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首页> 外文期刊>Journal of Sound and Vibration >Cable connected active tuned mass dampers for control of in-plane vibrations of wind turbine blades
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Cable connected active tuned mass dampers for control of in-plane vibrations of wind turbine blades

机译：电缆连接的主动调谐质量阻尼器，用于控制风力涡轮机叶片的面内振动

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In-plane vibrations of wind turbine blades are of concern in modern multi-megawatt wind turbines. Today's turbines with capacities of up to 7.5 MW have very large, flexible blades. As blades have grown longer the increasing flexibility has led to vibration problems. Vibration of blades can reduce the power produced by the turbine and decrease the fatigue life of the turbine. In this paper a new active control strategy is designed and implemented to control the in-plane vibration of large wind turbine blades which in general is not aerodynamically damped. A cable connected active tuned mass damper (CCATMD) system is proposed for the mitigation of in-plane blade vibration. An Euler-Lagrangian wind turbine model based on energy formulation has been developed for this purpose which considers the structural dynamics of the system and the interaction between in-plane and out-of-plane vibrations and also the interaction between the blades and the tower including the CCATMDs. The CCATMDs are located inside the blades and are controlled by an LQR controller. The turbine is subject to turbulent aerodynamic loading simulated using a modification to the classic Blade Element Momentum (BEM) theory with turbulence generated from rotationally sampled spectra. The turbine is also subject to gravity loading. The effect of centrifugal stiffening of the rotating blades has also been considered. Results show that the use of the proposed new active control scheme significantly reduces the in-plane vibration of large, flexible wind turbine blades.
机译：在现代多兆瓦级风力涡轮机中，风力涡轮机叶片的面内振动是令人关注的。如今，容量高达7.5 MW的涡轮机具有非常大的柔性叶片。随着叶片的长度越来越长，增加的柔韧性导致了振动问题。叶片的振动会降低涡轮机产生的功率，并降低涡轮机的疲劳寿命。在本文中，设计并实施了一种新的主​​动控制策略，以控制通常没有空气动力学阻尼的大型风力涡轮机叶片的面内振动。提出了一种电缆连接的主动调谐质量阻尼器（CCATMD）系统，以减轻平面叶片的振动。为此，开发了基于能量公式的Euler-Lagrangian风力涡轮机模型，该模型考虑了系统的结构动力学以及平面内和平面外振动之间的相互作用，以及叶片与塔筒之间的相互作用，包括CCATMD。 CCATMD位于刀片内部，并由LQR控制器控制。通过对经典的叶片元素动量（BEM）理论进行修改，使涡轮承受湍流的空气动力载荷，其中湍流由旋转采样的光谱生成。涡轮机也承受重力载荷。还已经考虑了旋转叶片的离心硬化的作用。结果表明，所提出的新的主动控制方案的使用显着降低了大型柔性风力涡轮机叶片的面内振动。

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