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41. 发明授权

US08194374B2 Differential element with harmonic blocking and harmonic restraint operating in parallel 有权
标题翻译：具有谐波阻塞和谐波抑制的微分元件并联工作
公开(公告)号：US08194374B2
公开(公告)日：2012-06-05
申请号：US12424705
申请日：2009-04-16
申请人： Armando Guzman-Casillas , Normann Fischer
发明人： Armando Guzman-Casillas , Normann Fischer
IPC分类号： H02H3/00
CPC分类号： H02J3/01 , H02M1/12 , Y02E40/40
摘要： An intelligent electronic device (IED) provides harmonic blocking and harmonic restraint differential protection operating in parallel. The IED includes a harmonically-blocked differential element supervised by one or more even harmonics of a raw operating current (a current comprising the fundamental operating current and the harmonics thereof). The IED also includes a parallel, harmonically-restrained differential element, which is restrained by harmonics of the raw operating current. Tripping signals output by the parallel harmonically-blocked differential element and the harmonically-restrained differential element may be selectively combined into a single tripping signal output. An additional harmonic blocking element may supervise both differential elements and/or the combined tripping signal. The additional harmonic blocking element may provide odd-harmonic blocking, such as harmonic blocking based on a fifth harmonic of the raw operating current.
摘要翻译：智能电子设备（IED）提供并联运行的谐波阻塞和谐波抑制差动保护。 IED包括由原始工作电流（包括基波工作电流及其谐波的电流）的一个或多个偶次谐波监控的谐波阻塞的差分元件。 IED还包括一个并联的，谐波抑制的差分元件，其受原始工作电流的谐波的约束。由并联谐波阻塞的差分元件和谐波抑制的差分元件输出的跳闸信号可以选择性地组合成单个跳闸信号输出。附加谐波阻塞元件可以监控差分元件和/或组合跳闸信号。附加谐波阻塞元件可以提供奇次谐波阻塞，例如基于原始工作电流的五次谐波的谐波阻塞。

42. 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。

43. 发明授权

US08112235B2 State and topology processor 有权
标题翻译：状态和拓扑处理器
公开(公告)号：US08112235B2
公开(公告)日：2012-02-07
申请号：US12881240
申请日：2010-09-14
申请人： Edmund O. Schweitzer, III , Marcos A. Donolo , Armando Guzman-Casillas
发明人： Edmund O. Schweitzer, III , Marcos A. Donolo , Armando Guzman-Casillas
IPC分类号： G06F19/00
CPC分类号： G01R19/2513 , Y02E60/728 , Y04S10/265
摘要： A State and Topology Processor (STP) may be communicatively coupled to one or more intelligent electronic devices (IEDs) communicatively coupled to a electrical power system to obtain one or more current measurements, voltage measurements, and dynamic topology data therefrom. The STP may receive the measurement data and may determine a current topology and a voltage topology therefrom. A current processor may use the current topology and the current measurements to refine the measurements, perform KCL, unbalance, symmetrical component, and consistency checks on the electrical power system. The voltage processor may use the voltage topology and the voltage measurements to perform similar checks on the electrical power system. One or more alarms may be generated responsive to the checks. The data may be displayed to a user in a display of a human machine interface and/or may be transmitted to a user programmable task module, and/or an external control unit.
摘要翻译：状态和拓扑处理器（STP）可以通信地耦合到通信地耦合到电力系统的一个或多个智能电子设备（IED），以从其获得一个或多个电流测量值，电压测量值和动态拓扑数据。 STP可以接收测量数据，并且可以从其确定当前的拓扑和电压拓扑。当前的处理器可以使用当前的拓扑结构和当前的测量来细化测量，执行KCL，不平衡，对称分量和对电力系统的一致性检查。电压处理器可以使用电压拓扑和电压测量来对电力系统执行类似的检查。可以响应于检查而产生一个或多个警报。数据可以在人机接口的显示器中向用户显示和/或可以被发送到用户可编程任务模块和/或外部控制单元。

