Superconductive armature winding for an electrical machine

Details Superconductive armature winding for an electrical machine Superconductive armature winding for an electrical machine

H - Electricity

02

K

H02K 55/00 (2006.01) H02K 55/02 (2006.01) H02K 3/14 (2006.01) H02K 3/22 (2006.01)

Patent

CA 2403666

An armature winding (10) for an electrical machine is formed of superconductive cable (16). To shield the superconducting wire from large AC magnetic fields and to minimize the mechanical forces and torques on the conductor components, the superconducting armature winding is placed in a slotted stator core (22). The superconductive cable is formed of multi- filamentary superconducting wire tape with an aspect ratio close to unity or is alternatively formed of continuous cables of superconducting wire. Magnetic wedges (26) disposed in openings of the slots shield the slot-embedded SC sinding from AC field components.

L'invention concerne un enroulement d'induit (10) formé de câble supraconducteur (16), destiné à une machine électrique. L'enroulement d'induit supraconducteur est placé dans un noyau de stator à fentes (22) de façon à protéger le fil supraconducteur de champs magnétiques alternatifs importants et de minimiser les couples et les forces mécaniques sur les composants conducteurs. Le câble supraconducteur est formé d'une bande supraconductrice à filaments multiples, dont le rapport d'aspect est proche de l'unité, ou, dans une autre réalisation, formé de câbles continus de fil supraconducteur. Des cales magnétiques (26) disposées dans les ouvertures des fentes protègent l'enroulement supraconducteur des composants de champs alternatifs.

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