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公开(公告)号：US20170102444A1
公开(公告)日：2017-04-13
申请号：US15293171
申请日：2016-10-13
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： David E. Whitehead , Tony J. Lee , Zachary King Sheffield , Tracey G. Windley
CPC classification number: G01R35/00 , G01R31/086 , G01R31/11 , G01R31/3272
Abstract: A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.
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62.发明授权Distributed coordinated electric power delivery control system using component models 有权使用组件模型的分布式协调电力输送控制系统公开(公告)号：US09383735B2
公开(公告)日：2016-07-05
申请号：US13828976
申请日：2013-03-14
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Gregary C. Zweigle
CPC classification number: G05B13/02 , H02H7/261 , H02J13/0079 , Y02E60/724 , Y02E60/725 , Y04S10/18 , Y04S10/20
Abstract: Distributed controllers in an electric power delivery system obtain measurements and equipment status, calculate derived values, and determine Intelligent Electronic Device (IED) state, and share such with other distributed controllers and coordination controllers. Distributed controllers and coordination controllers further refine measurements, equipment status, derived values, and IED state. Control of the electric power delivery system is coordinated among the distributed controllers and the coordination controllers.
Abstract translation: 电力传输系统中的分布式控制器获得测量和设备状态，计算导出值，并确定智能电子设备（IED）状态，并与其他分布式控制器和协调控制器共享。 分布式控制器和协调控制器进一步完善测量，设备状态，导出值和IED状态。 分布式控制器和协调控制器之间协调控制电力输送系统。
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63.发明授权公开(公告)号：US08990036B1
公开(公告)日：2015-03-24
申请号：US14486929
申请日：2014-09-15
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Mangapathirao Venkata Mynam , Armando Guzman-Casillas , Veselin Skendzic , Bogdan Z. Kasztenny , David E. Whitehead
CPC classification number: G01R31/088 , G01R31/11
Abstract: Fault location using traveling waves in an electric power delivery system according to the embodiments herein uses line parameters that are adjusted using traveling wave reflections from known discontinuities in the electric power delivery system. The arrival times of a traveling wave and a reflection of the traveling wave from a known discontinuity may be used to adjust parameters of the electric power delivery system such as, for example, line length. The adjusted parameter can then be used to more accurately calculate the location of the fault using the traveling waves.
Abstract translation: 根据本文实施例的在电力输送系统中使用行波的故障定位使用使用来自电力输送系统中的已知不连续性的行波反射来调整的线路参数。 可以使用行波的到达时间和来自已知不连续性的行波的反射来调整电力输送系统的参数，例如线路长度。 然后可以使用经调整的参数来更精确地计算使用行波的故障位置。
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公开(公告)号：US20150081236A1
公开(公告)日：2015-03-19
申请号：US14486925
申请日：2014-09-15
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Mangapathirao Venkata Mynam , Armando Guzman-Casillas , Veselin Skendzic , Bogdan Z. Kasztenny , David E. Whitehead
CPC classification number: G01R31/088 , G01R27/16 , G01R31/085
Abstract: Electric power delivery system fault location systems and methods as disclosed herein include validation of the received traveling wave fault measurements. Validation may include estimating a location of the fault using an impedance-based fault location calculation. Time windows of expected arrival times of traveling waves based on the estimated fault location and known parameters of the line may then be established. Arrival times of traveling waves may then be compared against the time windows. If the traveling waves arrive within a time window, then the traveling waves may be used to calculate the location of the fault.
Abstract translation: 如本文所公开的电力输送系统故障定位系统和方法包括接收的行波故障测量的验证。 验证可以包括使用基于阻抗的故障位置计算来估计故障的位置。 然后可以建立基于估计的故障位置和行的已知参数的行波的预期到达时间的时间窗口。 然后可以将行波的到达时间与时间窗口进行比较。 如果行波在时间窗内到达，则可以使用行波来计算故障的位置。
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公开(公告)号：US11125821B2
公开(公告)日：2021-09-21
申请号：US16835450
申请日：2020-03-31
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Tony J. Lee , David J. Casebolt , Krishnanjan Gubba Ravikumar , David Schmidt , Austin Edward Wade
IPC: G01R31/327 , H01H47/00 , H02H1/00
Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.
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Patent Agency Ranking
公开(公告)号：US11112466B2
公开(公告)日：2021-09-07
申请号：US16796563
申请日：2020-02-20
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , Tony J. Lee , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Lisa Gayle Nelms
IPC: G01R31/06 , G01R31/62 , G01R31/327 , H01F27/40 , H02H7/04
Abstract: The present disclosure pertains to devices, systems, and methods for monitoring an electric power system. In one embodiment, a system may detect a failure in an electric power system. The system may include a communication interface to receive a first indication related to a condition in the electric power system, and a second indication related to the condition. The system may also include a test subsystem to compare the first indication to the second indication and to determine a discrepancy between the first indication and the second indication. A diagnostic subsystem may identify the failure based on the discrepancy between the first indication and the second indication. An alert subsystem may generate an alert based on the failure.
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公开(公告)号：US20210111549A1
公开(公告)日：2021-04-15
申请号：US16788408
申请日：2020-02-12
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , David J. Casebolt , Krishnanjan Gubba Ravikumar , Austin Edward Wade , Lisa Gayle Nelms , Brian R. Clark
IPC: H02H1/00
Abstract: The present disclosure pertains to systems and methods for monitoring electrical arc events in an electric power system. In one embodiment, a system may comprise an arc flash detection (AFD) unit to detect electromagnetic radiation generated by an electrical arc event, a primary protection relay to generate measurements of an electric current, and an integrator. In various embodiments, the integrator may comprise a communication port to receive the detection of the electrical arc event and the measurements of the electric current. The integrator may also comprise a processing subsystem to validate the detection of the electrical arc and generate protective actions to interrupt the flow of the current to the electrical arc event.
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公开(公告)号：US20210109157A1
公开(公告)日：2021-04-15
申请号：US16919891
申请日：2020-07-02
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Krishnanjan Gubba Ravikumar , Austin Edward Wade
IPC: G01R31/327 , G01R35/02
Abstract: Systems and methods testing a power protection relay include a merging unit to receive signals from an electric power delivery system. The merging unit includes a test signal input to receive test signals from a testing device, a relay output to output at least one of the test signals to a power protection relay, a distribution output to output at least another of the test signals to one or more additional merging units, and a switch subsystem to route the test signal to the relay output or the distribution output.
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公开(公告)号：US20210109156A1
公开(公告)日：2021-04-15
申请号：US16835450
申请日：2020-03-31
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： Edmund O. Schweitzer, III , David E. Whitehead , Tony J. Lee , David J. Casebolt , Krishnanjan Gubba Ravikumar , David Schmidt , Austin Edward Wade
IPC: G01R31/327 , H01H47/00 , H02H1/00
Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.
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公开(公告)号：US10564246B2
公开(公告)日：2020-02-18
申请号：US15293171
申请日：2016-10-13
Applicant: Schweitzer Engineering Laboratories, Inc.
Inventor： David E. Whitehead , Tony J. Lee , Zachary King Sheffield , Tracey G. Windley
IPC: G01R35/00 , G01R31/11 , G01R31/327 , G01R31/08
Abstract: A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.
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