A Study on Electrical Wire and Floating Tower Interaction for an Offshore Overhead Power Transmission System

Numerical simulation has been carried out to investigate the interaction between electrical wire and floating tower for a new proposed offshore overhead power transmission system. The motion of the TLP-type floating tower is calculated by a potential flow theory method and dynamics of the wire is calculated by a lumped mass method. The numerical model is validated by comparing to available experimental data. In this study, a triangle TLP is newly designed for the floating tower and the interaction of the wire and the floating tower is investigated by a series of numerical simulation. It is found that the wire-floating tower interaction is significantly affected by the wave and wind direction, which should be carefully considered in the safety assessment of the system.