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Synchronous motor rotor and method for supporting superconductive rotor winding thereon

A technology of coil winding and superconducting coil, which is applied in the usage of superconductor elements, the shape/style/structure of winding conductors, windings, etc., can solve the problems of high cost, complexity, requiring too many components, etc., to achieve increased energy density, The effect of reducing weight and size

Inactive Publication Date: 2009-05-27
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these coil support systems have serious problems, such as being costly, complex and requiring too many components

Method used

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  • Synchronous motor rotor and method for supporting superconductive rotor winding thereon
  • Synchronous motor rotor and method for supporting superconductive rotor winding thereon
  • Synchronous motor rotor and method for supporting superconductive rotor winding thereon

Examples

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Embodiment Construction

[0026] FIG. 1 schematically shows a synchronous generator 10 with a stator 12 and a rotor 14 . The rotor comprises field winding coils mounted within the cylindrical rotor vacuum cavity 16 of the stator. The rotor is fitted within the rotor vacuum cavity of the stator. As the rotor rotates within the stator, the rotor and rotor coils generate a magnetic field 18 (shown in dashed lines) that moves / turns through the stator and generates current in the stator coil windings 19 . This current is output by the generator as electrical energy.

[0027] The rotor 14 has a generally longitudinally extending axis 20 and a generally solid rotor core 22 . The solid core 22 has a high magnetic permeability and is usually made of a ferromagnetic material such as iron. In low energy density superconducting machines, the iron core of the rotor is used to reduce the magnetomotive force (MMF), minimizing the number of superconducting (SC) turns required for coil winding. For example at an ai...

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PUM

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Abstract

A rotor for a synchronous electrical machine is described comprising a rotor core; a racetrack-shaped winding of superconducting coils extending around at least a portion of said rotor core; said coils having coil end portions adjoining ends of said rotor core; and A coil support supports the coil ends and is thermally insulated from the rotor core.

Description

technical field [0001] The present invention generally relates to a superconducting coil in a synchronous rotating machine. More specifically, the present invention relates to a support structure for superconducting field coil windings in a synchronous machine rotor. Background technique [0002] Synchronous electric machines with field coil windings include, but are not limited to, rotating electric generators, rotary motors, and linear electric motors. These machines typically include an electromagnetically coupled stator and rotor. The rotor may include a multi-pole rotor core and one or more coil windings mounted on the rotor core. The rotor core may comprise a permanently magnetic solid material such as an iron core rotor. [0003] Ordinary copper windings are commonly used in synchronous motor rotors. However the resistance of the copper windings (though low by ordinary means) is sufficient to heat the rotor and reduce the power efficiency of the device. In recent...

Claims

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Application Information

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IPC IPC(8): H02K55/02H02K3/46H02K3/04H02K9/19H02K15/08H02K55/04
CPCY02E40/625H02K55/04Y02E40/60H02K3/04H02K3/46H02K15/08
Inventor Y·王E·T·拉斯卡里斯P·K·努卡拉
Owner GENERAL ELECTRIC CO
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