1. Nick Hatton Associate Staff Engineer
Base Case Basics
Nick Hatton
Associate Staff Engineer
Western Electricity Coordinating Council

2. Western Electricity Coordinating Council
Introductions
From the WECC Staff:
Enoch Davies
Doug Tucker
Nick Hatton
Matt Torgesen
Elena Melloni
Western Electricity Coordinating Council

3. Western Electricity Coordinating Council
Discussion Outline
WECC Base Case Building Procedure
Reporting Data Anomalies
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4. Base Case compilation Schedule
DATE DATA REQUEST MAILED
DATE DATA DUE TO SUB COORD
DATE DATA DUE TO AREA COORD
DATE DATA DUE TO STAFF
STAFF SEND CASE FOR REVIEW
DATE COMMENTS DUE TO SUB COORD
DATE COMMENTS DUE TO AREA COORD
DATE AREA COORDINATOR COMMENTS DUE TO STAFF
STAFF FINALIZE DATE
2017 LSP2-S
07/01/16
07/15/16
07/22/16
08/26/16
09/09/16
09/16/16
09/23/16
09/30/16
10/14/16
2018 LA1-S
08/05/16
08/19/16
10/21/16
10/28/16
11/04/16
11/18/16
HW1
11/23/2016
11/25/16
12/02/16
12/16/16
2027 HS1
12/09/16
12/23/16
12/28/2016
12/30/16
01/06/17
01/20/17
CASE
DATE DATA REQUEST MAILED
DATE DATA DUE TO DATA SUBMITTER
DATE DATA DUE TO WECC STAFF
WECC STAFF SEND CASE FOR REVIEW
DATE COMMENTS DUE TO DATA SUBMITTER
DATE DATA SUBMITTER COMMENTS DUE TO WECC STAFF
WECC STAFF FINALIZE DATE
HW3-OP
11/18/16
12/16/16
01/13/17
02/10/17
02/24/17
03/03/17
03/17/17
LW2-OP
2018 HSP1-OP
03/10/17
03/24/17
04/07/17
04/14/17
04/28/17
HW2
04/21/17
05/19/17
06/02/17
06/09/17
06/23/17
2023 HS1
2018 HS2-OP
06/16/17
07/14/17
07/28/17
08/04/17
09/01/17
2018 LS1-OP
20xx-TEPPC
N/A
09/08/17
09/22/17
09/29/17
10/13/17
2021 LSP1-S
07/21/17
08/18/17
09/15/17
09/29/2017
10/13/2017
10/20/2017
11/03/2017
HW1
10/27/17
11/10/17
11/17/17
12/01/17
2028 HS1
HW1-S
10/06/17
11/03/17
12/15/17
12/29/17
01/05/18
01/19/18
Western Electricity Coordinating Council

5. Base Case Building Power flow
From each Data Submitter 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
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6. Western Electricity Coordinating Council
Extracting Area Data
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7. The Master Tie Line File
Contains 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
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8. Western Electricity Coordinating Council
Tying It All Together
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9. Area Interchange Schedules
BC Hydro Interchange with Northwest
2300 MW
Northwest Interchange with BC Hydro
-2300 MW
Western Electricity Coordinating Council

10. Power Flow Solution and Data Checking
Tie line check
Island check
Edit table checks
Mustfix.p
Checks.p
svdsnap.p
Pathmoni.p
Dchk
Overload check
Branches (Chkrating.p)
Paths (Pathmoni.p)
DCINTMT.p
PSS®E Users Data
InsertLID.p
InsertGENID.p
Baseloader.p
InsertTurbine.p
FillRatingsPSSe.p
Contingencies (Operations Cases)
Replog
PowerWorld
PSS®E Conversion
WECCLF
Case IDV
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11. Questions About Power Flow Compilation?
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12. Base Case Building - Dynamics
The Master Dynamics File (MDF)
Models
Updates in PSLF format
Temporary vs. permanent changes
Condenser and pump check
Unused models
Composition load models
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13. Initializing Dynamics Data
Reading in the MDF
Missing data
Duplicate models
Initialization
Governor errors/warnings
Exciter errors
Other messages
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14. Western Electricity Coordinating Council
Running and Plotting
A no-disturbance run
The alldyns.p disturbance routine
Ringdown
Double Palo Verde Outage (when PDCI flow is N-S)
Loss of PDCI (when PDCI flow is S-N)
Post-transient solution
Disturbances
Metcalf-Moss landing, Tesla-Metcalf
Comanche-Daniels Park
Colorado River – Red Bluff
Hells Canyon – Brownlee
Double Palo Verde Outage
DYTOOLS?
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15. Western Electricity Coordinating Council
Plotting
Plotting the channel file
Searching for the largest deviation (spread)
Plotting Parameter
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16. Western Electricity Coordinating Council
Plotting
Western Electricity Coordinating Council

17. Base Case Building - Comments
Types
Submitted in EPCL, EPC, .m, or by list
Working to include IDV
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?
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19. Reporting Data Anomalies
Master Tie Line File Data
Series Compensation
New Phase Shifters
PSS Exemptions
Dynamics Data
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20. Western Electricity Coordinating Council
Questions
Nick Hatton
Western Electricity Coordinating Council