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Electromagnet shielded high-temp. superconductive synchronous rotor and method for assembling same

A conductive shielding and rotor technology, applied to electromagnetic shielding. In the field, it can solve the problems of too many parts, complex and expensive, etc., and achieve the effect of reducing assembly time, reducing coil assembly changes, and improving coil support quality

Inactive Publication Date: 2007-03-07
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 various problems such as being expensive, complicated and requiring an excessive number of parts

Method used

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  • Electromagnet shielded high-temp. superconductive synchronous rotor and method for assembling same
  • Electromagnet shielded high-temp. superconductive synchronous rotor and method for assembling same
  • Electromagnet shielded high-temp. superconductive synchronous rotor and method for assembling same

Examples

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Embodiment Construction

[0027] FIG. 1 shows an example synchronous generator 10 having one stator 12 and one rotor 14 . The rotor comprises field coil windings mounted inside the cylindrical rotor vacuum cavity 16 of the stator. The rotor is housed inside the rotor vacuum chamber of the stator. As the rotor rotates within the stator, the magnetic field 18 generated by the rotor and stator coils (shown in dashed lines) moves / rotates through the stator and induces current in the windings of the stator coils 19 . This current is output by the generator as electrical energy.

[0028] The rotor 14 has a substantially longitudinally extending axis 20 and a solid rotor core 22 . The solid core 22 has high magnetic permeability and is typically made of a ferromagnetic material such as iron. In a low energy density superconducting machine, the iron core of the rotor is used to reduce the magnetomotive force (MMF), thus minimizing the amount of superconducting (SC) coils required for coil winding. For exam...

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PUM

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Abstract

A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, the coil winding having a pair of side sections on opposite sides of the rotor core; and a conductive shield around the rotor core and covering the coil winding.

Description

technical field [0001] This invention relates generally to superconducting coils in synchronous rotating machines. In particular, the invention relates to an electromagnetic shield for a rotor with superconducting field coils. Background technique [0002] Synchronous electrical machines with field coil windings include, but are not limited to, rotary generators, rotary motors, and linear motors. These machines typically include a stator and rotor electromagnetically coupled to each other. 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] Conventional copper windings are generally used in the rotors of synchronous motors. However, the resistance of the copper windings (albeit low by conventional measures) is sufficient to heat the rotor considerably and reduce the energy efficiency of the machine. More recently, sup...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K55/00H02K55/02H02G3/02H02K3/04H02K15/12H02K55/04
CPCY02E40/625H02K55/04Y02E40/60H02G3/02H02K3/04H02K15/12
Inventor Y·王R·J·尼加德E·T·拉斯卡里斯J·A·厄本
Owner GENERAL ELECTRIC CO