oscillation detection and mitigation at pjm - naspi · 24/3/2016 · pjm©2016 oscillation...
TRANSCRIPT
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PJM©2016www.pjm.com
Oscillation Detection and Mitigation at PJM
NASPI
International Synchrophasor Symposium
March 24, 2016
Jing Liu
PJM Interconnection
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Outline
• Why Oscillation Detection
• Algorithm Testing
• Testing Methodology & Results
• Oscillation Mitigation at PJM
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Oscillations, Stability, and Synchrophasors
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Two versions of RTDMS with Two Modules
Matlab
Mode Meter
Oscillation Detection
.NET
Mode Meter
Oscillation Detection
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Analysis Approach
.NET
Matlab
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Environment: R&D Lab
Isolated environment
Virtual machines
Highly flexible
Simulated data
Collaborative
Future applications
Data is local
ePDC
RTDMS ServerOriginal (Matlab)
SQL Server
RTDMS ServerWECC (.Net)
SQL Server
RTDMS ClientePDS
CSV 1
CSV 2
CSV n
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Test results
MATLAB Production System @ PJM
• Accurate Mode Meter results
• Oscillation Detection not effective due to difficulties to trigger events
.NET Test System @ PJM
• Similar Mode Meter results
• Oscillation Detection Working, but only alarms based on Energy index, requires baselining of Energy index
• Other bug & issues at the time
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Mode Meter display in RTDMS
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Simulation Results
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Simulation Results
MW swing
Damping decrease & Energy increase
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Alarming
RTDMS PI IEP
Alarming through PJM’s Intelligent Event Processor (IEP).
A situational awareness tool that provides guidance to operators based
upon recognition of a given combination of system topology, alarms,
flow, status, etc, including a feed from EPG’s RTDMS system around
Mode Meter issues.
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PJM Oscillation Detection 2015 Timeline
• Mode Meter algorithm in place within production RTDMS
to help identify oscillatory issues in 2015 Q2
• Operator Training in 2015 Q3 (all dispatch teams,
covered additional PMU basics, video simulation)
• The Intelligent Event Processor (IEP) oscillatory mode
detection rules have been published in production in
alignment with the PJM Transmission Operations
Manual procedure around Oscillation Mitigation
approved and published in December 2015.
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PJM©201613www.pjm.com
Thank You!
Jing Liu
PJM
610-666-4326
mailto:[email protected]