibilities based on absence of the faulted phase at those locations. The calculation may further use data reported from line monitors such as faulted circuit indicators (FCIs).
摘要翻译：即使在分支的，非均匀的径向配电系统上，也能准确计算故障位置。该计算包括确定对故障的计算电抗或阻抗，并使用线路参数来确定与计算出的故障电抗匹配的系统上的位置。该计算还可以包括确定故障相位并且基于在那些位置处的故障相位的不存在来消除故障定位可能性。该计算还可以使用从线路监视器报告的数据，例如故障电路指示器（FCI）。

8. 发明授权

US08525522B2 Fault location in electric power delivery systems 有权
标题翻译：电力输送系统故障定位
公开(公告)号：US08525522B2
公开(公告)日：2013-09-03
申请号：US12764342
申请日：2010-04-21
申请人： Yanfeng Gong , Armando Guzman-Casillas
发明人： Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： G01R31/08 , G01R31/00
CPC分类号： G01R31/086 , G01R31/088 , Y04S10/522
摘要： Accurately calculating location of a fault even on a branched, non-homogenous, radial electric power distribution system. The calculation includes determining a calculated reactance or impedance to the fault, and uses the line parameters to determine locations on the system that match the calculated reactance to the fault. The calculation may further include a determination of faulted phase and eliminate fault location possibilities based on absence of the faulted phase at those locations. The calculation may further use data reported from line monitors such as faulted circuit indicators (FCIs).
摘要翻译：即使在分支的，非均匀的径向配电系统上，也能准确计算故障位置。该计算包括确定对故障的计算电抗或阻抗，并使用线路参数来确定与计算出的故障电抗匹配的系统上的位置。该计算还可以包括确定故障相位并且基于在那些位置处的故障相位的不存在来消除故障定位可能性。该计算还可以使用从线路监视器报告的数据，例如故障电路指示器（FCI）。

9. 发明授权

US07987059B2 Real-time power system oscillation detection using modal analysis 有权
标题翻译：使用模态分析实时电力系统振荡检测
公开(公告)号：US07987059B2
公开(公告)日：2011-07-26
申请号：US12247746
申请日：2008-10-08
申请人： Yanfeng Gong , Armando Guzman-Casillas
发明人： Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： H02J3/24 , H02J3/00 , G06F19/00 , G06F17/40
CPC分类号： H02J3/24 , G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A power system oscillation detection device is provided for use in an electric power system. A plurality of sample signals are acquired from the electrical power system via a plurality of intelligent electronic devices (IEDs) in communication with the power system. The power system oscillation detection device includes a real-time modal analysis module, a real-time mode identification module, and real-time decision and control logic. The real-time modal analysis module calculates modes of at least one of the signals, each mode including mode information. The real-time mode identification module together with the real-time decision and control logic determines, from the mode information, whether there is an undesirable oscillation in the electric power system and activates a remedial action.
摘要翻译：提供一种用于电力系统的电力系统振荡检测装置。通过与电力系统通信的多个智能电子设备（IED）从电力系统获取多个采样信号。电力系统振荡检测装置包括实时模态分析模块，实时模式识别模块和实时决策与控制逻辑。实时模态分析模块计算至少一个信号的模式，每个模式包括模式信息。实时模式识别模块与实时决策和控制逻辑一起根据模式信息确定电力系统中是否存在不期望的振荡并且启动补救动作。

10. 发明申请

US20090099798A1 Real-Time Power System Oscillation Detection Using Modal Analysis 有权
标题翻译：使用模态分析的实时电力系统振荡检测
公开(公告)号：US20090099798A1
公开(公告)日：2009-04-16
申请号：US12247746
申请日：2008-10-08
申请人： Yanfeng Gong , Armando Guzman-Casillas
发明人： Yanfeng Gong , Armando Guzman-Casillas
IPC分类号： G06F19/00
CPC分类号： H02J3/24 , G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A power system oscillation detection device is provided for use in an electric power system. A plurality of sample signals are acquired from the electrical power system via a plurality of intelligent electronic devices (IEDs) in communication with the power system. The power system oscillation detection device includes a real-time modal analysis module, a real-time mode identification module, and real-time decision and control logic. The real-time modal analysis module calculates modes of at least one of the signals, each mode including mode information. The real-time mode identification module together with the real-time decision and control logic determines, from the mode information, whether there is an undesirable oscillation in the electric power system and activates a remedial action.
摘要翻译：提供一种用于电力系统的电力系统振荡检测装置。通过与电力系统通信的多个智能电子设备（IED）从电力系统获取多个采样信号。电力系统振荡检测装置包括实时模态分析模块，实时模式识别模块和实时决策与控制逻辑。实时模态分析模块计算至少一个信号的模式，每个模式包括模式信息。实时模式识别模块与实时决策和控制逻辑一起根据模式信息确定电力系统中是否存在不期望的振荡并且启动补救动作。

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