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A new technique to improve expected AEP estimation in very complex terrain
F.Castellani, G. Franceschini
Department of Industrial Engineering – University of Perugia
Presented at the:
24th ASME Wind Energy Symposium“A new technique to improve expected AEP estimation in very complex terrain” – AIAA-2005-1331
USER MEETING - Tønsberg 27-28 June 2005
FOSSATO DI VICO WIND FARM DEVELOPMENT
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
ANEMOMETERS DATA
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
First AEP estimations results
GWh 769443.18760*3977
0.803319AEP
REAL PRODUCTION
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
TEST FIELD
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
OPERATIONAL CONDITIONS oz
m
umu h
hvv
o
o
z
z10
ln
1
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
Power curves for turbine nr. 1
0
100
200
300
400
500
600
700
800
0 2 4 6 8 10 12 14 16 18 20
wind speed (m/s)
P (
kW
)
certified power curve (air density 1.112 kg/m^3)
measured power curve
ESTIMATED AEP AND REAL PRODUCTION
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
WIND PROFILES
ISO-surfaces 6.5 m/s ISO-surfaces 6.6 m/s
CFD WIND FIELD MODELINGUsing WindSim
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
WIND SIMULATIONS
TERRAIN DATA ROUGHNESS DATA WIND DATA
MANUFACTURERPOWER CURVE
FIRST AEPESTIMATION
WIND FIELD INFORMATION – WIND PROFILES
POWER CURVE CUSTOMIZATION
ENERGY MODULE WITH CUSTOMIZED
POWER CURVE
SECOND AEPESTIMATION
THE POWER CURVE CORRECTION
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
TUNING THROUGH SODAR MEASUREMENTS
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
THE POWER CURVE CORRECTION
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
THE POWER CURVE CORRECTION
dzzvzHD
zvP rr
DH
DH
rr
rr
322
2
2
)(2
227
16
2
1)(
profile) ialP(exponent
profile) lP(numericaR
vP*mv,Rmv,P cercor
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
RESULTS
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
RESULTS
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005
FUTURE WORK
I. Use the new version of Windsim with orthogonalized grids, refinements and smoothing of the terrain
II. Develop a new method to customize the power curve using the 3D wind field information
Francesco CastellaniUniversity of Perugia – Department of Industrial Engineering
Email: [email protected]
USER MEETING - Tønsberg 27-28 June 2005