Cooling assembly for an aircraft provided with a fan

A cooling assembly including:

• a conduit including a side wall, an air intake and an air outlet allowing circulation of an air flow in the conduit, and
• a fan comprising:
• a rotating electric machine comprising:
• a rotary shaft,
• a ventilation wheel secured to the shaft,
• a power supply module able to connect the rotating electric machine to an electric power supply network providing a three-phase electric network, the power supply module including a transformation device able to adapt the three-phase electric current provided by the three-phase electric network for powering the rotary electric machine and including:
• three input terminals, the three input terminals being connected to the three-phase electric network,
• at least three output terminals, the at least three output terminals being connected to the rotating electric machine,
• three distinct single-phase self-transformers which are magnetically decoupled from one another, each single- phase self-transformer being connected to one of the input terminals and at least to one of the output terminals and being able to modify the voltage values of an input single-phase alternating current on the corresponding input terminal for obtaining a modified output current on said or each output terminal corresponding to the single-phase self-transformer, each self-transformer surrounding the side wall of the conduit.