Generic Models for Type 3 and 4 Wind Turbine Generators

Pouyan Pourbeikppourbeik@epri.com

WECC REMTF MeetingNovember, 2011

2© 2011 Electric Power Research Institute, Inc. All rights reserved.

OVERALL MODEL STRUCTURE

ElectricalControls

(P and Q control)

Ipcmd

Iqcmd

Pe

PrefVref or

Qref or

pfref Vreg

wg

Qe

wrefPord

Generator/Converter

socI

Pe Qe

Aerodynamics/Drive Train

Pe

wg

Pref

Pm0

q0

w0

Fra

me

of R

efer

ence

Tra

nsfo

rma

tion

Power System

GridModel

I

3© 2011 Electric Power Research Institute, Inc. All rights reserved.

ELECTRICAL CONTROLS

Reactive Power Control

Active Power Control

Current Limit Logic

Iqord

Ipord

Iqcmd

Ipcmd

Pe

Pref

Vref or

Qref or

pfref

Vt

wg

Qe

4© 2011 Electric Power Research Institute, Inc. All rights reserved.

WT4

• Most recent proposal [1] & [2]. Not very different from [3] and only a few changes compared to current WECC model.

• Used Data graciously provided under NDA from Vestas and Siemens Wind Power, respectively.

• Acknowledgements:

– Babak Badrzadeh, Vestas

– Nikolaus Moeller Goldenbaum, Siemens

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THE MODEL

P-CONTROL

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THE MODEL

OPTIONAL DRIVE-TRAIN

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THE MODEL

Q-CONTROL

or

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FIELD MEASURED DATA

ZG

Z1

Z2UG

S1

S2

Grid Testing device PGU

MP1 MP2 MP3

Transformer (optional)

PGU

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RESULTS WITH SIEMENS WTG [2]

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ASIDE (see [2] for details)

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RESULTS WITH VESTAS WTG [1]

• Eight (8) cases studied

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EXAMPLE CASES(RESULTS WITH VESTAS WTG [1])

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EXAMPLE CASES(RESULTS WITH VESTAS WTG [1])

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ABB CASES SHOWN PREVIOUSLY [4] STILL VALID WITH THIS MODEL

Data provide by ABB under NDA to EPRI

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CONCLUSION

• We believe that this model now caters to multiple vendor equipment, and has been shown to give good validation results

• Some minor conventions have to be discussed and finalized

• The “spike” issue need software resolution – several ideas are being pursued

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REFERENCES

[1] P. Pourbeik, “Using Field Data for Model Validation of a Vestas Type 4 Wind Turbine Generator”, Memorandum to IEC TC88 WG27, WECC REMTF and EPRI P173, 11/3/11.

[2] P. Pourbeik, “Example Case of Using Field Data for Model Calibration of a Type 4 Wind Turbine Generator”, Memorandum to IEC TC88 WG27, WECC REMTF and EPRI P173, 10/24/11.

[3] S. Seman, “WT 4 (full converter RMS model) – IEC 61400-27-1; for Working Draft 4.6 – updated version”, 5/4/11.

[4] P. Pourbeik, “The WT4 Model”, presentation made at IEC meeting November 2010 and February 2011 (also presented at WECC REMTF in March 2011).

17© 2011 Electric Power Research Institute, Inc. All rights reserved.

ASIDE – SOLAR PV MODELING (simulation ONLY – not validated)

11 + s Tip

Ir

Ipmax

Ipmin (= 0)

Irmax

Irmin

Ramp Rate (s3)

s4

Vt

11 + s Tpord

Pmax & dPmax

Pmin & dPmin

PordKpp + Kip s

s1

Pmin

Pmax

s2

pflag

0

1

Pref

rmax

rmin

D

0

Pe_

+

+

Freq. Ref.

+

Freq.

dbd

-

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