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1. 发明授权

US09906018B2 Electrical line status monitoring system 有权
公开(公告)号：US09906018B2
公开(公告)日：2018-02-27
申请号：US13355396
申请日：2012-01-20
申请人： Ross E. Teggatz , Wayne T. Chen , Brett Smith , James Kohout
发明人： Ross E. Teggatz , Wayne T. Chen , Brett Smith , James Kohout
IPC分类号： H02H3/00 , H02H11/00 , G01R19/165 , G01R31/28 , H02H3/08 , H02H3/18 , H02H3/04 , H02H3/40 , H02H3/42 , H02H7/26
CPC分类号： H02H11/005 , G01R19/16552 , G01R31/2853 , H02H3/04 , H02H3/08 , H02H3/18 , H02H3/40 , H02H3/42 , H02H7/267 , H02H11/006
摘要： Disclosed are advances in the arts with novel methods and apparatus for detecting faulty connections in an electrical system. Exemplary preferred embodiments include monitoring techniques and systems for monitoring signals at one or more device loads and analyzing the monitored signals for determining fault conditions at the device loads and/or at the main transmission lines. The invention preferably provides the capability to test and monitor electrical interconnections without fully activating the host system.

2. 发明申请

US20170047729A1 RELAY PROTECTION METHOD AND APPARATUS AGAINST LC PARALLEL CIRCUIT DETUNING FAULTS 审中-公开
标题翻译：继电保护方法和装置对并联电路解决故障
公开(公告)号：US20170047729A1
公开(公告)日：2017-02-16
申请号：US15305183
申请日：2015-01-08
申请人： NR ELECTRIC CO., LTD. , NR ELECTRIC ENGINEERING CO., LTD.
发明人： Qixue Zhang , Baoli Xu , Jie Zhang , Huazhong Li , Yaoyao Ji , Shouping Zhong , Guang Wang , Jun Chen , Wei Yan
IPC分类号： H02H7/20 , H02H7/16 , H02H7/04
CPC分类号： H02H7/20 , H02H3/04 , H02H3/52 , H02H7/042 , H02H7/06 , H02H7/16 , H02H7/267 , H02H7/268 , H02J1/02 , H02J3/01 , H02J3/24 , H02J3/36 , H02J2003/365 , Y02E40/40 , Y02E60/60
摘要： A relay protection method against LC parallel circuit detuning faults comprises the steps of: a relay protection device samples a current of a parallel LC, that is, a reactor and a capacitor, and samples a total current flowing through the whole LC; convert the current of the reactor into a current of an equivalent capacitor; calculate amplitudes of the current of the equivalent capacitor and a current of a realistic capacitor and calculate an amplitude of the total current flowing through the LC; calculate a current amplitude ratio of the equivalent capacitor to the realistic capacitor; and when the amplitude of the total current flowing through the LC is large enough, send an alarm signal or a trip after a setting time delay if the current ratio exceeds a preset upper and lower limit range. Also provided is a corresponding relay protection device.
摘要翻译：一种针对LC并联电路失谐故障的继电保护方法包括以下步骤：继电器保护装置对并联LC电流，即电抗器和电容器进行采样，并对流过整个LC的总电流进行采样; 将电抗器的电流转换为等效电容器的电流; 计算等效电容器的电流的幅度和实际电容器的电流，并计算流过LC的总电流的幅度; 计算等效电容器与实际电容器的电流幅度比; 并且当流过LC的总电流的幅度足够大时，如果电流比超过预设的上下限范围，则在设定时间延迟之后发送报警信号或跳闸。还提供了相应的继电保护装置。

