Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Semi-active fuzzy control of edgewise vibrations in wind turbine blades under extreme wind
Abstract In this paper, a new semi-active fuzzy control strategy is proposed for controlling edgewise vibrations of wind turbine blades under extreme wind. The control forces are provided by magnetorheological (MR) dampers mounted inside blades and appropriately manipulated according to a prescribed fuzzy control law. The fuzzy control system produces the required voltage to be input to the damper so that a desirable damper force can be produced. The finite element model of wind turbine with MR dampers is formulated, which considers the blade-tower coupling. Aerodynamic loads corresponding to a combination of steady wind and the effect of turbulence are computed by applying the blade element momentum (BEM) theory. Furthermore, the influence of position and number of the controllers is taken into account. The results of numerical simulations show that the proposed semi-active fuzzy control system can be beneficial in reducing the vibrations of wind turbine blades under extreme wind.
Highlights A new control strategy for reducing edgewise vibrations of blades is proposed. The control strategy relies on MR damper and fuzzy control law. Proper position and number of controller achieve greater control effects. The control strategy is still efficient when the wind changes direction.
Semi-active fuzzy control of edgewise vibrations in wind turbine blades under extreme wind
Abstract In this paper, a new semi-active fuzzy control strategy is proposed for controlling edgewise vibrations of wind turbine blades under extreme wind. The control forces are provided by magnetorheological (MR) dampers mounted inside blades and appropriately manipulated according to a prescribed fuzzy control law. The fuzzy control system produces the required voltage to be input to the damper so that a desirable damper force can be produced. The finite element model of wind turbine with MR dampers is formulated, which considers the blade-tower coupling. Aerodynamic loads corresponding to a combination of steady wind and the effect of turbulence are computed by applying the blade element momentum (BEM) theory. Furthermore, the influence of position and number of the controllers is taken into account. The results of numerical simulations show that the proposed semi-active fuzzy control system can be beneficial in reducing the vibrations of wind turbine blades under extreme wind.
Highlights A new control strategy for reducing edgewise vibrations of blades is proposed. The control strategy relies on MR damper and fuzzy control law. Proper position and number of controller achieve greater control effects. The control strategy is still efficient when the wind changes direction.
Semi-active fuzzy control of edgewise vibrations in wind turbine blades under extreme wind
Chen, Jianyun (Autor:in) / Yuan, Chenyang (Autor:in) / Li, Jing (Autor:in) / Xu, Qiang (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 147 ; 251-261
19.10.2015
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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