[특허]Determining status of electric power transmission lines in an electric power transmission system

Determining status of electric power transmission lines in an electric power transmission system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01R-021/00 G01R-019/00 G01R-031/02
출원번호	US-0493631 (2014-09-23)
등록번호	US-9568516 (2017-02-14)
발명자 / 주소	Gubba Ravikumar, Krishnanjan Upreti, Ashish Nayak, Bharath Korkmaz, Yusuf Zafer
출원인 / 주소	Schweitzer Engineering Laboratories, Inc.
대리인 / 주소	Cherry, Jared L.
인용정보	피인용 횟수 : 0 인용 특허 : 63

초록 ▼

The present application discloses systems and methods to determine loss of at least one electric power transmission line in an electric power transmission system. In various embodiments, a system consistent with the present disclosure may include an electrical parameter monitoring subsystem configured to receive electrical parameter measurements and to determine a change of the electrical measurements. An analysis subsystem may determine whether a change in the electrical measurements is indicative of loss of at least one transmission line and may calculate a number of transmission lines lost based on the change. In some embodiments, a remedial action subsystem may be configured to implement a remedial action in response to loss of at least one transmission line. The number of transmission lines lost may be determined based on an angle difference ratio and a power ratio between two buses in electrical transmission system.

대표청구항 ▼

1. A system configured to determine loss of at least one electric power transmission line in an electric power transmission system, the system comprising: an electrical parameter monitoring subsystem configured to: receive a first plurality of electrical parameter measurements taken at a first location over a period of time;receive a second plurality of electrical parameter measurements taken at a second location over the period of time; anddetermine a change in the first plurality of electrical measurements and the second plurality of electrical measurements over the period of time;an analysis subsystem configured to:determine that the change is indicative of loss of at least one transmission line;calculate an angle difference ratio;calculate a power ratio; andcalculate a number of transmission lines lost by calculating a product of the angle difference ratio and the power ratio; anda remedial action subsystem configured to implement a remedial action in response to loss of at least one transmission line, the remedial action comprising one of reconfiguring the electric power transmission system to re-routing electric power around the at least one transmission line and selectively disconnecting a load. 2. The system of claim 1, wherein the analysis subsystem is further configured to: identify an initial increase in at least one of the first plurality of electrical parameter measurements and the second plurality of electrical parameter measurements; andidentify a continuing increase following the initial increase at a reduced rate of change to determine that the change is indicative of loss of at least one transmission line. 3. The system of claim 1, wherein the analysis subsystem is configured to determine that the change is indicative of loss of at least one transmission line without reference to a static threshold. 4. The system of claim 1, wherein the electrical parameter monitoring subsystem is further configured to: measure a first current flowing in a first transmission line;measure a second current flowing in a second transmission line with an impedance that is approximately equal to an impedance of the first transmission line; andidentify a change in a ratio of the first current to the second current. 5. The system of claim 4, wherein the analysis subsystem is further configured to initiate a second remedial action based on loss of communication with the second location and based on the change in the ratio of the first current to the second current. 6. The system of claim 1, further comprising a communication interface configured to receive at least one of the first plurality of electrical parameter measurements and the second plurality of electrical parameter measurements. 7. The system of claim 1, further comprising a sensor component configured to measure at least one of the first plurality of electrical parameter measurements and the second plurality of electrical parameter measurements. 8. The system of claim 7, further comprising a time input configured to receive a time signal and wherein each of the plurality of electric parameter measurements made by the sensor component is associated with a time-stamp. 9. The system of claim 1, wherein the first location and the second location remain in electrical communication after the loss of the at least one transmission line. 10. A method of determining loss of at least one electric power transmission line in an electric power transmission system, the method comprising: receiving a first plurality of electrical parameter measurements taken at a first location over a period of time;receiving a second plurality of electrical parameter measurements taken at a second location over the period of time;determining a change in the first plurality of electrical measurements and the second plurality of electrical measurements over the period of time;determining that the change is indicative of loss of at least one transmission line;calculating an angle difference ratio;calculating a power ratio;calculating a number of transmission lines lost by calculating a product of the angle difference ratio and the power ratio;declaring an open line condition; andinitiating a first remedial action, the first remedial action comprising one of reconfiguring the electric power transmission system to re-routing electric power around the at least one transmission line and selectively disconnecting a load. 11. The method of claim 10, wherein determining that the change is indicative of loss of at least one transmission line comprises: identifying an initial increase in at least one of the first plurality of electrical parameter measurements and the second plurality of electrical parameter measurements;identifying a continuing increase following the initial increase at a reduced rate of change. 12. The method of claim 10, further comprising: identifying a specific transmission line lost by analyzing the first plurality of electrical parameter measurements, the second plurality of electrical parameter measurements, and the topography of the electric power transmission system. 13. The method of claim 10, wherein determining that the change is indicative of loss of at least one transmission line is performed without reference to a static threshold. 14. The method of claim 10, wherein determining that the change is indicative of loss of at least one transmission line comprises: measuring a first current flowing in a first transmission line;measuring a second current flowing in a second transmission line having an impedance that is approximately equal to an impedance of the first transmission line; andidentifying a change in a ratio of the first current to the second current. 15. The method of claim 14, further comprising: losing communication with the second location;initiating a second remedial action based on the change in the ratio of the first current to the second current.

