System for manufacturing a precast foundation structure for a wind turbine, related manufacturing method and wind turbine manufactured with said method

A system for manufacturing a precast foundation structure for a wind turbine, wherein the precast foundation structure comprises:

• at least a plinth comprising:
• a surface wherein a tower of the wind turbine is intended to be coupled, the tower defining a vertical axis when the tower is coupled on the surface;
• and
• several adjacent sectors, wherein the several adjacent sectors are at least a first sector and at least a second sector;
• a seal, configured to seal an assembly between the adjacent sectors of the plinth;
• and wherein the system comprises:
• a first mould comprising a main formwork and a secondary formwork, wherein the first mould is configured to cast at least the first sector of the plinth;
• a second mould comprising a main formwork and a secondary formwork, wherein the second mould is configured to cast at least the second sector of the plinth;
• fastening means configured to attach the seal to the sectors of the plinth;
• assembly means configured to carry out the assembly of the sectors of the plinth;
• wherein the secondary formwork of the first mould comprises:
• at least one first inclined surface configured to cast at least one first inclined wall of the first sector of the plinth inclined, in use, with regard to the vertical axis of the tower;
• and in that the secondary formwork of the second mould comprises:
• at least one first inclined surface configured to cast at least one first inclined wall of the second sector of the plinth inclined, in use, with regard to the vertical axis of the tower;
• wherein, in use, the fastening means is configured to attach the seal to the first inclined walls of the sectors of the plinth.