In the context of the global energy transition, offshore wind energy is a key technology for large-scale decarbonisation. Floating platforms, in particular, allow the exploitation of wind potential in deep waters, where fixed foundation solutions are impractical. This exploratory and preliminary thesis aims to evaluate the effectiveness of an active control system applied to the mooring lines of a semi-submersible platform operating at a depth of 600 metres. Using a simplified two-degree-of-freedom dynamic model developed in MATLAB, the effect of different state-feedback control strategies on the stability and dynamic response of the platform under realistic environmental conditions is analysed. The results indicate that active control can significantly reduce acceleration at the top of the tower, pitching during extreme gusts and fatigue damage to the mooring cables.