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Demonstration Jonkman
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5/19/2018 Demonstration Jonkman
1/12
Demonstration of Key Features ofFAST with AeroDyn & HydroDyn
NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.
NREL Wind TurbineModeling Workshop
August 7, 2012
UMASS Amherst, MA
Jason Jonkman, Ph.D.Senior Engineer, NREL
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Wind Turbine Modeling Workshop 2 National Renewable Energy Laboratory
Input & Output Files
Linear(.dat)
ADAMS-Spec.(.dat)
Furling(.dat)
Platform(.dat)Primary
(.ipt)
Airfoil(s)(.dat)
Wind(.wnd,.bts)
FAST
Required Optional
TimeSeries
(.out)
PeriodicMatrices
(.lin)
ADAMS
Input Files(.acf,.adm)
AeroDyn
Excitation
Force (.3)
Added-mass and
Damping (.1)
Hydrostatic
Data (.hst)
Required WAMITOutput
Summary(.opt)
Element(.elm)
Summary(.fsm)
Primary(.fst)
Tower(.dat)
Blade(s)(.dat)
FAST-to-ADAMS
Preprocessor
Linearization
Time Simulation
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Wind Turbine Modeling Workshop 3 National Renewable Energy Laboratory
NREL 5-MW Baseline Wind Turbine
Fictitious, but representative,multi-MW wind turbine
Heavily influenced by theREpower 5M prototype &DOWEC project turbines
Specifications include: Blade structural &
aerodynamic properties
Nacelle & hub
Drivetrain
Tower
Control system:
Generator torque
Blade pitch
REpower 5M Wind Turbine
Summary of PropertiesRating 5 MW
Rotor Orientation, Configuration Upwind, 3 Blades
Control Variable Speed, Collective Pitch
Drivetrain High Speed, Multiple Stage Gearbox
Rotor Diameter 126 m
Hub Height 90 m
Cut-In, Rated, Cut-Out Wind Speed 3 m/s, 11.4 m/s, 25 m/s
Cut-In, Rated Rotor Speed 6.9 rpm, 12.1 rpm
Rated Tip Speed 80 m/s
Overhang, Shaft Tilt, Precone 5 m, 5, 2.5
Rotor Mass 110,000 kg
Nacelle Mass 240,000 kg
Tower Mass 347,460 kg
Coordinate Location of Overall CM (-0.2 m, 0.0 m, 64.0 m)
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Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Onshore, Steady Wind 8 m/s, No Control
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Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Onshore, Steady Wind 8 m/s
5/19/2018 Demonstration Jonkman
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Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Onshore, Steady Wind 18 m/s
5/19/2018 Demonstration Jonkman
7/12Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Onshore, Turbulent Wind 18 m/s
5/19/2018 Demonstration Jonkman
8/12Wind Turbine Modeling Workshop 8 National Renewable Energy Laboratory
OC3-Hywind Spar Buoy
Developed within IEA Wind Task23 OC3 project
Statoil supplied data for 5-MW
Hywind conceptual design
OC3 adapted spar to support theNREL 5-MW turbine:
Rotor-nacelle assembly unchanged
Tower adapted to conform to spar
Overall mass, CM, & inertias made
consistent to Statoils Hywind
Mooring system simplified
Torque & pitch controller modified to:
Maintain positive aerodynamicdamping
Minimize rotor speed excursions OC3-Hywind Model
5/19/2018 Demonstration Jonkman
9/12Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Offshore, Steady Wind 8 m/s, Period Waves 2 m, 8 s
5/19/2018 Demonstration Jonkman
10/12Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Offshore, Turbulent Wind 18 m/s, Irregular Waves 6 m, 10 s
5/19/2018 Demonstration Jonkman
11/12Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute Battelle
Offshore, Pitch Free Decay, No Aerodynamics, Still Water
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Questions?
Jason Jonkman, Ph.D.
+1 (303) 384 [email protected]
NREL is a national laboratory of the U S Department of Energy Office of Energy Efficiency and Renewable Energy operated by the Alliance for Sustainable Energy LLC