Offshore floating intervention platform having a lifting tower with a position compensation device, related assembly and method

An offshore floating intervention platform intended to dock on a floating offshore wind turbine platform to carry out an installation and/or maintenance intervention, the offshore floating intervention platform comprising:

• a floating base, having at least a lower surface intended to be immersed in a body of water;
• at least a wind turbine equipment lifting tower, having at least a lifting unit comprising:
• a mast, a wind turbine equipment elevator configured to vertically move along the mast between a lower loading/unloading position and at least an upper intervention position and
• a lifting actuator, configured to move the wind turbine equipment elevator between the lower unloading/loading position and the at least one upper intervention position;
• characterized in that the at least one lifting unit comprises at least a position compensation device configured to be activated in the loading/unloading position and/or in the at least one intervention position to compensate local vertical displacements between the offshore floating intervention platform and the floating offshore wind turbine platform when the offshore floating intervention platform is docked to the floating offshore wind turbine platform.