Abstract: A control method configured to control the preload of a bearing includes estimating the preload on the bearing; comparing the estimated preload with a predetermined acceptance range; and correcting the preload on the bearing when the preload is outside the acceptance range.

Abstract: A control method configured to control the preload of a bearing includes estimating the preload on the bearing; comparing the estimated preload with a predetermined acceptance range; and correcting the preload on the bearing when the preload is outside the acceptance range.

Abstract: A wind power turbine control method, the wind power turbine having an electric machine, in turn having a stator, a rotor rotatable about an axis of rotation with respect to the stator, and a mechanical bearing assembly configured to couple the rotor in rotary manner to the stator; the stator having at least one winding to interact electromagnetically with the rotor; and the control method including the steps of: estimating at least one quantity selected from a group including a distance between the rotor and the stator, the variation over time in the distance, and misalignment between the rotor and stator; defining a localized additional magnetic force as a function of the selected quantity; and regulating the selected quantity using the localized additional magnetic force defined.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: A method of determining the magnetization level of permanent magnets of an electric machine, whereby a probe winding is placed in an electric machine having a stator with a plurality of stator winding, and a rotor with a plurality of permanent magnets; the probe winding is fixed with respect to the stator and links a magnetic flux produced by the permanent magnets; the rotor is rotated at an angular speed; an induced electric quantity is determined at terminals of the probe winding in response to passage of the permanent magnets; and the magnetization level of the permanent magnets is determined on the basis of the induced electric quantity detected.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.

Abstract: An electric generator of a wind power turbine has a stator having a cylindrical shell; a number of segments arranged, along the inner face of the cylindrical shell, in a circumferential configuration; and a number of adjustable locking devices located between the segments to press the segments together circumferentially and lock the segments in a given position.

Abstract: A wind power turbine having a pylon; a nacelle; an electric generator fitted to the nacelle to produce electric energy; a frequency converter housed inside the pylon; and a cooling system for cooling the frequency converter, and which has an open-loop circuit provided with a conduit, and at least one cooling fin thermally connected to the frequency converter and housed in the conduit.