Method and system for AC power grid monitoring

Details Method and system for AC power grid monitoring Method and system for AC power grid monitoring

2005-04-19

2009-08-04

Bahta, Kidest (Department: 2123)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Electrical power generation or distribution system

C702S057000

Reexamination Certificate

active

07571028

ABSTRACT:
A method and system allows for substantially real-time monitoring of the operational dynamics of power plants and other components comprising an AC power grid, by using information collected from a network of power grid frequency detection and reporting devices. The invention allows for the substantially real-time detection and reporting of certain power grid events such as power plant trips.

REFERENCES:
patent: 6496342 (2002-12-01), Horvath et al.
patent: 6671654 (2003-12-01), Forth et al.
patent: 6714000 (2004-03-01), Staats
patent: 6771058 (2004-08-01), Lapinksi et al.
patent: 7043340 (2006-05-01), Papallo et al.
patent: 7110231 (2006-09-01), De La Ree et al.
patent: 7154722 (2006-12-01), Stoupis et al.
patent: 7254001 (2007-08-01), Papallo et al.
patent: 2005/0033481 (2005-02-01), Budhraja et al.
patent: 2007/0150114 (2007-06-01), Gardner et al.
B.J. Kirby et al., “Frequency Control Concerns in The North American Electric Power System,” ORNL/TM-2203/41, paper prepared for the U.S. Department of Energy, Dec. 2002, 19 pages, Oak Ridge National Library, Oak Ridge Tennessee.
Johan Driesen et al., “Time-Frequency Analysis in Power Measurement Using Complex Wavelets,” Jul. 2, 2002, pp. 681-684, IEEE.
Miroslav M. Begovic et al., “Frequency Tracking in Power Networks in the Presence of Harmonics,” Apr. 1993, pp. 480-486, vol. 8, No. 2, IEEE.
A. G. Phadke, “Synchronized Phasor Measurements—A Historical Overview,” Apr. 2, 2002, pp. 476-479, IEEE.
Adly A Girgis et al., “Adaptive Estimation of Power System Frequency Deviation and its Rate of Change for Calculating Sudden Power System Overloads,” IEEE Transactions on Power Delivery, Apr. 1990, pp. 585-594, vol. 5, No. 2, IEEE.
Enetics, “Power Quality Monitoring,” Power Web Demo, downloaded at http://www.enetics.com/app-PQM.html on Jul. 18, 2005.
Softswitching Technologies, “What is the I-Grid?,” web site, downloaded at http://www.softswitch.com/IGrid/tabid/58/Default.aspx on Jul. 18, 2005.
Dennis Erickson et al. “Pacify the Power,” GPSWorld, Apr. 1, 2005, downloaded at http://www.gpsworld.com/gpsworld/article/articleDetail.jsp?id=154868&pageID=1&sk=&date, Questex Media Group.
Electric Power Group, LLC, Area Control Error (ACE) and Frequency Real Time Monitoring System, “Completion Summary Report of Program Software,” prepared for CERTS and NERC, Oct. 18, 2002, downloaded at http://certs.lbl.gov/pdf/ACE.pdf.
Virginia Tech, “Power IT Lab” web site, downloaded at http://www.powerit.vt.edu/main.htm on Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network—GPS/Internet-Based Frequency Monitoring Network (FNET) Design—Abstract of the System”, http://www.powerit.vt.edu/FNET.htm, Jul. 20, 2005.
Yilu Liu, “GPS/Internet Based Frequency Monitoring Network (FNET),” presentation downloaded at http://www.powerit.vt.edu/FNET/ATP—PJM—Liu—VT.pdf.
Virginia Tech, “Frequency Monitoring Network—Overall Architecture,” http://www.powerit.vt.edu/FNET/02-1overalll—architecture.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Communication Architecture,” http://www.powerit.vt.edu/FNET/02-2communication1—architecture.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Information Management,” http://www.powerit.vt.edu/FNET/02-3information—management.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Frequency Disturbance Recorder (FDR) Hardware,” http://www.powerit.vt.edu/FNET/03-1FDR-hardware.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Real-Time Web Display,” http://www.powerit.vt.edu/FNET/04-real-time—web—display.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -FDR Measurement Analysis,” http://www.powerit.vt.edu/FNET/05-1fdr—measurement—analysis.htm, Feb. 25, 2005.
Virginia Tech, “Frequency Monitoring Network -Frequency Wave Propagation,” http:// www.powerit.vt.edu/FNET/05-2-Application-frequency—wave—propgation.htm, Feb. 25, 2005.
Virginia Tech, “Frequency Monitoring Network -Frequency Wave Speed,” http://www.powerit.vt.edu/FNET/05-3-Application-frequency—speed.htm, Feb. 25, 2005.
Virginia Tech, “Frequency Monitoring Network -Ongoing Research,” http://www.powerit.vt.edu/FNET/06-Rersearch—ongoing.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Present Participants”, http://www.powerit.vt.edu/FNET/07-1-Present%20participants.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Sponsors”, http://www.powerit.vt.edu/FNET/08-sponsors.htm, Jul. 20, 2005.
Virginia Tech, “Frequency Monitoring Network -Undergraduates Build Equipment to Monitor Power Grid”, http://www.powerit.vt.edu/FNET/Undergrad—Project.htm, Feb. 25, 2005.
North American Energy Standards, “Policy 1—Generation Control and Performance,” version 2, Oct. 8, 2002, pp. p1-1 to p1-18, downloaded at [http://www.naesb.org/pdf/weq—mos012403w3.pdf].
United States Patent and Trademark Office as International Searching Authority, PCT International Search Report for International application No. PCT/US05/13213, Jul. 7, 2006, pp. 1-6.

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