이 특허에 인용된 특허 (63)

Forth, J. Bradford; Teachman, Michael E.; Yeo, Jeffrey W., Apparatus and method for measuring and reporting the reliability of a power distribution system.
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Petras, Charles E., Apparatus and method for transmitting information using an IRIG-B waveform generated by an intelligent electronic device.
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Hart,Ronald G., Apparatus and system for protection, control, and management of electricity distribution systems using time synchronization.
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Zweigle, Gregary C.; Guzman Casillas, Armando; Petras, Charles E.; Jiang, Ping, Apparatus, method, and system for wide-area protection and control using power system data having a time component associated therewith.
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Austin, Paul F., Assembly of a graphical program for accessing data from a data source/target.
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Fortenberry Rance M, Chromatic dispersion measurement scheme for optical systems having remote access points.
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Blackett, Andrew W.; Teachman, Michael E.; Forth, Bradford J., Communications architecture for intelligent electronic devices.
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Schweitzer ; III Edmund O. (Pullman WA) Wood David C. (Pullman WA), Communications processor for electric power substations.
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Shirota, Yoshihiro; Sekiguchi, Katsuhiko; Miyoshi, Tetsuya; Fuwa, Yutaka; Shimokawa, Yoshiyuki; Sasaki, Hideki; Hori, Masao, Control system method of protectively controlling electric power system and storage medium storing program code.
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Lin Ching-Fang, Coupled real time emulation method for positioning and location system.
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Truchard,James J.; Odom,Brian Keith, Deterministically handling asynchronous events in a time triggered system.
상세보기
Hart Ronald G.,CAX, Digital sensor apparatus and system for protection, control and management of electricity distribution systems.
상세보기
Hart Ronald G.,CAX, Digital sensor apparatus and system for protection, control, and management of electricity distribution systems.
상세보기
Thomas ; Jr. Jess B. (La Canada CA), Digital signal processor and processing method for GPS receivers.
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Beier Wolfgang (Weil der Stadt DEX) Graf Helmut (Stuttgart DEX), Direction-determining system.
상세보기
Schweitzer ; III Edmund O. (Whitman County WA), Display transducer apparatus.
상세보기
Kinney Michael A. (Raleigh NC) Cronvich James T. (Harahan LA) Zavis Wayne M. (Raleigh NC), Distributed current and voltage sampling function for an electric power monitoring unit.
상세보기
Fenton Patrick C.,CAX ; Petersen Walter D.,CAX, Dual Frequency global positioning system.
상세보기
Gunn, Colin N.; Etheridge, Hal E.; Hancock, Martin A.; Lightbody, Simon H.; Loewen, Dan N., Electric charge storage apparatus and method for an intelligent electronic device.
상세보기
Schweitzer, III, Edmund O.; Whitehead, David E.; Zweigle, Gregary C.; Fischer, Normann; Morris, Robert E., Electric power system automation using time coordinated instructions.
상세보기
Fernandes Roosevelt A. (104 Ruby Rd. Liverpool NY 13088), Electrical power line monitoring systems, including harmonic value measurements and relaying communications.
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Ransom,Douglas S.; Blackett,Andrew W.; Forth,J. Bradford, Energy management device and architecture with multiple security levels.
