Abstract: A wind turbine having an electrical power generation assembly and a control device for controlling the power generation assembly is provided, the electrical power generation assembly including a generator, at least one converter connected to the generator, and an overheating detection device, wherein the overheating detection device includes—at least two temperature sensing elements at different positions of the power generation assembly, wherein the temperature sensing elements are connected in series along a signal line to provide a common sensor signal and are each adapted to indicate the exceeding of a respective critical temperature at their position in the common sensor signal, and—a detection unit for evaluating the common sensor signal, which is connected to the signal line.

Abstract: Provided is a wind turbine including multiple components generating heat during operation of the wind turbine and a liquid cooling system, wherein the multiple components are thermally coupled by a liquid coolant cycle of the liquid coolant system to an ambient heat exchanger of the liquid coolant system, the ambient heat exchanger being arranged to exchange heat between a liquid coolant contained in the liquid coolant cycle and ambient air, whereby the liquid coolant system includes a heat pump having a cooling operation mode, wherein the heat pump is arranged in the coolant liquid cycle such that the liquid coolant of the liquid coolant cycle is cooled, when the heat pump is operated in the cooling operation mode. Also provided is a method for operating the wind turbine.

Abstract: A method of controlling the operation of a wind turbine is provided. The wind turbine includes a rotor, a generator and at least one heat generating component. The method includes obtaining a temperature of the heat generating component; determining the presence of a predetermined increase of the temperature of the heat generating component; and upon determining the presence of the predetermined temperature increase, controlling the rotational speed of the generator so as to increase the rotational speed of the generator while not increasing the electrical power output of the generator or while increasing the electrical power output of the generator at a smaller proportion than the increase in rotational speed of the generator so as to reduce the level of electrical current in the generator.

Abstract: A method of controlling the operation of a wind turbine is provided. The wind turbine includes a rotor, a generator and at least one heat generating component. The method includes obtaining a temperature of the heat generating component; determining the presence of a predetermined increase of the temperature of the heat generating component; and upon determining the presence of the predetermined temperature increase, controlling the rotational speed of the generator so as to increase the rotational speed of the generator while not increasing the electrical power output of the generator or while increasing the electrical power output of the generator at a smaller proportion than the increase in rotational speed of the generator so as to reduce the level of electrical current in the generator.