Wind power turbine electric generator cooling system and method, and wind power turbine comprising such a cooling system

摘要

A cooling system (15) for cooling an electric generator (4) of a wind power turbine (1) has : - a first heat exchanger (16) fittable to the wind power turbine (1) to release heat, produced by the electric generator (4), to the outside; - a second heat exchanger (17) fittable to the rotor (7) of the electric generator (4) to receive heat from the rotor (7) by thermal conduction, and which rotates about the axis of rotation (A1) of the rotor (7) with respect to the first heat exchanger (16); and - a closed circuit (19) extending through the first and second heat exchanger (16, 17) to circulate cooling liquid.