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Galloway,Jeffery L.; Jones,Curtis R., Extensible computer management rule engine.
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Chu, Jie; Sthothra Bhasham, Sampath Kumar; Sitaraman, Aravind; Thomas, Leslie Alan, Facility to transmit network management data to an umbrella management system.
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Lau Ken (San Franciso CA) Yee Jimmie (Danville CA) Mayeda Rodger (Danville CA) Riccomini Julian (Pleasanton CA) Ilyin Mary (Walnut Creek CA), Fault sensor device with radio transceiver.
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Lee,Tony J., Handheld communication tester and method for testing direct serial communication capability of an intelligent electronic device in a power system.
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Hancock, Martin A.; Taylor, Aaron J.; Lightbody, Simon H., High density random access memory in an intelligent electric device.
상세보기
Gilbert,Bryan J.; Forth,J. Bradford; Dagg,Jordon M.; Hancock,Martin A.; Hirschbold,Markus F.; Hyatt,Geoffrey T.; Lightbody,Simon H., Intelligent electronic device having network access.
상세보기
Forth, Bradford J.; Cowan, Peter C.; Giles, David W.; Ki, Chuen Shan Simon; Sheppard, Jason D.; Van Gorp, John C.; Yeo, Jeffrey W.; Teachman, Michael E.; Gilbert, Bryan J.; Hart, Ronald G., Intra-device communications architecture for managing electrical power distribution and consumption.
상세보기
Cohen, Clark; Lawrence, David; Cobb, Stewart; Montgomery, Paul; Samek, Miro; Zimmerman, Kurt; O'Connor, Michael; Melton, Walter; Gutt, Gregory, Low cost system and method for making dual band GPS measurements.
상세보기
Cohen, Clark; Lawrence, David; Cobb, Stewart; Montgomery, Paul; Samek, Miro; Zimmerman, Kurt; O'Connor, Michael; Melton, Walter; Gutt, Gregory, Low cost system and method for making dual band GPS measurements.
상세보기
Robert P. Thomas ; James V. Petrizzi, Man-machine interface for a virtual annunciator panel display.
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Premerlani William James ; Hoeweler David Jeremiah ; Esser Albert Andreas Maria ; Lyons James Patrick ; Kliman Gerald Burt ; Koegl Rudolph Alfred Albert ; Adamiak Mark Gerald, Method and apparatus for compensation of phasor estimations.
상세보기
Hellum P.ang.l,NOX ; Aksnes Kristin,NOX, Method and apparatus for synchronization of time stamping.
상세보기
Bertsch, Joachim; Kaba, Mehmet; Lekva, Odd, Method and device for assessing the stability of an electric power transmission network.
상세보기
Yalla Murty V. V. S. (Seminole FL), Method and system for providing protective relay functions.
상세보기
Stansell ; Jr. Thomas A., Mitigation of multipath effects in global positioning system receivers.
상세보기
Stansell ; Jr. Thomas Atlee ; Knight Jerry Eugene ; Keegan Richard Gerald ; Cahn Charles Robert, Mitigation of multipath effects in global positioning system receivers.
상세보기
Yalla Murty V. V. S. (Largo FL) Vescovi David C. (Pinellas Park FL) Beckwith Thomas R. (Largo FL), Multifunction protective relay system.
상세보기
Raby Peter,GBX ; Riley Stuart, Multipath compensation for pseudorange signals.
상세보기
Hart, Ronald G., Phasor transducer apparatus and system for protection, control, and management of electricity distribution systems.
상세보기
Kagan, Erran; Repka, Andrew; Banhegyesi, Tibor; Slota, Fred, Power meter having an auto-calibration feature and data acquisition capabilities.
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Granville J. Michael (9701 Wilshire Blvd. ; #850 Beverly Hills CA 90212) Costa Robert E. (8435 Sale Ave. Canoga Park CA 91304) Chu Sam Y. (23684 Justice St. Canoga Park CA 91304), Power transmission line monitoring system.
