Atmospheric icing on wind turbines : Modeling and consequences for energy production

Matthew Carl Homola

Atmospheric icing on wind turbines

Modeling and consequences for energy production

ISBN 978-82-471-3082-7 (printed ver.) ISBN 978-82-471-3083-4 (electronic ver.) ISSN 1503-8181

NTNU Norw egian Univ er sity of Scienc e and T echnol ogy Thesis f or the degr ee of phil osophiae doct or F aculty of Inf ormation T echnol ogy, Mathematics, and El ectric al Engineering Department of Engineering Cybernetics

w Carl Homola Doct or al theses at NTNU, 2011:259

Atmospheric icing on wind turbines

Modeling and consequences for energy production

Thesis for the degree of philosophiae doctor Trondheim, September 2011

Norwegian University of Science and Technology

Faculty of Information Technology, Mathematics, and Electrical Engineering

Department of Engineering Cybernetics

Thesis for the degree of philosophiae doctor

Faculty of Information Technology, Mathematics, and Electrical Engineering Department of Engineering Cybernetics

©Matthew Carl Homola

ISBN 978-82-471-3082-7 (printed ver.) ISBN 978-82-471-3083-4 (electronic ver.) ISSN 1503-8181

Doctoral Theses at NTNU, 2011:259 Printed by Tapir Uttrykk

ITK report 2011-8-W

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Nacelle wind speed, NRG Icefree 3 (m/s)

Electric power (kW)

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3 4 5 6 7 8 9 10 11 12 13

0 500 1000 1500 2000 2500

Nacelle wind speed, NRG Icefree 3 (m/s)

Electric power (kW)

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Nacelle wind speed, NRG Icefree 3 (m/s)

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0 20 40 60 80 100 120 140 160 180 200

Nacelle wind speed, NRG Icefree 3 (m/s)

Standard deviation in electric power (kW)

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0 5 10 15 20

0 500 1000 1500 2000 2500

Scatter plot of measured power output, turbine 574, East sector

Normalized nacelle wind speed, KK−Electronics (m/s)

Electric power (kW)

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500 1000 1500 2000 2500

Scatter plot of measured power output, turbine 574, East sector

Nacelle wind speed, NRG Icefree 3 (m/s)

Electric power (kW)

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