On-line Event Location Determination and Reporting Using Distribution Level Synchro-Phasor Measurement
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1 On-line Event Location Determination and Reporting Using Distribution Level Synchro-Phasor Measurement March 7, 2007 NASPI Yilu Liu and Robert M. Gardner of Virginia Tech James Ritchie Carroll of TVA ,
2 Page 2 Partial list of FDR locations
3 Acknowledgement FNET Research sponsors Special thanks to our FDR host universities, companies, high Schools, and individuals all over US and Canada! The FNET Team Summer of 2007
4 Page 4 FL Event detected at 13:09:05 EST
5 FNET Angle Measurements at 13:08 13:11 EST 2008/2/26 Normalized Angle FDR42 - FSU FDR523 - TTU3 FDR526 - SOCO FDR20 - TVA2 Angle (degree) /2/26 De-trended Angle FDR42 - FSU FDR523 - TTU3 FDR526 - SOCO :08:05 18:08:37 18:09:10 18:09:42 18:10:15 18:10:47 18:11:20 Time (UTC) Angle (degree) :09:05 18:09:07 18:09:09 18:09:11 18:09:13 18:09:15 18:09:17 18:09:19 Time (UTC) Page 5
6 min plot: 10:06-10:36 The EI system islanding frequency data 9 minutes 2007/9/18 10-point median FDR3 - ARI FDR4 - VT FDR38 - ISONE FDR40 - StPaul FDR41 - Winnipeg FDR42 - FSU FDR43 - Bismarck FDR503 - Danbury FDR513 - PSU FDR518 - NERC FDR523 - TTU FDR500 - Chicago FDR502 - TORONTO 60.6 Frequency (Hz) :00:00 10:05:43 10:11:26 10:17:09 10:22:51 10:28:34 10:34:17 10:40:00 Time (UTC) Page 6
7 EI Separation, FNET Angle Data 14 x /9/18 Voltage Angle Angle (degree) FDR3 - ARI FDR4 - VT FDR38 - ISONE FDR40 - StPaul FDR41 - Winnipeg FDR42 - FSU FDR43 - Bismarck -2 10:15:00 10:19:17 10:23:34 10:27:51 10:32:09 10:36:26 10:40:43 10:45:00 Time (UTC) Page 7
8 Angles of 3 FDRs and 1 PMU 14 x /9/18 Voltage Angle Angle (degree) StPaul W innipeg Bismarck PMU Page :20:00 10:21:26 10:22:51 10:24:17 10:25:43 10:27:09 10:28:34 Time (UTC)
9 Voltage of FDR and PMU(Winnipeg) 2007/9/18 Voltage FDR PMU Voltage (p.u.) :21:07 10:21:15 10:21:22 10:21:30 10:21:38 10:21:46 10:21:53 10:22:01 Time (UTC) Page 9
10 Disturbance Propagation from Simulations Movie Frequency Turkey point trip simulation Angle changes North Anna plant trip Simulation Page 10
11 On-line Event Location 2005/9/29 10-point average Frequency (Hz) FDR18 - NY FDR7 - MISS FDR11 - CALV FDR13 - MidWest FDR26 - Louisville FDR28 - METC Virginia Tech has a Patent pending on the concept of using frequency time delay of arrival in determining the location of the source of power system disturbances :12:38 12:12:43 12:12:47 12:12:52 12:12:57 Time (EST) Page 11
12 Page 12 Event of Oconee, 4/2/ :35:58 EAST(10-points median) NY UMR VT MISS UFL Calvin TVA3_Nashville ROA Toronto RPI METC UnivKentucky Oconee Time 17:35:43 Frequency (Hz) 17:35:43 17:35:44 17:35:45 17:35:46 17:35:47 17:35:48 17:35:49 17:35:50 17:35:50 17:35:51 17:35:52 17:35:53 17:35:54 17:35:55 17:35:56 17:35:57 17:35:58 17:35:59 17:35:59 17:36:00 17:36:01 17:36:02 17:36:03 17:36:04 17:36:04 17:36:05 17:36:06 17:36:07 17:36:08 17:36:09 17:36:10 17:36:11 17:36:11 17:36:12 17:36:13 17:36:
13 Summary of On-line Functions On-line event trigger and MW estimation On-line event location estimate and reporting On-line oscillation trigger On-line oscillation analysis and reporting tool On-line event movie generation (coming soon) Information Delivery: - Automatic alert (to FNET user group) - Automatic web display (mostly Internal) FNET public site: Page 13
14 Disturbance Propagation Playback from FNET and PMU measurements event Actual measurement data reply - Frequency Page 14 Click to play the movie
15 Disturbance Propagation Playback from measurements Page 15 Measurement data reply Relative Angle Click to play the movie
16 Page 16
17 Page 17
18 Automatic Report Generation Events occur at all times Oscillations Generation Trips Load Shedding Many analysis/display routines can be automated FNET Server Virginia Tech FDR N User WEB Data Synchronization Data Buffering Missing Data Detection Data Screening Oscillation Trigger Generation Load Mismatch Trigger Data Storage FDR 2 Event Type Report Generator (Server or Slave) Data Capture FDR 1 User Duplicate Data Backup/Ancillary Servers Data Storage Page 18
19 START FNET Event Reporting Data from Server Mahalanobis Distance Calculations Data χ 2 2,97.5% χ 2 2,99.0% χ 2 2,99.5% Plot of Frequency Data Vectors F 1 vs. F Frequency Response of 10th Order Butterworth Filter Event Validation Acausal Filtering (Butterw orth, etc.) Detailed Event Confirmation F j New Data µ * Amplitude F i Frequency, Hz END End Reporting if False Alarm Alarming E m ail, Visual, Audio Data Screening Bad Data Record Log Bad Data for Future Development Interconnection Analysis Interconnection Plots Interconnection Statistics MW Estim ate Analysis Performed on Collective Interconnection Data Individual Unit Analysis Report Com pilation (M ATLAB, Crystal, etc.) Spreadsheet Data Data Stored in User Friendly Form at (Excel, Text Files, etc.) Report Posting Event Report Web Server HTML Files, etc. Web posting for M ultiple User Access Page 19 END Report Generation Complete
20 EI Separation Report FL Blackout Report Report download site at Page 20
21 FNET interface at TVA SPDC James Ritchie Carroll One interface Multiple protocol implementation Interface remains the same for upper level application Easy to add new protocol implementation supporting upcoming protocol Page 21
22 Page 22
23 Page 23 Interface Technique
24 Page 24 FDR Data Flowing to SPDC
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