상세보기
Lin, Ching-Fang; Mao, Jen-Hao, Process and system of coupled real-time GPS/IMU simulation with differential GPS.
상세보기
Kasztenny, Bogdan Z.; Finney, Dale; Mazereeuw, Jeffrey; Marusca, Ioan, Protection and control system for electric power networks with signal and command interfaces at the primary equipment.
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Anderson, Luth r S.; Guzman-Casillas, Armando; Zweigle, Gregary C.; B nmouyal, Gabriel, Protective relay with synchronized phasor measurement capability for use in electric power systems.
상세보기
Schweitzer, III, Edmund O.; Anderson, Luther S.; Guzman-Casillas, Armando; Zweigle, Gregary C.; Benmouyal, Gabriel, Protective relay with synchronized phasor measurement capability for use in electric power systems.
상세보기
Randall, Bruce Everett; Jenrette, William Ian, Redundant precision time keeping for utility meters.
상세보기
Lee,Tony J.; Dolezilek,David J., Relay-to-relay direct communication system and method in an electric power system.
상세보기
Lee, Tony J.; Bogut, David G., Relay-to-relay direct communication system in an electric power system.
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Paul M. Griffin ; Guy H. Berthiaume, Revenue meter having precision time clock.
상세보기
Camp ; Jr. Thomas O. ; Makovicka Thomas J., Stand alone global positioning system (GPS) and method with high sensitivity.
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Pierce, David Mark; Tomashevsky, Maxim Mark; Roach, Anthony George, System and method for a shared memory architecture for high speed logging and trending.
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Lee,Tony J., System and method for aligning data between local and remote sources thereof.
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Forth, J. Bradford; Hancock, Martin A.; Gasper, Marcus; Van Doorn, Peter M., System and method for manufacturing and configuring intelligent electronic devices to order.
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Janke Donald R. (Milwaukee WI) Rodrian James A. (Grafton WI), System for calibrating a line isolation monitor.
상세보기
Hamamatsu, Koichi; Ito, Tokuo; Ito, Hachidai; Sameda, Yoshito; Saida, Toshiyuki; Suga, Noriyoshi; Nagasaki, Hiromi; Minami, Yuuji; Nakajima, Takashi; Maruyama, Shiro; Saito, Minoru; Tanaka, Tatsuji; , System for protecting and controlling substation main circuit components.
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Schweitzer ; III Edmund O. ; Scheer Gary W., System of communicating output function status indications between two or more power system protective relays.
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Slade, Walter R.; Frankenberg, Scott James; McCandless, Donald A.; Hickman, Christopher W., System, method, field unit, reference unit and computer program product for phase tracking of electrical conductors.
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Schweitzer, III,Edmund O.; Schweitzer,Edmund A.; Lee,Tony J., Systems and methods for performing a redundancy check using intelligent electronic devices in an electric power system.
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Tanamachi Steven W. (Lauderdale MN), Two-part sensor with transformer power coupling and optical signal coupling.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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Determining status of electric power transmission lines in an electric power transmission system 원문보기

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Determining status of electric power transmission lines in an electric power transmission system 원문보기

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