Armature for a wind turbine generator and related methods
AssigneeGeneral Electric Renovables Espana, S.L.
InventorsJulio Cesar Urresty, Javier Luque Clavijo
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Abstract
The present disclosure relates to an armature for a wind turbine generator. The generator may be a permanent magnet generator. The present disclosure further relates to methods for operating such armature, generator and wind turbine. A method may include partially short-circuiting the armature windings by closing a first switch and inducing currents in the armature windings by the wind acting on the wind turbine blades.
Claims15
A method for operating a wind turbine having a rotor with one or more wind turbine blades and a generator having an armature, wherein the armature has three or more windings and is configured to provide three or more electrical phases, wherein a first winding is configured to provide a first electrical phase and a second winding is configured to provide a second electrical phase, the second electrical phase and the first electrical phase being out of phase, the method comprising:
- short-circuiting less than all of the armature windings by closing a first switch between an output wire of the first winding and an output wire of the second winding;
- and
- inducing currents in the armature windings by wind acting on the wind turbine blades.
A method for operating a wind turbine having a rotor with one or more wind turbine blades and a generator having an armature, wherein the armature has three or more windings and is configured to provide three or more electrical phases, wherein a first winding is configured to provide a first electrical phase and a second winding is configured to provide a second electrical phase, the second electrical phase and the first electrical phase being out of phase, the method comprising:
- short-circuiting less than all of the armature windings by closing a first switch between an output wire of the first winding and an output wire of the second winding;
- inducing currents in the armature windings by wind acting on the wind turbine blades;
- and
- wherein the armature has two or more winding groups, each group including a neutral wire, and the method further comprises connecting one or more switches between the neutral wires of each group of windings such that all the neutral wires may be in electrical contact.
An armature for a wind turbine generator, the armature comprising:
- three or more windings configured to provide three or more electrical phases, wherein a first winding is configured to provide a first electrical phase and a second winding is configured to provide a second electrical phase, the first electrical phase and the second electrical phase being out of phase;
- each of the windings comprising an output wire;
- and
- a first switch configured to selectively short-circuit less than all of the windings by connecting the output wire of the first winding and the output wire of the second winding.
Dependencies are inferred from the claim text.