Method of Operating a Wind Turbine and Control system

A method of calibrating a temperature control for one or more electrical cables of a wind turbine, wherein a relationship is determined between a component operating parameter of a component of a power generation system of the wind turbine and a cable temperature of the one or more electrical cables, wherein the one or more electrical cables are configured to transport electrical power generated by the power generation system, the method comprising:

• obtaining a measured component operating parameter of the component of the power generation system, wherein the component operating parameter is a component temperature, and wherein the obtaining of the measured component temperature comprises obtaining a maximum value of the measured component temperature after operation of the wind turbine at an uprated nominal output power for a predetermined amount of time;
• obtaining a measured cable temperature measured at a position of the one or more electrical cables, wherein the obtaining of the measured cable temperature comprises obtaining a maximum value of the measured cable temperature after operation of the wind turbine at the uprated nominal output power for the predetermined amount of time, wherein the obtaining of the measured component temperature and the obtaining of the measured cable temperature including the obtaining of the maximum value of the measured component temperature and the maximum value of the measured cable temperature, respectively, are performed repeatedly for different operating conditions of the wind turbine;
• and
• deriving the relationship between the component temperature and the cable temperature from the measured component temperature and the measured cable temperature.