44. 发明授权

US07930117B2 Systems and methods for power swing and out-of-step detection using time stamped data 有权
标题翻译：使用时间戳数据进行功率摆幅和失步检测的系统和方法
公开(公告)号：US07930117B2
公开(公告)日：2011-04-19
申请号：US12239570
申请日：2008-09-26
申请人： Armando Guzman-Casillas
发明人： Armando Guzman-Casillas
IPC分类号： G01R19/00
CPC分类号： G06F1/28 , G01R29/18 , Y02E60/728 , Y04S10/265
摘要： A first intelligent electric device (IED) may be placed at a first location in an electrical power system and a second IED may be placed at a second location in the electrical power system. Voltage measurements may be received from the first and second IEDs. The measurements may be time aligned and used to calculate an angle difference between the first location and the second location in the electrical power system. A slip frequency and acceleration may be derived from the angle difference. The angle difference, slip frequency, and acceleration may be used to detect an out-of-step (OOS) condition in the electrical power system and/or a power swing between the first location and the second location in the electrical power system. The angle difference, slip frequency, and acceleration may also be used to predicatively detect OOS conditions.
摘要翻译：第一智能电气设备（IED）可以被放置在电力系统中的第一位置处，并且第二IED可以被放置在电力系统中的第二位置处。可以从第一和第二IED接收电压测量值。测量可以是时间对准的并且用于计算电力系统中的第一位置和第二位置之间的角度差。滑差频率和加速度可以从角度差导出。可以使用角度差，滑差频率和加速度来检测电力系统中的失步（OOS）状况和/或电力系统中的第一位置和第二位置之间的功率摆动。角度差，滑差频率和加速度也可用于预测检测OOS条件。

45. 发明申请

US20100125373A1 MINIMIZING CIRCULATING CURRENT USING TIME-ALIGNED DATA 有权
标题翻译：使用时间对齐的数据最小化循环电流
公开(公告)号：US20100125373A1
公开(公告)日：2010-05-20
申请号：US12695778
申请日：2010-01-28
申请人： Casper A. Labuschagne , Normann Fischer , Satish Samineni , Armando Guzman-Casillas
发明人： Casper A. Labuschagne , Normann Fischer , Satish Samineni , Armando Guzman-Casillas
IPC分类号： G06F1/28 , G06F1/26
CPC分类号： H02J3/1878 , G01R19/2513 , H02J3/46 , H02P13/06 , Y02E40/30 , Y02E60/728 , Y04S10/265
摘要： A power system may comprise two or more transformers operating in parallel. A voltage differential may exist between the transformers, which may create a circulating current in the power system. The system voltage of the power system may be modified by performing a tap change operation on one or more of the transformers. The tap change operation may be configured to minimize the circulating current. The circulating current may be minimized by determining the bias between the transformers using an angular difference between the transformer currents. The angular difference may be calculated using time-aligned measurement data. A tap change operation configured to modify the system voltage, while minimizing circulating current, may be determined using the transformer bias.
摘要翻译：电力系统可以包括并联操作的两个或更多个变压器。在变压器之间可能存在电压差，这可能在电力系统中产生循环电流。可以通过对一个或多个变压器执行抽头变换操作来修改电力系统的系统电压。抽头变换操作可以被配置为使循环电流最小化。可以通过使用变压器电流之间的角度差确定变压器之间的偏压来最小化循环电流。可以使用时间对准的测量数据来计算角度差。可以使用变压器偏压来确定在最小化循环电流的同时修改系统电压的抽头变换操作。

