Frequency-domain characteristics of aerodynamic loads of offshore floating vertical axis wind turbines

Michael Borg, M. Collu

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    Abstract

    The re-emerging interest in vertical axis wind turbines for floating offshore applications has led to a need to investigate the relatively complex dynamics of such floating offshore structures. Through the use of a coupled model of dynamics this article investigates the frequency-domain characteristics of floating vertical axis wind turbine aerodynamic loads. The impact of platform induced motion on aerodynamic loads is discussed in detail, with results indicating an increase in aerodynamic loads of several orders of magnitude over the range of frequencies usually containing significant wave energy. The subsequent impacts of these observations on system component design are elaborated. (C) 2015 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalApplied Energy
    Volume155
    Pages (from-to)629-636
    Number of pages8
    ISSN0306-2619
    DOIs
    Publication statusPublished - 2015

    Keywords

    • Floating offshore wind turbines
    • Vertical axis wind turbines
    • Frequency domain
    • Coupled dynamics
    • Aerodynamic loads

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