Abstract
This study examines the long-term reliability analysis of a floating vertical axis wind turbine (VAWT) situated off the Portuguese coast in the Atlantic Ocean. The VAWT, which consists of a 5-MW 3-bladed H-type rotor developed as part of the EU-FP7 H2OCEAN project, is assumed to be mounted on the OC4 semi-submersible floating platform. Given metocean conditions characterizing the selected turbine site, a number of sea states are identified for which coupled dynamics simulations are carried out using the FloVAWT design tool. Short-term turbine load and platform motion statistics are established for individual sea states that are analysed. The long-term reliability yields estimates of 50-year loads and platform motions that takes into consideration response statistics from the simulations as well as the metocean (wind-wave) data and distributions. Results can be used to guide future floating VAWT designs.
| Original language | English |
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| Title of host publication | ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering |
| Subtitle of host publication | Ocean Renewable Energy |
| Publisher | American Society of Mechanical Engineers(ASME) |
| Number of pages | 7 |
| Volume | 9 |
| ISBN (Electronic) | 9780791856574 |
| DOIs | |
| Publication status | Published - 1 Jan 2015 |
| Event | ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015 - St. John's, Canada Duration: 31 May 2015 → 5 Jun 2015 |
Conference
| Conference | ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015 |
|---|---|
| Country/Territory | Canada |
| City | St. John's |
| Period | 31/05/15 → 5/06/15 |
Keywords
- semi-submersible offshore structures
- vertical axis wind turbines
- short-term turbine load
- platform motion statistics