Design and Feasibility Study of an Anti-Roll Tank for Floating Offshore Wind Turbine Foundation

Abstract

The goal of this master’s thesis is to investigate the feasibility of an antiroll/ pitch tank for Ideol’s floating offshore wind turbine foundation, the 1X MW SQUATINA project, and Ideol’s offshore substation, the Optifloat project. The roll and pitch responses of a FOWT foundation are important to consider and mitigate, as they impact the loads in the wind turbine components, transition piece, hull and mooring system components. An anti-roll/pitch tank would conceptually reduce the dynamic response of the foundation to the waves. The desired effect would be replacing the damping plates, which have detrimental effects on drift loads and structure design. Limiting the floater’s motion might also improve production performance, or influence the sizing of the mooring system.