Investigation of Aerodynamic Braking Devices for Wind Turbine Applications

    Research output: NRELSubcontract Report


    This report documents the selection and preliminary design of a new aerodynamic braking system for use on the stall-regulated AWT-26/27 wind turbines. The goal was to identify and design a configuration that offered improvements over the existing tip brake used by Advanced Wind Turbines, Inc. Although the design objectives and approach of this report are specific to aerodynamic braking ofAWT-26/27 turbines, many of the issues addressed in this work are applicable to a wider class of turbines. The performance trends and design choices presented in this report should be of general use to wind turbine designers who are considering alternative braking methods.
    Original languageAmerican English
    Number of pages131
    StatePublished - 1997

    Bibliographical note

    Work performed by R. Lynette & Associates, Seattle, Washington

    NREL Publication Number

    • NREL/SR-440-22253


    • aerodynamic controls
    • electricity generation
    • renewable energy (RE)
    • spoiler-flap
    • trailing-edge devices
    • wind energy
    • wind turbine design
    • wind turbine rotor design
    • wind turbines


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