46. 发明申请

US20100002348A1 DISTRIBUTED BUS DIFFERENTIAL PROTECTION USING TIME-STAMPED DATA 有权
标题翻译：使用时间戳数据分配总线差分保护
公开(公告)号：US20100002348A1
公开(公告)日：2010-01-07
申请号：US12562861
申请日：2009-09-18
申请人： Marcos A. Donolo , Armando Guzman-Casillas , Edmund O. Schweitzer, III
发明人： Marcos A. Donolo , Armando Guzman-Casillas , Edmund O. Schweitzer, III
IPC分类号： H02H3/00
CPC分类号： H02H7/261 , H02H3/30 , Y02E60/728 , Y04S10/265
摘要： A distributed busbar protection system using time-stamped data gathered from measurement devices in an electrical power system bus arrangement by respective intelligent electronic devices (IEDs). The IEDs may derive the timestamp information from a clock or other time source, which may be synchronized to a common time source and/or an absolute time. The time-stamped measurement data may be used by a protection device to monitor and/or protect the electrical power system. The protection device may include a real-time vector processor, which may time-align the time-stamped data, determine one or more bus differential protection zones, and implement a differential protection function within each of the protection zones. One or more protective control signals may be transmitted to the IEDs to trip the corresponding breakers and clear the bus fault.
摘要翻译：一种分布式母线保护系统，其使用通过相应的智能电子设备（IED）在电力系统总线布置中从测量装置收集的时间戳数据。 IED可以从时钟或其他时间源导出时间戳信息，其可以被同步到公共时间源和/或绝对时间。时间戳的测量数据可以由保护装置用于监视和/或保护电力系统。保护装置可以包括实时矢量处理器，其可以时间对准时间戳数据，确定一个或多个总线差动保护区域，并且在每个保护区域内实现差动保护功能。可以将一个或多个保护控制信号发送到IED以跳过相应的断路器并清除总线故障。

47. 发明申请

US20090088989A1 SYMMETRICAL COMPONENT AMPLITUDE AND PHASE COMPARATORS FOR LINE PROTECTION USING TIME STAMPED DATA 有权
标题翻译：使用时间戳数据进行线路保护的对称分量放大器和相位比较器
公开(公告)号：US20090088989A1
公开(公告)日：2009-04-02
申请号：US12239615
申请日：2008-09-26
申请人： Armando Guzman-Casillas
发明人： Armando Guzman-Casillas
IPC分类号： G01R31/02
CPC分类号： G01R31/088 , G01R31/085 , H02H7/263 , Y02E60/728 , Y04S10/265
摘要： A set of current measurements may be transmitted from a remote Intelligent Electronic Device (IED) to a local IED. The current measurements may comprise a timestamp and/or be associated with timestamp information to allow the local IED to time align the local current measurement with the remote current measurement. The local IED may detect a fault within the power system segment defined by the local and remote IEDs by comparing an operating current to a scaled restraint current. A fault may also be detected by comparing the operating current to a scaled nominal current. The operating and restraint currents may be derived from the local and remote current measurements. The restraint current scale may be derived from the characteristics of the local and/or remote IED. The current measurements may correspond to a negative-sequence component and/or a zero-sequence component of a three-phase current measurement set.
摘要翻译：一组当前测量可以从远程智能电子设备（IED）传输到本地IED。当前测量可以包括时间戳和/或与时间戳信息相关联，以允许本地IED将局部电流测量与远程电流测量进行时间对准。本地IED可以通过将工作电流与缩放的约束电流进行比较来检测由本地和远程IED定义的电力系统段内的故障。也可以通过将工作电流与缩放的额定电流进行比较来检测故障。操作和约束电流可以从本地和远程电流测量中得出。约束电流刻度可以从本地和/或远程IED的特性导出。电流测量可对应于三相电流测量集合的负序分量和/或零序分量。

48. 发明申请

US20060291120A1 Dynamically configurable relay element and related methods 有权
公开(公告)号：US20060291120A1
公开(公告)日：2006-12-28
申请号：US11473432
申请日：2006-06-23
申请人： Armando Guzman-Casillas , Luther Anderson
发明人： Armando Guzman-Casillas , Luther Anderson
IPC分类号： H02H3/08
CPC分类号： H02H3/08 , H02H3/006 , H02H3/0935
摘要： A dynamically configurable relay element configured to protect an electrical system, including a dynamically calculated relay operating quantity, a dynamically calculated relay pickup setting, a dynamically calculated time dial, a plurality of dynamically calculated variables that define a characteristic of the dynamically configurable relay element, and a dynamically calculated operating time, the dynamically calculated operating time based on the dynamically calculated relay operating quantity, the dynamically calculated relay pickup setting, the dynamically calculated time dial and the plurality of dynamically calculated variables. The relay element may be an inverse-time overcurrent element, an instantaneous overcurrent element, an adaptive pickup overcurrent element, and inverse-time overvoltage element, a voltage restrained overcurrent element, and an inverse-time undervoltage element.

