Abstract
The potential of installing dampers inside the tower of an offshore wind turbine is investigated through simulations. Dampers are installed at the bottom to act on the curvature of the tower, and it is shown that dampers installed in suitable braces have the potential to increase the critical damping ratio of the two lowest tower modes by 1 percent. By using a toggle-brace system, damper stroke is increased, while the damper force is reduced. Finally, by installing the dampers in a symmetric configuration, tuning for maximum damping is approximately independent of the orientation of the rotor, thereby making this installation of dampers feasible.
Original language | English |
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Journal | Energy Procedia |
Volume | 53 |
Issue number | C |
Pages (from-to) | 258-267 |
Number of pages | 10 |
ISSN | 1876-6102 |
DOIs | |
Publication status | Published - 2014 |
Event | EERA DeepWind 2014 - 11th Deep Sea Offshore Wind R&D Conference - Radisson Blu Royal Garden Hotel, Trondheim, Norway Duration: 22 Jan 2014 → 24 Jan 2014 Conference number: 11 http://www.sintef.no/Projectweb/Deepwind_2014/ |
Conference
Conference | EERA DeepWind 2014 - 11th Deep Sea Offshore Wind R&D Conference |
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Number | 11 |
Location | Radisson Blu Royal Garden Hotel |
Country/Territory | Norway |
City | Trondheim |
Period | 22/01/2014 → 24/01/2014 |
Internet address |
Keywords
- Stroke amplifying toggle brace
- Passive damping
- Fixed offshore wind turbine