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- Title
Vibration control using double‐response damper and site measurements on wind turbine.
- Authors
Chen, Jun‐ling; Zhao, Yong; Cong, Ou; He, Min‐juan
- Abstract
Summary: Based on the work principles of tuned mass damper and particle damper, an innovative double‐response damper combined tuned mass damper with particle damper is proposed to suppress the wind‐induced vibrations of wind turbine towers in this study. The proposed damper was designed, fabricated, and installed on the top platform of an onshore wind turbine with a rated power output of 1.5 MW. The site measurements were carried out to investigate its control effectiveness. The dynamic responses under both emergency shutdown case and normal operation case were obtained by acceleration transducers installed on the wall near the top platform of the wind turbine tower. Because of the distinguishing dynamic response characteristics under these 2 cases, different data processing methods are used to analyze the measurement data. For emergency shutdown case, the exponential decay method in time domain is applied to obtain the first order modal damping ratio of the wind turbine tower in different measurement phases. For normal operation case, the scatter graph method is used to analyze the control effectivenesses of the damper in different measurement phases. The measurement results show that the damper could not only significantly increase the first order modal damping ratio of the wind turbine tower under the emergency shutdown case but also effectively suppress its wind‐induced vibration under the operation case.
- Subjects
TUNED mass dampers; WIND turbines; TRANSDUCERS; ELECTRONIC data processing; DYNAMICS
- Publication
Structural Control & Health Monitoring, 2018, Vol 25, Issue 9, p1
- ISSN
1545-2255
- Publication type
Article
- DOI
10.1002/stc.2200