3. 发明申请

US20160365722A1 FAULT IDENTIFICATION AND ISOLATION IN AN ELECTRIC PROPULSION SYSTEM 审中-公开
标题翻译：电动推进系统中的故障识别和隔离
公开(公告)号：US20160365722A1
公开(公告)日：2016-12-15
申请号：US15173947
申请日：2016-06-06
申请人： Rolls-Royce North American Technologies, Inc. , Rolls-Royce Corporation
发明人： Michael James Armstrong , Andrew Mark Bollman
IPC分类号： H02H7/26 , H02H3/02 , H02H3/00 , H02H1/00 , H02H1/06
CPC分类号： H02H7/267 , B60L3/0069 , B60L3/0092 , B60L11/08 , B60L2200/10 , B60L2200/32 , B60L2220/42 , B60L2240/429 , B60L2240/529 , B60L2240/549 , B63H23/24 , B63H23/28 , B64D27/24 , B64D2221/00 , H02H1/003 , H02H1/06 , H02H3/00 , H02H3/021 , Y02T10/646 , Y02T10/70 , Y02T10/7077 , Y02T50/62
摘要： An electric propulsion system is described that includes at least one branch for distributing electrical power, provided by a power source, to one or more loads. The at least one branch is partitioned into one or more zones and comprises a plurality of branch isolation devices that are configured to isolate the at least one branch from the power source in response to a fault current at the at least one branch. In addition, the at least one branch comprises a respective pair of zone isolation devices for each respective zone from the one or more zones. The respective pair of zone isolation devices for each respective zone is configured to isolate the respective zone from the at least one branch, during a test of the at least one branch for identifying which of the one or more zones is a source of the fault current.
摘要翻译：描述了一种电力推进系统，其包括至少一个用于将由电源提供的电力分配给一个或多个负载的分支。所述至少一个分支被划分成一个或多个区域并且包括多个分支隔离设备，其被配置为响应于所述至少一个分支处的故障电流将所述至少一个分支与所述电源隔离。此外，至少一个分支包括用于与一个或多个区域的每个相应区域的相应的一对区域隔离装置。用于每个相应区域的相应的一对区隔离装置被配置为在至少一个分支的测试期间将相应区域与所述至少一个分支隔离，用于识别所述一个或多个区域中的哪一个是所述故障电流的源。

4. 发明授权

US09461458B2 Method of distance protection of parallel transmission line 有权
标题翻译：并行传输线距离保护方法
公开(公告)号：US09461458B2
公开(公告)日：2016-10-04
申请号：US14238543
申请日：2012-08-06
申请人： Przemyslaw Balcerek , Murari Saha , Eugeniusz Rosolowski , Jan Izykowski , Piotr Pierz
发明人： Przemyslaw Balcerek , Murari Saha , Eugeniusz Rosolowski , Jan Izykowski , Piotr Pierz
IPC分类号： H02H3/42 , H02H3/36 , H02H7/26 , H02H3/16
CPC分类号： H02H3/16 , H02H3/42 , H02H7/267
摘要： The present invention is concerned with a method of distance protection of parallel transmission lines applicable both to series compensated and uncompensated electric power lines, using a distance relay. The method is characterized in that a pair of flags (ff1, ff2) are calculated for indication faulted and healthy circuits in parallel lines and in the same time a flag (Internal_Fault) for indication internal or external fault in parallel lines is calculated independently. Next gathering all calculated flags (ff1, ff2, Internal_Fault) an analyze of the value of these flags are performed and depending on the values of flags (ff1, ff2, Internal_Fault) and on their reciprocal relationship, a trip permission signal from the protection relay (4) is released and sent to the alarms devices or to the line breakers, or a block signal from the protection relay (4) is generated and sent to protect parallel lines before damage.
摘要翻译：本发明涉及一种使用距离继电器对并联传输线路进行距离保护的方法，其可应用于串联补偿和无补偿电力线路。该方法的特征在于，对并联线路中的指示故障和健康电路计算一对标志（ff1，ff2），并且同时计算用于指示并行线路中的内部或外部故障的标志（Internal_Fault）。接下来收集所有计算的标志（ff1，ff2，Internal_Fault），执行这些标志值的分析，并根据标志（ff1，ff2，Internal_Fault）的值和它们的倒数关系，保护继电器的跳闸许可信号（4）被释放并发送到报警装置或线路断路器，或者产生并发送来自保护继电器（4）的阻塞信号，并在发生损坏之前保护平行线路。

