Posters - WindEurope Annual Event 2024

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Come meet the poster presenters to ask them questions and discuss their work

We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in the academic community. We look forward to seeing you there!

PO077: An open-source 22MW floating offshore wind turbine (FOWT) design

Gijs Bouman, Project Manager, MARIN


One of the key challenges to accomplish the ambitious growth in energy from floating offshore wind turbines (FOWTs) is a further reduction in costs, for example by increasing wind turbine size and optimising the floater design. MARIN is developing a semi-submersible reference floater, which is intended to be used for open-source, co-operative research together with industry into industrial scale floating offshore wind turbine (FOWT) platforms. The floater is a steel, three-column semi-submersible supporting the 22MW IEA-22-280-RWT turbine. Design screening and optimization was first carried out in the frequency domain in which 250 designs have been analyzed. Followed by a verification of the chosen design through time domain simulations. And as a last validation step basin tests will be carried out in October 2023. It was found that two criteria actively constrain the design space; Platform tilt angle in rated wind speed (wind-dominated) and RNA accelerations in the survival sea state (wave-dominated). The main design drivers were found to be the column diameters, platform footprint (top view dimensions). This can be explained as these parameters strongly affect the platform hydrostatic stiffness and natural frequencies in pitch and roll. The work presented here will teach readers/listeners: * What future, industrialized FOWT platforms are expected to look like. * What design challenges are encountered when designing next generation semi-submersible FOWT platforms, and which parameters drive the response. * How an efficient FOWT design loop could look like, which effects should be taken into account, and how these can be included in different modelling fidelities. * The design and basin test data will be made available to the industry

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