Wind turbine and method for controlling a wind turbine

A wind turbine, comprising:

• a tower;
• a nacelle with a nacelle housing, which is placed on the tower;
• at least one cooling flap, which is configured to close an opening in or on an area of the wind turbine to be cooled;
• and
• at least one temperature-dependent passive actuator, which is coupled to the cooling flap and is configured to activate and open the cooling flap as a function of temperature, so as to enable a heat compensation in the area to be cooled by means of the opening,
• wherein the at least one temperature-dependent passive actuator is configured to change its length without external electrical energy as a function of the temperature to open or close the at least one cooling flap,
• wherein the wind turbine has a normal operating mode, and an error operating mode, in which the wind turbine is not connected to an energy supply network and/or not enough energy is being supplied for active cooling, and in which a temperature exceeds a limit value in the area of the wind turbine, and
• wherein the at least one temperature-dependent passive actuator is configured to open the at least one cooling flap as a function of temperature in the error operating mode, so as to enable the heat compensation in the area of the wind turbine.