Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2011-04-19
2011-04-19
Charioui, Mohamed (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S064000
Reexamination Certificate
active
07930117
ABSTRACT:
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.
REFERENCES:
patent: 4719469 (1988-01-01), Beier
patent: 4821294 (1989-04-01), Thomas
patent: 4829298 (1989-05-01), Fernandes
patent: 5006846 (1991-04-01), Granville
patent: 5224011 (1993-06-01), Yalla
patent: 5446682 (1995-08-01), Janke
patent: 5498956 (1996-03-01), Kinney
patent: 5592393 (1997-01-01), Yalla
patent: 5731943 (1998-03-01), Roberts
patent: 5736961 (1998-04-01), Fenton
patent: 5963582 (1999-10-01), Stansell
patent: 5995911 (1999-11-01), Hart
patent: 6075987 (2000-06-01), Camp
patent: 6104729 (2000-08-01), Hellum
patent: 6121886 (2000-09-01), Andersen
patent: 6127970 (2000-10-01), Lin
patent: 6141196 (2000-10-01), Premerlani
patent: 6160841 (2000-12-01), Stansell
patent: 6212446 (2001-04-01), Sato
patent: 6236949 (2001-05-01), Hart
patent: 6252863 (2001-06-01), Raby
patent: 6313934 (2001-11-01), Fortenberry
patent: 6429785 (2002-08-01), Griffin
patent: 6446682 (2002-09-01), Viken
patent: 6476521 (2002-11-01), Lof
patent: 6518767 (2003-02-01), Roberts
patent: 6570534 (2003-05-01), Cohen
patent: 6603298 (2003-08-01), Guzman-Casillas
patent: 6618648 (2003-09-01), Shirota
patent: 6642700 (2003-11-01), Slade
patent: 6662124 (2003-12-01), Schweitzer
patent: 6671654 (2003-12-01), Forth
patent: 6687627 (2004-02-01), Gunn
patent: 6690175 (2004-02-01), Pinzon
patent: 6694270 (2004-02-01), Hart
patent: 6735523 (2004-05-01), Lin
patent: 6735535 (2004-05-01), Kagan
patent: 6745175 (2004-06-01), Pierce
patent: 6751653 (2004-06-01), Austin
patent: 6754597 (2004-06-01), Bertsch
patent: 6762714 (2004-07-01), Cohen
patent: 6815932 (2004-11-01), Wall
patent: 6833711 (2004-12-01), Hou
patent: 6845301 (2005-01-01), Hamamatsu
patent: 6845333 (2005-01-01), Anderson
patent: 6853978 (2005-02-01), Forth
patent: 6859742 (2005-02-01), Randall
patent: 6934654 (2005-08-01), Benmouyal
patent: 6944555 (2005-09-01), Blackett
patent: 6961753 (2005-11-01), Osburn
patent: 6983393 (2006-01-01), Truchard
patent: 7006935 (2006-02-01), Seki
patent: 7096175 (2006-08-01), Rehtanz
patent: 7107162 (2006-09-01), Zima et al.
patent: 7248977 (2007-07-01), Hart
patent: 7304403 (2007-12-01), Xu
patent: 2001/0012984 (2001-08-01), Adamiak
patent: 2003/0200038 (2003-10-01), Schweitzer et al.
patent: 2003/0220752 (2003-11-01), Hart
patent: 2004/0059469 (2004-03-01), Hart
patent: 2004/0093177 (2004-05-01), Schweitzer
patent: 2006/0029105 (2006-02-01), Kasztenny
patent: 2006/0067095 (2006-03-01), Hou et al.
patent: 2006/0152866 (2006-07-01), Benmouyal
patent: 2006/0224336 (2006-10-01), Petras et al.
patent: 2006/0247874 (2006-11-01), Premerlani
patent: 2006/0259255 (2006-11-01), Anderson
patent: 2007/0086134 (2007-04-01), Zweigle
patent: 1324454 (2003-07-01), None
patent: 1324455 (2003-07-01), None
patent: 03055028 (2003-07-01), None
Kim Lab 2.3-Phase Watts, Vars, and Volt-Amperes: In:EECE 324 Energy Conversion Lab Manual (online) 2003 Retrieved Nov. 27, 2008 http://www.hirstbrook.com/energylab/Lab%202.pdf.
Zima Special Production Schemes in Electric Power Systems:Literature Survey (online) Jun. 6, 2002 p. 1-22 http://www.eeh.ee.ethz.ch/fileadmin/user—upload/eeh/publications/psl/zima—survey.pdf.
Saman A. Zonouz and William H. Sanders, Information Trust Institute, Coordinated Science Laboratory, and Electrical and Computer Engineering Department University of Illinois at Urbana-Champaign a Kalman-based Coordination for Hierarchial State Estimation: Algorithm and Analysis 2008.
