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1. 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。

2. 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。

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

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。

5. 发明授权

US08346402B2 Islanding detection in an electrical power delivery system 有权
标题翻译：电力输送系统中的岛屿检测
公开(公告)号：US08346402B2
公开(公告)日：2013-01-01
申请号：US12777128
申请日：2010-05-10
申请人： Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Marcos A. Donolo
发明人： Armando Guzman-Casillas , Mangapathirao Venkata Mynam , Marcos A. Donolo
IPC分类号： G06F1/28 , G06F19/00 , G01R21/00 , G01R31/00
CPC分类号： G01R19/2513 , H02J2003/388
摘要： An intelligent electronic device is operable to use a signal derived from an electrical power delivery system to effectively detect an islanding condition. The intelligent electronic device is configured to compare a frequency deviation (from nominal frequency) and a rate-of-change of frequency of the electrical power delivery system to a protection characteristic of the intelligent electronic device to quickly and securely detect islanding conditions thereby enhancing power protection, automation, control, and monitoring performance. The intelligent electronic device uses local measurements of the electrical power deliver system to provide reliable and economical means to properly separate a generation site from the remainder of the electrical power delivery system. Such may be useful to prevent reclosing out of synchronism.
摘要翻译：智能电子设备可操作地使用从电力输送系统导出的信号来有效地检测孤岛状态。智能电子设备被配置为将电力输送系统的频率的频率偏差（与标称频率）的频率变化率和智能电子设备的保护特性进行比较，以快速且可靠地检测孤岛状况从而增强功率保护，自动化，控制和监控性能。智能电子设备使用电力输送系统的本地测量来提供可靠和经济的手段来将发电站点与电力输送系统的其余部分正确分离。这可能有助于防止重新闭合脱离同步。

6. 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。

7. 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。

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