Stator arrangement, generator, wind turbine, and method for positioning a stator arrangement
AssigneeSiemens Aktiengesellschaft
InventorHenrik Stiesdal
Life of this patent
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Abstract
A stator arrangement of an electric machine, particularly a generator in a wind turbine is provided. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. During normal operation the stator arrangement is non-rotatably connected to a stationary part of the generator. The stator arrangement may be released from the non-rotatable connection to the stationary part of the generator so as to be revolved relative to the stationary part of the generator. A method for positioning such a stator arrangement is also provided.
Claims9
A stator arrangement of an electric machine set up in a cylindrical form, wherein
- the stator arrangement is radially surrounded by a rotatably mounted rotor arrangement,
- during normal operation the stator arrangement is non-rotatably connected to a stationary part of the electric machine,
- the stator arrangement is releasable from the non-rotatable connection to the stationary part of the generator so as to be revolved relative to the stationary part of the generator,
- the stator arrangement is interlocked with a rotating part of the electric machine causing the stator arrangement to revolve when the rotating part rotates, and
- the interlocking of the stator arrangement with the rotating part is performed by applying direct current to coils intended for electro-magnetic induction of one of the stator arrangement and rotor arrangements so that the stator arrangement is locked with the rotating part via electro-magnetic force.
A method for positioning a stator arrangement of an electric machine set up in a cylindrical form, the stator arrangement being radially surrounded by a rotatably mounted rotor arrangement, comprising:
- interlocking the stator arrangement with a stationary part of the electric machine so that during normal conditions the stator arrangement is fixed to the stationary part such that the stator arrangement is non-rotatably connected to the stationary part;
- releasing the interlocking and interlocking the stator arrangement with a revolving part so that during non-normal conditions so that the stator arrangement is rotatable around the stationary part, and
- wherein the interlocking of the stator arrangement with the rotating part comprises applying direct current to coils intended for electro-magnetic induction of one of the stator arrangement and rotor arrangements so that the stator arrangement is locked with the rotating part via electro-magnetic force.
Dependencies are inferred from the claim text.