1. Adding GE WTG Models to WECC Approved Dynamic Model Library
WECC MVWG Meeting
June 2014
Eric Bakie

2. Agenda Review of GE WTG models in WECC MDF and WECC Cases
Discussion of Adding GE WTG models to WECC Approved Model Library

3. Background – SRWG Representation Log
Case
Rep Log
Number of unapproved models in WECC Basecase data
Models Screened
13hs2a
April 2013 54
motor1
14hps1a
July 2013 50
svcwsc
14hs4a
Nov 2013 46
14ls1a
March 2014 40
20hw1
June 2014
Case
Number of gens records
Number of gens records with Turbine Type Data blank or set to unknown
24hs1
4,277
2,369
Next Focus Area – GE WTG Dynamic Records

4. Questions Asked Why are GE WTG Models not on the Approved Model List?
How many GE WTG records are already in the WECC MDF?
How many records represent GE Wind Turbines?
How many records represent non-GE Wind Turbines?
How many records represent solar projects?
Can the GE WTG models be added to the Approved Model List?

5. Criteria for Adding Models to WECC Approved Model List
Model documented and tested
Model available in all three programs
Justification that the model is needed

6. GE WTG Model Benchmarking Documentation
Images: GE Energy

7. GE WTG Model Status
GE WTG Models have been implemented in all three programs
GE PSLF
PSS/E
PowerWorld
GE has indicated that their preference would be to represent GE WTGs with the dynamic models GE developed

8. Model Records in WECC Cases
14hs4a
14hsp1a
14hw2a
14lw1a
14ls1a
15hw3a
15lw2a
24hs1sa
MDF
gewtg 76 56 55 77 73 71
112
133
exwtge 42 33 32 47 48 49 70
ewtgfc 16 10 17 18 21 30
wndtge 28 27 54
A conversion routine to transfer GE WTG models to Phase 2 Generic Models is not available at this time
Inclusion of GE WTG models on the approved model list could reduce the number of models that would need to be converted to Phase 2 Generic Wind Models

9. More Detailed Review of WECC MDF GE WTG Records
Unidentifiable
Generation Type
gewtg model only
Est.
Solar
Type 3
Type 4 48 32 44 42 4
575V/690V
(GE1.5/1.6/2.5)
<575V/690V
>690V
>100kV
(BES) 32 42 52 7
Review suggests that approximately 50 of 133 records are most likely being used to represent Type 3 and Type 4 WTGs

10. Discussion Topics
Adding GE WTG models could potentially reduce the need to convert about 50 records
Does this justify adding the GE WTG models?
Could create the possibility of records not getting reviewed and updated
Increases difficulty of tracking Phase 2 implementation
Not adding the models provides opportunity to start fresh by replacing all wind/solar model records with the new Phase 2 Generic Wind/Solar Models
Improves the chance of developing better modeling representation
Easier to track Phase 2 implementation

11. Modeling of GE Wind Turbine-Generators for Grid Studies Guide
Can a revised GE guide be published that also includes using the Phase 2 Generic Wind Models for modeling GE Wind Turbines with recommended modeling data?

12. Motion
Add GE WTG models to the WECC Approved model library for use to represent GE Wind Turbines Only
Type 3 (DFAG - GE 1.5MW, 1.6MW, 3.6MW)
Type 4 (Full Converter - GE Multi-Megawatt 2.5 MW)

13. Questions Eric Bakie, P.E. SYSTEM PLANNING ENGINEER
Idaho Power | System Planning
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