1. RTCA Display for Increased Situational Awareness
Presented by Cory Fisher
September 2015

2. Agenda SRP System Model SRP Real Time Sequence (RTS)
Current Operator Control Page
New Operator Control Page (New Features)
Examples (Illustrations of New Control Page)
Current Status
Questions

3. SRP System Model EMS Model - 2200 BUSES
Voltage Levels - 500kV down to the 12kV Level
Neighbors
Arizona Public Service Company (APS)
Western Area Power Administration (WAPA)
Tucson Electric Company (TEP)
Full Arizona footprint (BES) with some lower voltage parallel Neighboring Systems (APS)
Network Model reaches several Buses into…
South California
Nevada
Utah
Colorado
New Mexico

4. SRP REAL TIME SEQUENCE (RTS)
RTS Cycles Every 6 seconds.
State Estimator Runs every 30 seconds
Real-Time-Contingency Analysis runs every 5 minutes
Total of 850 Contingencies (and growing)
All SRP 69kV to 500kV (N-1)
Creditable BES (N-N)
Neighbor’s BES
Open-End Line Contingencies (Closing Angle Exceedances)

5. Current Control Page
All Results from RTCA for both SRP and Non SRP Contingency are displayed on the same page.
No way to sort between SRP and Non SRP exceedances.
No way to sort between (N-1) and (N-N) exceedances.
Results sorted by severity resulting in all the (N-N) contingency dominating the page.

7. New Operator Control Page New Features
Contingency Categories for: (N-1) and (N-N)
SRP Contingencies/SRP Exceedances.
Foreign Contingencies/SRP Exceedances.
SRP Contingencies/Foreign Exceedances.
Foreign Contingencies/Foreign Exceedances.
Open-Ended Line Contingencies
Load Drop Contingencies

8. New Operator Control Page New Features (Continued)
Power-Flow Solutions Quality Indices.
Up And Down Arrows (Indication more items below or above)
Minutes since last CA Run (successful run)

14. New Operator Control Page Status
Currently running in Production in parallel with the Old Page.
All Shifts have received training on the New Page.
Old Page will be turned off by the end of the Month (September).

15. Questions?