Context

Unlike bottom-fixed offshore wind turbines, floating turbines are characterized by the use of energy transport cable elements deployed between the seabed and surface, at the level of the floater. These elements called dynamic cables are several hundred meters in length and are subjected to motion from the floating support platform, waves and marine currents. They are also very sensitive to bio-fouling. These dynamic cables are also important for other floating ORE technologies: ocean thermal energy conversion, wave, tidal or hybrid platform.

Objectives

To identify the main orientations for the realisation of a test bench dedicated to the tests in real conditions of an in-service monitoring method of medium and high voltage dynamic cables.

Scientific and technical contents

• Estimation of the mechanical characteristics of components
• Numerical modelling of the global hydro-mechanical behaviour of cables
• Experimental characterisation of thermo-mechanical fatigue

Partners and funding

This project was led by Centrale Nantes and France Energies Marines.

The total project budget was €1,003K.

This project received funding from France Energies Marines and its members and partners, as well as French State funding managed by the National Research Agency under the Investments for the Future Programme (ANR-10-IEED-0006-09).

Photo credit: France Energies Marines