METHOD TO CONTROL A WIND POWER INSTALLATION WITHOUT GEARS, AND, WIND POWER INSTALLATION WITHOUT GEARS.

摘要

the invention relates to a method for controlling a gearless wind power installation (100), wherein the wind power installation (100) comprises a generator (400) having a stator (404) and a rotor (402) and a air gap (410) between them, which has an air gap thickness, in which the generator (400) is designed as an internal rotor, with the stator (404) as the outer part and the generator rotor (402) as the part internal, or the generator (400) is designed as an external rotor, with the rotor as an external part and the stator as an internal part, this method comprising the following steps: detecting an external temperature as an external temperature ( ta), detect an internal temperature as an internal temperature (ti), calculate a temperature difference as the difference between the external temperature and the internal temperature, and control the generator (400) according to the temperature difference so that a reduction air gap thickness (410) by thermal expansion of the generator (400) is neutralized.