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Cable Connected Active Tuned Mass Dampers For Control Of In-Plane Vibrations Of Wind Turbine Blades, Breiffni Fitzgerald
Cable Connected Active Tuned Mass Dampers For Control Of In-Plane Vibrations Of Wind Turbine Blades, Breiffni Fitzgerald
Breiffni Fitzgerald
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 …
Active Tuned Mass Dampers For Control Of In-Plane Vibrations Of Wind Turbine Blades, Breiffni Fitzgerald
Active Tuned Mass Dampers For Control Of In-Plane Vibrations Of Wind Turbine Blades, Breiffni Fitzgerald
Breiffni Fitzgerald
This paper investigates the use of active tuned mass dampers (ATMDs) for the mitigation of in-plane vibrations in rotating wind turbine blades. The rotating wind turbine blades with tower interaction represent time-varying dynamical systems with periodically varying mass, stiffness, and damping matrices. The aim of this paper is to determine whether ATMDs could be used to reduce in-plane blade vibrations in wind turbines with better performance than compared with their passive counterparts. A Euler–Lagrangian wind turbine mathematical model based on energy formulation was developed for this purpose, which considers the structural dynamics of the system and the interaction between in-plane …