Improved modelling of fatigue loads in wind farms under non-neutral ABL stability conditions

Gunner Chr. Larsen*, Søren Ott, Torben J. Larsen, K.S. Hansen, A. Chougule

*Corresponding author for this work

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    Abstract

    The purpose of this study is improve the predictive capability of the Dynamic Wake Meandering (DWM) model generalized to non-neutral atmospheric boundary layer (ABL) conditions in general and under stable ABL stratification in particular. The emphasis is on rotating wind turbine components, and the model improvement in focus is intimately linked to a newly developed refinement of the classic Monin-Obukhov theory, which, for stable ABL stratification, primary results in less pronounced mean wind shear outside the surface layer, where most modern wind turbines are operating. The model improvements are validated against a huge set of full-scale data, which allows for a one-to-one comparison of wind turbine load simulations and measurements conditioned on ABL stability conditions.
    Original languageEnglish
    Article number072013
    Book seriesJournal of Physics: Conference Series
    Volume1037
    Issue number7
    Number of pages12
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2018
    EventThe Science of Making Torque from Wind 2018 - Politecnico di Milano (POLIMI), Milan, Italy
    Duration: 20 Jun 201822 Jun 2018
    Conference number: 7
    http://www.torque2018.org/

    Conference

    ConferenceThe Science of Making Torque from Wind 2018
    Number7
    LocationPolitecnico di Milano (POLIMI)
    Country/TerritoryItaly
    CityMilan
    Period20/06/201822/06/2018
    Internet address

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