5. 发明申请

US20120188673A1 ELECTRICAL LINE STATUS MONITORING SYSTEM 有权
标题翻译：电线状态监测系统
公开(公告)号：US20120188673A1
公开(公告)日：2012-07-26
申请号：US13355396
申请日：2012-01-20
申请人： Ross E. Teggatz , Wayne T. Chen , Brett Smith , James Kohout
发明人： Ross E. Teggatz , Wayne T. Chen , Brett Smith , James Kohout
IPC分类号： H02H3/08
CPC分类号： H02H11/005 , G01R19/16552 , G01R31/2853 , H02H3/04 , H02H3/08 , H02H3/18 , H02H3/40 , H02H3/42 , H02H7/267 , H02H11/006
摘要： Disclosed are advances in the arts with novel methods and apparatus for detecting faulty connections in an electrical system. Exemplary preferred embodiments include monitoring techniques and systems for monitoring signals at one or more device loads and analyzing the monitored signals for determining fault conditions at the device loads and/or at the main transmission lines. The invention preferably provides the capability to test and monitor electrical interconnections without fully activating the host system.
摘要翻译：公开了用于检测电气系统中的故障连接的新颖方法和装置的技术进步。示例性优选实施例包括用于在一个或多个设备负载处监视信号的监视技术和系统，并且分析所监视的信号以确定在设备负载和/或主传输线处的故障状况。本发明优选地提供在不完全激活主机系统的情况下测试和监视电互连的能力。

6. 发明授权

US06633166B1 Method for generating an error signal identifying a short circuit 失效
标题翻译：用于产生识别短路的误差信号的方法
公开(公告)号：US06633166B1
公开(公告)日：2003-10-14
申请号：US09856042
申请日：2001-08-27
申请人： Steffen Kaiser
发明人： Steffen Kaiser
IPC分类号： G01R3108
CPC分类号： H02H7/267 , H02H7/262 , H02H7/263
摘要： The invention is directed to a method for producing a fault signal indicating a short-circuit between a first phase conductor and a second phase conductor of two different, parallel-running, three-phase power transmission lines. The method produces a fault signal indicating a short-circuit which has occurred between a first phase conductor and a second phase conductor of a power transmission arrangement.
摘要翻译：本发明涉及一种用于产生指示两个不同的并联运行的三相输电线路的第一相导体和第二相导体之间短路的故障信号的方法。该方法产生指示发生在电力传输装置的第一相导体和第二相导体之间的短路的故障信号。

7. 发明申请

US20030081364A1 Crossover fault classification for power lines with parallel circuits 失效
公开(公告)号：US20030081364A1
公开(公告)日：2003-05-01
申请号：US09951495
申请日：2001-09-13
发明人： James D. Stoupis , David Lubkeman , Reto Buettner , David G. Hart
IPC分类号： H02H003/00
CPC分类号： H02H7/267 , H02H1/00
摘要： The invention describes a method, system, device, and computer-readable medium having computer-executable instructions for classifying faults on an electrical power line. In particular, the invention permits the classification of crossover faults, using a local measurement technique. The inventive method includes providing a first electrical power transmission line and a second electrical power transmission line, and monitoring the first electrical power transmission line to identify a crossover fault occurring between the first and the second electrical power transmission lines.

8. 发明申请

US20030055585A1 Crossover fault classification for power lines with parallel circuits 失效
标题翻译：具有并联电路的电力线交叉故障分类
公开(公告)号：US20030055585A1
公开(公告)日：2003-03-20
申请号：US09951925
申请日：2001-09-13
发明人： James D. Stoupis , David Lubkeman , Reto Buettner , David G. Hart
IPC分类号： G06F019/00
CPC分类号： H02H1/00 , H02H3/385 , H02H7/267
摘要： The invention describes a method, system, device, and computer-readable medium having computer-executable instructions for classifying faults on an electrical power line. In particular, the invention permits the classification of crossover faults, using a local measurement technique. The inventive method includes providing a first electrical power transmission line and a second electrical power transmission line, and monitoring the first electrical power transmission line to identify a crossover fault occurring between the first and the second electrical power transmission lines.
摘要翻译：本发明描述了具有用于对电力线上的故障进行分类的计算机可执行指令的方法，系统，设备和计算机可读介质。特别地，本发明允许使用局部测量技术对交叉故障进行分类。本发明的方法包括提供第一电力传输线和第二电力传输线，并且监视第一电力传输线以识别出现在第一和第二电力传输线之间的交叉故障。

