The present disclosure relates to armature segments for an armature for an electrical machine. An armature segment may comprise a plurality of coils and an electrically insulating supporting structure providing structural support to the plurality of coils. An armature may comprise a plurality of armature segments. The present disclosure further relates to methods for assembling such armature segments and armature.

An electric machine including an annular armature assembly and a non-rotating annular field winding assembly coaxial with the armature assembly and separated by a gap from the armature assembly. The field winding assembly including a field coil support structure having an annular array of recesses formed therein and extending about the field coil support structure. The field winding assembly further including a plurality of superconducting coils, each disposed in a recess of the annular array of recesses. A generator and a method for generating electrical power are disclosed.

An electric machine including an annular armature assembly and a non-rotating annular field winding assembly coaxial with the armature assembly and separated by a gap from the armature assembly. The field winding assembly including a field coil support structure having an annular array of recesses formed therein and extending about the field coil support structure. The field winding assembly further including a plurality of superconducting coils, each disposed in a recess of the annular array of recesses. A generator and a method for generating electrical power are disclosed.

A generator, which may be used in a wind turbine, has a first stationary component carrying a first winding configuration and a second rotating component carrying a second winding configuration. The second rotating component includes a body portion and a plurality of teeth spaced around and extending radially from the body portion. The second winding configuration is arranged in slots defined between adjacent teeth. A housing is arranged around and rotates with the body portion. A heat exchange circuit is arranged on the second rotating component and includes a coolant channel defined in the teeth; a pump; and a heat exchanger arranged on the housing so as to rotate with the housing, the heat exchanger transverse to a rotational direction of the housing.

An electrical machine (1) operating by switching of magnetic flux comprises a first magnetic structure (10), a second magnetic structure (20) and a winding (30). The first and second magnetic structures are arranged movable relative to each other along a predetermined motion path (4) and have respective sections (12,22) interleaved with each other via more than 4 air gaps. The first magnetic structure presents at each air gap a variable magnetic permeability. The second magnetic structure presents at each air gap a variable magnetic permeability and/or permanent magnet poles. Magnetic periodicities of the first and second magnetic structures are equal. For each of the air gaps, most of the magnetic flux passes at each instant in the same direction. The winding has a respective loop (32) provided either around respective section in the direction of the predetermined motion path, or along respective section along an entire closed predetermined motion path.

Provided is an electric generator having a stator, a rotor, a plurality of coils including conductors shaped as a tape, the stator extending axially along a longitudinal axis between a first axial end and a second axial end, the stator including a plurality of slots, the plurality of slots being circumferentially distributed around a longitudinal axis of the stator, each of the coils respectively comprising: two slot portions respectively housed in two slots of the stator, two end-windings axially protruding from stator at the first axial end and a second axial end.

Provided is an electric generator having a stator, a rotor, a plurality of coils including conductors shaped as a tape, the stator extending axially along a longitudinal axis between a first axial end and a second axial end, the stator including a plurality of slots, the plurality of slots being circumferentially distributed around a longitudinal axis of the stator, each of the coils respectively comprising: two slot portions respectively housed in two slots of the stator, two end-windings axially protruding from stator at the first axial end and a second axial end.

An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.

The disclosure relates to a system having an electric machine with a superconductive component cooled using a cryogenic liquid, and in particular to the full utilization of the refrigeration power available from vaporization of the cryogenic coolant. The system also has a fuel cell, in which an operating medium may be reacted to provide electrical energy. The coolant is fed in liquid form to the superconductive component to cool the component, utilizing the vaporization enthalpy of the coolant. The coolant is then fed in gaseous form to a further component of the machine to cool the component, utilizing the heating enthalpy of the coolant. The now heated coolant is fed to the fuel cell, which uses the coolant supplied to the fuel cell as an operating medium and reacts it.