Preliminary study of moored power cables

Abstract

New green energy sources deployed at sea in mobile platforms use power cables in order to transport generated energy at sea surface to the bottom. Theses power cables are exposed to the dynamic behaviour of the platform movements due to waves, currents and wind. Preliminary simulations of the static and dynamic behaviour of a power cable moored at small depth are done. The study is focused on a static study of cables about 0.1 m diameter in a catenary mooring under different seabed conditions, bending stiffness and cable length. A preliminary dynamic study is also done: the trajectory, tensions and deformation or curvature of such a power cable under a specific periodic wave conditions characteristics of catalan coast, in Mediterraneum, are shown. The static study gives useful information to be used when a dynamic mooring is build. The simulations are done under OrcaFlex software (license N1594).