49. 发明申请

US20060224336A1 System and method for transmitting power system data over a wide area network 审中-公开
标题翻译：通过广域网传输电力系统数据的系统和方法
公开(公告)号：US20060224336A1
公开(公告)日：2006-10-05
申请号：US11399285
申请日：2006-04-05
申请人： Charles Petras , James Anderson , Armando Guzman-Casillas , Ping Jiang , Kenneth Fodero
发明人： Charles Petras , James Anderson , Armando Guzman-Casillas , Ping Jiang , Kenneth Fodero
IPC分类号： G01R21/00
CPC分类号： H04L12/66
摘要： Provided is a system for transmitting synchronized phasors over a wide area network. The system generally includes a plurality of phasor measurement units (PMUs). Each of the PMUs are associated with a secured portion of a power system and measure power system data from the secured portion of the power system associated therewith. The power system data is associated with a time-element. A power system data concentrator is further provided in communication with the phasor measurement units such that it aggregates and time-correlates the power system data. A server is further provided in communication with the power system data concentrator. The server includes a program for transferring the aggregated time-correlated power system data from the secured portion of the power system to a non-secure network.
摘要翻译：提供了一种用于在广域网上发送同步相量的系统。该系统通常包括多个相量测量单元（PMU）。每个PMU与电力系统的固定部分相关联并且从与其相关联的电力系统的固定部分测量电力系统数据。电力系统数据与时间元素相关联。进一步提供与相量测量单元通信的电力系统数据集中器，使得其聚集和时间关联电力系统数据。进一步提供与电力系统数据集中器通信的服务器。服务器包括用于将聚合的时间相关电力系统数据从电力系统的安全部分传送到非安全网络的程序。

50. 发明授权

US06411865B1 System for protection zone selection in microprocessor-based relays in an electric power system 有权
标题翻译：电力系统中基于微处理器的继电器保护区选择系统
公开(公告)号：US06411865B1
公开(公告)日：2002-06-25
申请号：US09603824
申请日：2000-06-26
申请人： Bai-Lin Qin , Armando Guzman-Casillas
发明人： Bai-Lin Qin , Armando Guzman-Casillas
IPC分类号： G05B1101
CPC分类号： H02H1/0092 , H02H7/26 , Y10T307/944
摘要： The system uses graph theory to define busline arrangements as a series of vertices and edges, wherein the vertices include the number of busses in the system and the edges include disconnect circuit branches connecting the individual vertices. A particular system configuration, selected by the system operator, determines the status (open or closed) of the various disconnect branches. A processor establishes an incident graph matrix, including positions of all the vertices and edges. The matrix is modified in accordance with graph theory and the condition of the disconnect switches. Graph operations are performed to produce a resulting matrix which defines vertices and the edges incident thereon into zones of protection. Fault analysis in the busline can then be performed in accordance with each zone of protection.
摘要翻译：该系统使用图论来将总线布置定义为一系列顶点和边缘，其中顶点包括系统中的总线数量，并且边缘包括连接各个顶点的断开电路分支。由系统操作员选择的特定系统配置确定各种断开分支的状态（打开或关闭）。处理器建立一个事件图表矩阵，包括所有顶点和边的位置。矩阵根据图论和断开开关的条件进行修改。执行图形操作以产生将顶点和入射到其上的边缘定义为保护区域的结果矩阵。然后可以根据每个保护区进行总线故障分析。

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