9. 发明授权

US6147845A System interconnection device and method of designing same 失效
标题翻译：系统互连装置及其设计方法
公开(公告)号：US6147845A
公开(公告)日：2000-11-14
申请号：US287979
申请日：1999-04-07
申请人： Yoshio Matsubara , Masakuni Asano , Noriaki Tokuda
发明人： Yoshio Matsubara , Masakuni Asano , Noriaki Tokuda
IPC分类号： H02H9/02 , H02H7/26 , H02J3/04 , H02J3/38 , H02H9/00
CPC分类号： H02H7/267 , H02J3/04
摘要： A system interconnection device connected between two systems, such as a commercial bus line carrying power from a commercial power line and a private bus line carrying power from a private power generator, is able to connect and disconnect the two systems, and, in the event of a fault, has a current-limiting effect, thus preventing instantaneous voltage drop of the respective bus lines. In the system interconnection device, unit parallel circuits made up of diodes and DC reactors are serially connected so that the diodes thereof have opposite directions. With this structure, in realizing operations equivalent to those of a conventional system interconnection device having a DC reactor between DC terminals of a single-phase rectifying bridge circuit, the number of diodes, which are rectifying elements, can be halved. This not only enables reduction of the total cost of elements, but also, particularly in high-voltage and extra-high-voltage systems, enables great reduction of the cost and space devoted to insulation.
摘要翻译：连接在两个系统之间的系统互连装置，例如从商用电力线承载电力的商业总线线路和承载来自私人发电机的电力的私人总线线路能够连接和断开两个系统，并且在事件具有限流效应，从而防止各母线的瞬时电压下降。在系统互连装置中，由二极管和直流电抗器构成的单元并联电路串联连接，使其二极管具有相反的方向。利用这种结构，在实现与单相整流桥式电路的直流端子之间具有直流电抗器的常规系统互连装置相同的操作时，作为整流元件的二极管的数量可以减半。这不仅能够降低元件的总成本，而且特别是在高压和超高压系统中，可以大大降低用于绝缘的成本和空间。

10. 发明授权

US5352983A Method and apparatus for detecting flashover between conductors in power transmission lines of different voltage levels suspended in parallel from the same towers 失效
标题翻译：用于检测与同一塔架平行悬挂的不同电压电平的输电线路中的导线之间的闪络的方法和装置
公开(公告)号：US5352983A
公开(公告)日：1994-10-04
申请号：US983728
申请日：1992-12-01
申请人： Leif Eriksson , Murari M. Saha
发明人： Leif Eriksson , Murari M. Saha
IPC分类号： G01R31/08 , H02H7/26
CPC分类号： G01R31/08 , H02H7/267
摘要： The invention relates to a method and a device for detecting a flashover between conductors in power transmission lines of different voltage levels suspended from the same towers and wherein the power lines are included in a power network where one of the power lines is stated to be a high-voltage power line (1) and where the other power lines are connected to the high-voltage line via transformers of a known transformer ratio (am) and internal impedance (ZXm) and wherein the line impedances (ZL) are known. Specific to the invention is that the fault current which is caused by a flashover is set to be equal to a detected current change in any of the phases in the high-voltage line. With this assumption an equation system can be set up with the aid of which the relative distance to fault n (0
摘要翻译：本发明涉及一种用于检测从同一塔悬挂的不同电压电平的输电线路中的导体之间的闪络的方法和装置，其中电力线包括在电力网络中，其中一条电力线被称为高压电力线（1），其他电力线通过已知变压器比（am）和内部阻抗（ZXm）的变压器连接到高压线，并且其中线路阻抗（ZL）是已知的。本发明的特征在于，将由闪络引起的故障电流设定为与高压线路中的任一相的检测电流变化相等。通过这个假设，可以建立方程系统，借此可以确定与故障n（0

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