Research on Vibration Reduction Control of Wind Turbine Flexible Tower Structure Based on Tuned Mass Dampers
To address the problem of excessive wind-induced vibration in the high-flex tower structure,a lightweight optimization is carried out for a certain type of 2MW wind turbine,and the effect of pendulum tuned mass damper(TMD)on the vibration control of the lightweight tower structure is studied.A three-dimensional model of the optimized tower structure is established,and its natural frequency is calculated by finite element analysis.The pendulum length of the TMD is determined based on its first-order resonance frequency.A simplified dynamic model of the wind turbine and TMD system is proposed to evaluate its vibration reduction performance,and the optimal frequency ratio and damping ratio of the TMD are analyzed.The Runge-Kutta algorithm is used to verify the effect of TMD on various vibration parameters of the tower structure under different mass ratios.The results show that when the TMD is in resonance with the first-order frequency of the tower structure,by adjusting parameters such as damping coefficient and mass ratio,the vibration amplitude of the optimized tower structure can be reduced by up to 70%,effectively suppressing tower vibration and improving the overall robustness of the wind turbine.
wind towerlightweightvibration reduction controldynamic model
万方数据
维普
