Session: 09-02-06: Wind and Wave Energy: Moorings

Submission Number: 156254

Mooring Sensitivity Analysis of Semi-Submersible Platform Delta Float Equipped With 15mw Wind Turbine in the Taiwan Strait 

With advancements in engineering and manufacturing capabilities, and the goal of reducing the Levelized Cost of Energy (LCOE), the evolution of wind turbines are toward larger designs. This study focuses on the influences in dynamic behavior of floating wind turbine system under the challenging environmental conditions of the Taiwan Strait. A semi-submersible platform Delta Float which was designed originally to support a 10 MW turbine was adopted in this study. The platform and mooring system of floating wind turbine system is modified according to the specification of a larger IEA-15 MW turbine.

Using the numerical analysis software OrcaFlex, the dynamic response of the 15 MW floating wind turbine system with semi-submersible platform will be assessed under Taiwan strait conditions. A sensitivity analysis will be conducted considering the coupling effects with wind, wave, and current from different directions under Ultimate Limit State (ULS) to identify the most critical vulnerabilities affecting the current mooring design. This will enhance the design and optimization efficiency.

Ultimately, this research aims to optimize key mooring design factors, including mooring length, unit weight, and material, for a platform supporting a larger turbine. The findings will provide insights into critical parameters to address future trends in the field.

Keywords: mooring optimization, mooring sensitivity analysis, floating wind platform.

Presenting Author: Shun Wen Cheng Department of Hydraulic and Ocean Engineering, National Cheng Kung University

Presenting Author Biography: I am a master’s candidate in the Department of Hydraulic and Ocean Engineering at National Cheng Kung University in Tainan, Taiwan. My research is conducted in the Offshore Structural and Renewable Energy Laboratory (OSREL), which is dedicated to advancing knowledge in offshore renewable energy and marine structural engineering. Under the mentorship of Professor Ray-Yeng Yang, our team rigorously explores these areas through both experimental and simulation methodologies. This work aims to contribute to the development of resilient, efficient offshore systems that support sustainable energy initiatives.