Research on Vibration Control on Wind Turbine Tower

Research on vibration reduction of wind turbine tower has been successfully completed. The wind turbine towers are generally greatly exposed to vibrations not only from wind but also from the turning moment of the turbine. Such vibrations can cause number of problems on the tower, including malfunction of the generator and structural instability of the tower. A pendulum type TMD with silicon oil damper was put into place . The result showed reduction of the vibration with over 30%.


< 3MW Specification >
- Natural Frequency of tower = 0.3616Hz
- TMD MASS= 5ton
- Damping Ratio= 12.8%


<7MW Specification>
- Natural Frequency of tower = 0.2874Hz
- TMD MASS= 13ton
- Damping Ratio= 10.6%