1. Jon Jensen Associate Staff Engineer
Base Case Basics
Jon Jensen
Associate Staff Engineer
Western Electricity Coordinating Council

2. Western Electricity Coordinating Council
Purpose
“People who work together will win, whether it be against complex football defenses, or the problems of modern society.”
-Vince Lombardie
“If everyone is moving forward together, then success takes care of itself.”
-Henry Ford
Western Electricity Coordinating Council

3. Western Electricity Coordinating Council
Introductions
From the WECC Staff:
Doug Tucker
Enoch Davies
Jon Jensen
Nick Hatton
Western Electricity Coordinating Council

4. Western Electricity Coordinating Council
Discussion Outline
WECC Base Case Building Procedure
Reporting Data Anomalies
Western Electricity Coordinating Council

5. Base Case compilation Schedule
DATE DATA REQUEST MAILED
DATE DATA DUE TO SUB COORD DATE L&R INFO DUE TO SUB COORD
DATE DATA DUE TO AREA COORD
DATE DATA DUE TO STAFF
STAFF SEND CASE FOR REVIEW
DATE COMMENTS DUE TO AREA COORD
DATE AREA COORDINATOR COMMENTS DUE TO STAFF
STAFF FINALIZE DATE
2015 HS4-OP
07/18/14
08/01/14
08/08/14
09/12/14
09/26/14
10/10/14
10/17/14
10/31/14
2015 LS1-OP
08/15/14
08/22/14
10/24/14
11/14/14
HW1
10/03/14
11/07/14
11/21/14
11/28/14
12/05/14
12/19/14
2025 HS1
12/12/14
12/26/14
01/02/15
01/09/15
01/23/15
HW3-OP
01/16/15
01/30/15
02/13/15
02/20/15
03/06/15
LW1-OP
02/27/15
03/20/15
2016 HSP1-OP
02/06/15
03/13/15
03/27/15
04/10/15
04/17/15
05/01/15
HW1
04/24/15
05/08/15
05/15/15
05/22/15
06/05/15
2021 HS2
04/03/15
05/29/15
06/12/15
06/19/15
06/26/15
07/10/15
2016 HS3-OP
07/03/15
07/17/15
07/24/15
07/31/15
08/14/15
2016 LS1-OP
08/28/15
2018 HS1-S
09/11/15
09/25/15
10/02/15
10/16/15
20XX-Regional
08/07/15
08/21/15
10/30/15
11/06/15
11/20/15
HW1
11/27/15
12/04/15
12/18/15
2026 HS1
12/11/15
12/25/15
01/01/16
01/08/16
01/22/16
Western Electricity Coordinating Council

6. Base Case Building Power flow
From each AC we should receive the following:
Area Specific power flow data
L&R spreadsheet
Any dynamic model changes/updates
Any tie line changes (must be coordinated!!!)
List of significant changes
Any additional info that will help with base case compilation
Western Electricity Coordinating Council

7. Western Electricity Coordinating Council
Creating a Raw Case
Western Electricity Coordinating Council

8. The Master Tie Line File
Contains raw data for the following:
Branches
Transformers
Line connected shunts
DC lines (Bus, Line, DCC)
Transformer impedance tables
Interface data (Paths)
Branch interface data
Zones
Owners
Area Interchange
Western Electricity Coordinating Council

9. Western Electricity Coordinating Council
Tying It All Together
Western Electricity Coordinating Council

10. Area Interchange Schedules
BC Hydro Interchange with Northwest
2300 MW
Northwest Interchange with BC Hydro
-2300 MW
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11. Power Flow Solution and Data Checking
Island check
Tie line check
Edit table checks
Mustfix.p
Checks.p
svdsnap.p
Pathmoni.p
Tappfixer.p
Dchk
Baseloader.p
InsertTurbine.p
Overload check (Line & Path)
Solution check
InsertLID.p
InsertGENID.p
FillRatingsPSSe.p
DCINTMT.p
Replog
PowerWorld
PTI Conversion
Western Electricity Coordinating Council

12. Questions About Power Flow Compilation?
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13. Base Case Building - Dynamics
The Master Dynamics File (MDF)
Models
Updates in PSLF format
Temporary vs. permanent changes
Motor load modeling
Condenser and pump check
Unused models
Composition load models
Western Electricity Coordinating Council

14. Initializing Dynamics Data
Reading in the MDF
Missing data
Duplicate models
Modstat.p
Built into PSLF 17.0
Initialization
Governor errors/warnings
Exciter errors
Western Electricity Coordinating Council

15. Western Electricity Coordinating Council
Running and Plotting
A no-disturbance run
The alldyns.p disturbance routine
Ringdown
Double Palo Verde Outage
Loss of PDCI
Post-transient solution
Disturbances
Metcalf-Moss landing, Tesla-Metcalf
Comanche-Daniels Park
Colorado River – Red Bluff
Hells Canyon – Brownlee
N-0 Overloads-Operating cases
Western Electricity Coordinating Council

16. Western Electricity Coordinating Council
Plotting
Plotting the channel file
Searching for the largest deviation (spread)
Plotting parameters
Western Electricity Coordinating Council

17. Base Case Building - Comments
Types
Submitted in EPCL, EPC, .m, or by list
MUST be made to review case
Changes to tie lines must be coordinated
Extensive data changes
Western Electricity Coordinating Council

18. Questions about Dynamics and Comment Submission?
Western Electricity Coordinating Council

19. Reporting Data Anomalies
Master Tie Line File Data
Series Compensation
New Phase Shifters
Additional Solution Tools
Any Area Substitution Data
PSS Exemptions
Dynamics Data
Study Report Suggestions
Western Electricity Coordinating Council

20. Western Electricity Coordinating Council
Questions
Jon Jensen
Western Electricity Coordinating Council