Direct drive wind turbine with a thermal control system

摘要

A direct drive wind turbine with a thermal control system (15) has a generator (11) with a rotor (12) and a stator (13) and a bearing (5) with an inner ring (6) and an outer ring (7) connecting the rotor (12) and the stator (13) rotatively. The thermal control system (15) comprises a cooling system (16) and a heating system (17). The cooling system (16) comprises at least one heat sink (18) which is in thermal communication with the inner ring (6) of the bearing (5) and a heat dissipater (24) which is in thermal communication with the heat sink (18). The heating system (17) comprises at least one heating element (25) being in thermal communication with the outer ring (7) of the bearing (5).