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IEC/IEEE 60076-16 Edition 2.0 2018-09 : IEC/IEEE International Standard - Power transformers - Part 16: Transformers for wind turbine applications
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ISBN: 1504451791 Year: 2018 Publisher: New York : IEEE,

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This part of IEC 60076 applies to dry-type and liquid-immersed transformers for wind turbine step-up applications having a winding with highest voltage for equipment up to and including 72,5 kV. This document applies to the transformer used to connect the wind turbine generator to the wind farm power collection system or adjacent distribution network and not the transformer used to connect several wind turbines to a distribution or transmission network. Transformers covered by this document comply with the relevant requirements prescribed in the IEC 60076 standards or IEEE C57 standards.

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Wind turbines.


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Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines
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Year: 2011 Publisher: Firenze, Italy : Firenze University Press,

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This thesis presents a numerical model capable of simulating offshore wind turbines exposed to extreme loading conditions. External condition-based extreme responses are reproduced by coupling a fully nonlinear wave kinematic solver with a hydro-aero-elastic simulator. First, a two-dimensional fully nonlinear wave simulator is developed. The transient nonlinear free surface problem is formulated assuming the potential theory and a high-order boundary element method is implemented to discretize Laplace's equation. For temporal evolution a second-order Taylor series expansion is used. The code, after validation with experimental data, is successfully adopted to simulate overturning plunging breakers which give rise to dangerous impact loads when they break against wind turbine substructures. Emphasis is then placed on the random nature of the waves. Indeed, through a domain decomposition technique a global simulation framework embedding the numerical wave simulator into a more general stochastic environment is developed. The proposed model is meant as a contribution to meet the more and more pressing demand for research in the offshore wind energy sector as it permits taking into account dangerous effects on the structural response so as to increase the global structural safety level.

Keywords

Wind turbines.


Book
Wind turbine manufacturers in the U.S. : locations and local impacts
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Year: 2010 Publisher: [Golden, Colo.] : [National Renewable Energy Laboratory],

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Wind turbines : theory and practice
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ISBN: 9781108777469 1108777465 Year: 2020 Publisher: New York Cambridge University Press

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"On November 8th, 1977, President Jimmy Carter made a televised address to the US nation on the subject of energy. There was a crisis. Political tensions had resulted in an embargo on oil exports from the Middle East, on whose output much of the industrial world then relied. The price of oil, which had been unchanged in real terms since the Second World War, trebled in little over a year. Carter acknowledged America's dependency on oil and outlined a range of measures to encourage energy saving, new fuels, and the production of electricity from renewable sources: for the first time these would include solar and wind power on a large scale"--

Keywords

Wind turbines


Book
Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines
Author:
Year: 2011 Publisher: Firenze, Italy : Firenze University Press,

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Abstract

This thesis presents a numerical model capable of simulating offshore wind turbines exposed to extreme loading conditions. External condition-based extreme responses are reproduced by coupling a fully nonlinear wave kinematic solver with a hydro-aero-elastic simulator. First, a two-dimensional fully nonlinear wave simulator is developed. The transient nonlinear free surface problem is formulated assuming the potential theory and a high-order boundary element method is implemented to discretize Laplace's equation. For temporal evolution a second-order Taylor series expansion is used. The code, after validation with experimental data, is successfully adopted to simulate overturning plunging breakers which give rise to dangerous impact loads when they break against wind turbine substructures. Emphasis is then placed on the random nature of the waves. Indeed, through a domain decomposition technique a global simulation framework embedding the numerical wave simulator into a more general stochastic environment is developed. The proposed model is meant as a contribution to meet the more and more pressing demand for research in the offshore wind energy sector as it permits taking into account dangerous effects on the structural response so as to increase the global structural safety level.

Keywords

Wind turbines.


Book
Assessment of airfoil property sensitivity on wind turbine extreme and fatigue loads : preprint
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Year: 2019 Publisher: Golden, CO : National Renewable Energy Laboratory,

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Wind turbines.


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Built-environment wind turbine roadmap
Authors: --- --- --- ---
Year: 2012 Publisher: Golden, Colorado : National Renewable Energy Laboratory,

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Wind turbines


Book
Turbine life prediction and reliability: design and operation
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Year: 2018 Publisher: [Golden, Colorado] : National Renewable Energy Laboratory,

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Book
Innovative wind turbine : an illustrated guidebook
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ISBN: 1003010881 1000766098 1000765857 1003010881 Year: 2020 Publisher: Boca Raton, FL : CRC press/Taylor & Francis Group,

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"Innovative Wind Turbines is a tribute to the inventors, entrepreneurs, researchers, and companies that through their efforts have envisioned, designed, and constructed models and prototypes for wind energy devices. There are numerous concepts and ideas on ways to convert wind energy into usable energy, and this book examines the innovative, novel, or unusual concepts with numerous photos and historical examples. Primarily, only prototypes that have been constructed are mentioned, along with a few design concepts. The wind turbines are divided by types : horizontal axis wind turbines, ducted wind turbines, vertical axis wind turbines, airborne wind turbines, and more. Features : Includes numerous photos of innovative wind turbines, presents information and examples of multiple rotors, multiple blade designs, includes information and examples of airborne wind energy systems, examines novel blade designs, including whale blades and biomimicry"--

Keywords

Wind turbines


Book
Integrated Nonlinear Wind-Waves Model for Offshore Wind Turbines
Author:
Year: 2011 Publisher: Firenze, Italy : Firenze University Press,

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Abstract

This thesis presents a numerical model capable of simulating offshore wind turbines exposed to extreme loading conditions. External condition-based extreme responses are reproduced by coupling a fully nonlinear wave kinematic solver with a hydro-aero-elastic simulator. First, a two-dimensional fully nonlinear wave simulator is developed. The transient nonlinear free surface problem is formulated assuming the potential theory and a high-order boundary element method is implemented to discretize Laplace's equation. For temporal evolution a second-order Taylor series expansion is used. The code, after validation with experimental data, is successfully adopted to simulate overturning plunging breakers which give rise to dangerous impact loads when they break against wind turbine substructures. Emphasis is then placed on the random nature of the waves. Indeed, through a domain decomposition technique a global simulation framework embedding the numerical wave simulator into a more general stochastic environment is developed. The proposed model is meant as a contribution to meet the more and more pressing demand for research in the offshore wind energy sector as it permits taking into account dangerous effects on the structural response so as to increase the global structural safety level.

Keywords

Wind turbines.

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