Model Validation on Wind Turbine Generators
Using the 2nd Generation Wind Turbine
Generator Models
Pouyan Pourbeik
[email protected]
WECC REMTF Workshop
Salt Lake City, UT
6/17/14
OVERVIEW
• Standards/Policies:
– 2012 WECC Generator Test Policy
– NERC MOD-27 and MOD-26 Standards
• Guides for Modeling:
– WECC Wind Power Plant Power Flow Modeling Guide
– WECC Wind Power Plant Dynamic Modeling Guide
© 2014 Electric Power Research Institute, Inc. All rights reserved.
2
BACKGROUND
• We started first with validation of single Wind Turbine
Generators (WTG)
• EPRI release the simple public tool WTGMV [1] for
validating single WTG 2nd generation models using
measured disturbance data
Measured:
Vt
P, Q (sim)
Model
Compare
and
optimize
P Q
P,
© 2014 Electric Power Research Institute, Inc. All rights reserved.
3
FIELD MEASURED DATA – Single WTG
© 2014 Electric Power Research Institute, Inc. All rights reserved.
4
VALIDATION SINGEL WTG – Type 3 [2]
Vendor 2
Vendor 2b
Vendor 3
© 2014 Electric Power Research Institute, Inc. All rights reserved.
5
VALIDATION SINGEL WTG – Type 4 [3]
Vendor 1
Vendor 2
Vendor 4
V d 3
Vendor
© 2014 Electric Power Research Institute, Inc. All rights reserved.
6
PLANT LEVEL VALIDATION – THE NEXT STEP
• A wind power plant (per the WECC guide):
© 2014 Electric Power Research Institute, Inc. All rights reserved.
7
POSSIBLE SCENARIOS
© 2014 Electric Power Research Institute, Inc. All rights reserved.
8
SIMPLE CASE
• Quite reasonable for power system stability studies looking
at impact of WPP on grid [4]
[4], [5] & [6]
• Single equivalent feeder model is proven NREL technique
[ ]
[7]
• EPRI’s simple tool (REMV1) will allow for validation of this
case
1. REMV is the second version of WTGMV to be released by EPRI in 2014; will include plant level
validation and PV model validation
© 2014 Electric Power Research Institute, Inc. All rights reserved.
9
MORE COMPLEX CASES NEED MORE R&D
© 2014 Electric Power Research Institute, Inc. All rights reserved.
10
PLANT LEVEL VALIDATION EXAMPLE
© 2014 Electric Power Research Institute, Inc. All rights reserved.
11
PLANT LEVEL MODEL VALIDATION
No detailed data on the WPP controls or WTG controls; just that they are type 4 A
Data from WECC planning case powerflow model
© 2014 Electric Power Research Institute, Inc. All rights reserved.
12
PLANT LEVEL MODEL VALIDATION
PMU data provided by BPA
Measured: P, Q, V, f at 30 samples per second
© 2014 Electric Power Research Institute, Inc. All rights reserved.
13
MEASUREMENT ISSUE
• Apparent measurement error in the PMU data
230 kV
34.5 kV
P, Q, V
P, Q, V
R + jjXt
© 2014 Electric Power Research Institute, Inc. All rights reserved.
14
EXTRAPOLATE BACK TO WTG TERMINALS
PMU data provided by BPA
Measured: P, Q, V, f at 30 samples per second
or
© 2014 Electric Power Research Institute, Inc. All rights reserved.
15
PRELIMINARY RESULTS [8]
Event 1
© 2014 Electric Power Research Institute, Inc. All rights reserved.
Event 2
16
NEXT STEP – Try it in GE PSLF with 2nd
Generation WTG Models
• Using the EPRI REMV tool (in development and will be
released in 2014) we get the model parameters
© 2014 Electric Power Research Institute, Inc. All rights reserved.
17
RUNNING IN GE PSLF
• Now take the data into GE PSLF and using play back see if
model fits
© 2014 Electric Power Research Institute, Inc. All rights reserved.
18
COMPARE TERMINAL VOLTAGE
© 2014 Electric Power Research Institute, Inc. All rights reserved.
19
SUMMARY
• Can get a reasonable fit with EPRI tool, however,
• MW variations are neglected – assuming constant wind
speed
• Have tried all the events for one of the WPP – there
seems to be some variation in control strategy; this
needs to be further investigated with the plant owner
• Using the 2nd generation WTG models in GE PSLF gives
jjust as g
good a result and matches the EPRI tool
• Powerflow solution in GE PSLF does not match perfectly;
PMU measurement issue
© 2014 Electric Power Research Institute, Inc. All rights reserved.
20
On-Going Work
• Try other cases (e.g. type 3 WTG)
• Complete work on EPRI REMV tool and release it
• Try validation tool technique on PV models – have
received PV data from one vendor with which we have
signed an NDA
© 2014 Electric Power Research Institute, Inc. All rights reserved.
21
DEMO EXAMPLE
• Show example of running REMV etc.
© 2014 Electric Power Research Institute, Inc. All rights reserved.
22
REFERENCES
[1] Wind Turbine Generator Model Validation Tool Version 1.0, EPRI Product ID 1024346, August 2012
http://www.epri.com/abstracts/Pages/ProductAbstract.aspx?ProductId=000000000001024346
[2] EPRI Report, “Proposed Changes to the WECC WT3 Generic Model for Type 3 Wind Turbine Generators”, Prepared
under Subcontract No. NFT-1-11342-01 with NREL, Final version 9/27/13
http://www.wecc.biz/library/WECC%20Documents/Documents%20for%20Generators/WECC%20Type%203%20Wind%
20Turbine%20Generator%20Model%20-%20Phase%20II%20012314.pdf
[3] EPRI Report, “Proposed Changes to the WECC WT4 Generic Model for Type 4 Wind Turbine Generators”, Prepared
under Subcontract No. NFT-1-11342-01 with NREL, Final version 1/23/13
http://www.wecc.biz/library/WECC%20Documents/Documents%20for%20Generators/WECC%20Type%204%20Wind%
20Turbine%20Generator%20Model%20-%20Phase%20II%20012313.pdf
[4] Asmine, M.; Brochu, J.; Fortmann, J.; Gagnon, R.; Kazachkov, Y.; Langlois, C. E.; Larose, C.; Muljadi, E.; MacDowell,
J.; Pourbeik, P.; Seman, S. A.; and Wiens, K., “Model Validation for Wind Turbine Generator Models” IEEE
g
2011, p
pages
g 1769 - 1782.
Transactions on PWRS, August
[5] J. Brochu, C. Larose, and R. Gagnon, “Validation of single-and multiple-machine equivalents for modeling wind power
plants,” IEEE Trans. Energy Conversion, Apr. 2010.
[6] C. Larose, “Hydro-Quebec experience with Wind Turbine and Wind Power Plant Model Validation”, EPRI Workshop on
Modeling and Model Validation of Wind Generation, Charlotte, North Carolina USA, Sep 22, 2010
[7] E. Muljadi, C. P. Butterfield, A. Ellis, J. Mechenbier, J. Hochheimer, R. Young, N. Miller, R. Delmerico, R. Zavadil, and
J. C. Smith, “Equivalencing the collector system of a large wind power plant,” in Proc. IEEE Power Eng. Soc. General
Meeting, Montreal, QC, Canada, Jun. 2006.
[8] P. Pourbeik, EPRI Memo, “Analysis of PMU data from a wind power plant provided by BPA”, 8/29/13; issued to BPA,
REMTF and P173.003
© 2014 Electric Power Research Institute, Inc. All rights reserved.
23