Posters
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 industry and the academic community.
PO161: Assessing the Feasibility of Three-Column Semi-Submersible Floaters for 15MW+ Offshore Wind Turbines
Zhichao Fang, Senior Naval Architect, Wison New Energies Co., Ltd.
Abstract
Large modern offshore turbines pose new challenges for floating substructures. They demand stricter hydrostatic and hydrodynamic performance to secure energy yield, as well as higher structural stiffness to avoid resonance. The applicability of the classical three-column semi-submersible has therefore been questioned, with doubts about its scalability beyond 15MW. The present study, based on a 16MW turbine from a Chinese OEM, shows that the three-column semi-submersible remains a feasible solution for large turbines. By carefully selecting the operating draft and pontoon dimensions, satisfactory motion performance can be achieved. A stiff-stiff structural regime is ensured through optimized pontoon and bracing arrangements. Equally important are the practical project advantages. The offset turbine column allows the unit to be berthed directly alongside the quayside, greatly reducing lifting requirements during turbine integration. From a project execution perspective, this widens the choice of port infrastructure and installation equipment. Initial assessments suggest turbine installation cost savings of up to 25% compared with concepts requiring ultra-heavy lifting equipment. While scaling beyond 16MW should be approached with caution, the three-column semi-submersible continues to offer developers a practical and competitive foundation option, particularly for projects constrained by installation facilities or seeking cost-efficient construction.
No recording available for this poster.
