Active control of wind turbines through varying blade tip sweep

RENEWABLE ENERGY

卷:131

Article

Boulamatsis, Achilles M.¹  Barlas, Thanasis K.^1,2  Stapountzis, Herricos¹ 

[1] Univ Thessaly Pedion Areos Volos Greece, Lab Fluid Mech & Turbomachinery, Volos, Greece

[2] Tech Univ Denmark DTU, Aerodynam Design Sect, Lyngby, Denmark

关键词: Active control;    Swept blades;    Unsteady lifting line theory;    Blade element momentum theory;   

DOI  :  10.1016/j.renene.2018.07.022

来源: Elsevier

【 摘 要 】

In this research work an introduction to the concept of an actively controlled horizontal axis wind turbine through varying blade tip sweep, is presented. The concept refers to variable tip swept rotor blades, that have the ability to pivot collectively aft, about an axis located at the blade tips. Quantities to be controlled are power production and blade loads. The investigation is carried out with a modified Blade Element Momentum (BEM) model that takes into account variable tip swept rotor blades and the modifications are based on results from a lifting line theory based model. The simulations refer to the 5 MW NREL reference wind turbine that incorporates a suitable controller and preliminary results show beneficial behavior in all of the investigated areas. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

Free