1. A wind turbine, comprising: a wind turbine rotor comprising one or more blades, a generator coupled to the wind turbine rotor, generator temperature control means having computation means, and means for providing input to the generator temperature control means, the input being representative of at least one temperature of the generator, wherein the generator temperature control means includes a closed-loop regulation arranged to determine a deviation of the input from at least one desired value, compute the magnitude of at least one control output in dependency of the determined deviation, and feed the at least one control output to at least one controller of the wind turbine in order to reduce the deviation, and the at least one controller of the wind turbine being fed with the at least one control output from the generator temperature control means comprises control means for controlling the operation of the wind turbine in response to the at least one control output by changing one or more operational parameters of the wind turbine, which parameters influence the at least one temperature of the generator.