A.P. Sakis Meliopoulos, George J. Cokkinides, Floyd Galvan, Bruce Fardanesh, Georgia Institute of Technology, Entergy Services, Inc and New York Power Authority Distributed State Estimator-Advaces and Demonstration 2008.
Improved Power System Performance through Wide Area Monitoring, Protection, and Control ABB 2004.
Patent Cooperation Treaty; From the International Bureau; Date of Mailing Apr. 2, 2009; PCT/US2007/020277; Notification Concerning Transmittal of International Preliminary Report on Patentability (Chapter I of the Patent Cooperation Treaty); International Filing Date Sep. 19, 2007; Applicant: Schweitzer Engineering Laboratories, Inc.
IEEE Xplore 2.0: Comparative Testing of Sychronized Phasor Measurement Units by Juancarlo Depablos, Virgilo Centeno, Arun G. Phadke and Michael Ingram; http://ieeexplore.ieee.org/spl/freeabs—all.jsp?arnumber=1372972, Jun. 2004.
R.O. Burnett, Jr., M.M. Butts, T.W. Cease, V. Centeno, G. Michel, R. J. Murphy, A. G. Phadke-Synchronized Phasor Measurements of a Power System Event-IEEE Transactions on Powe Aug. 3, 1994 (pp. 1643-1650; vol. 9, No. 3).
Mark Adamiak, Dr. William Premerani, Dr. Bogdan Kasztenny Synchrophasors: Definition, Measurement, and Application-Power Systems 2005 Conference, Marden Center, Clemson University Mar. 8-11, 2005 dated Mar. 11, 2005.
Ragael San Vincente, Raul Cortes, Jaime Robles, J. Enrique Chong-Quero-DSP-Microcontroller Implementations of a Simplified Algorithm for Synchrophasor Calculation-2nd International conference on Electrical Engineering (CIE 2005), Mexico City, Mexico Sep. 7-9, 2005 (pp. 408-411; IEEE Catalog No. 05EX1097.
Tsuyoshi Funaki, Shunsuke Tanaka Error Estimation and Correction of DFT in Synchronized Phasor Measurement-Transmission and Distribution Conference and Exhibition 2002: Asia Pacific, IEEE/PES dated Aug. 6, 2002 (pp. 448-453, vol. 1).
A.G. Phadke Synchronized Phasor Measurements—A Historical Overview-Transmission and Distribution Conference and Exhibition 2002: Asia Pacific, IEEE/PES dated Aug. 6, 2002 (pp. 476-479, vol. 1).
Jian Li, Xiaorong Xie, Jinyu Xiao; Jingtao Wu The Framework and Algorithm of a New Phasor Measurement Unit-2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DROT2004) Apr. 2004 Hong Kong dated Apr. 5, 2004 (pp. 826-831, vol. 2).
Yutaka Ota, Hiroyuki Ukai, Koichi Nakamura, Hideki Fujita Evaluation of Stability and Electric Power Quality in Power System by Using Phasor Measurements-Power System Technology, 2000, Proceedings, PowerCon 2000, International Conference dated Dec. 4, 2000 (pp. 1335-1340, vol. 3).
A.G. Phadke Synchronized Phasor Measurements in Power Systems—IEEE Computer Applicatons in Power dated Apr. 1993 (vol. 6).
Gabriel Benmouyal, E.O. Schweitzer, A. Guzman Synchronized Phasor Measurement in Protective Relays for Protection, Control, and Analysis of Electric Power Systems—29th Annual Western Protective Relay Conference Spokane, Washington, Oct. 22-24, 2002 (also available at http://www.selinc.com/techpprs/6139.pdf).
National Instruments Synchronizing and Correlating Measurements to a Global Timebase with GPS; http://zone.ni.com/devzone/cda/tut/p/id/4202 (visited on Sep. 7, 2006).
Enrique Martinez, Nicolas Juarex, Armando Guzman, Greg Zweigle, Jean Leon Using Synchronized Phasor Angle Difference for Wide-Area Protection and Control; www.selinc.com/techpprs/TP6254—UsingSynchronizedPhasor—20060922.pdf dated Sep. 22, 2006.
ABB Wide Area Measurement, Monitoring, Protection and Control Industrial IT for Energy System Operation-http://library.abb.com/GLOBAL/SCOT/scot221.nsf/VerityDisplay/E1755E3F1F32890EC1256E3F0041D8F4/$File/741—PSG—Basic—rev3—A4—US—Ch.pdf (2003).
J. Depablos, Student Member, IEEE, Virginia Tech; V. Centeno, Member IEEE
Charioui Mohamed
Ngon Ricky
Schweitzer Engineering Laboratories Inc.
Stoel Rives LLP
LandOfFree
Systems and methods for power swing and out-of-step... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods for power swing and out-of-step..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for power swing and out-of-step... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2727707