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Common-vertical-plane transposition high-temperature superconducting cable and winding transposition method

A high-temperature superconducting and vertical surface technology, applied in superconducting devices, usage of superconducting elements, superconducting/high-conducting conductors, etc., can solve problems such as small current-carrying capacity, reduce AC loss, and reduce hysteresis loss , Reduce the effect of cooling power and quench risk

Pending Publication Date: 2021-03-26
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patents CN 110246625 A and CN 110706860A are typical Rutherford cables. The high-temperature superconducting stacked rectangular and circular strands are space-transposed at a certain angle. When this type of cable is used to wind magnets, all strips will have a part where the normal line of the strip surface is parallel to the magnetic field, so that only the minimum current carrying capacity of the strip can be used

Method used

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  • Common-vertical-plane transposition high-temperature superconducting cable and winding transposition method
  • Common-vertical-plane transposition high-temperature superconducting cable and winding transposition method
  • Common-vertical-plane transposition high-temperature superconducting cable and winding transposition method

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Embodiment 1

[0037] Such as figure 1 and figure 2 As shown, the common vertical transposition high temperature superconducting cable includes a conductor frame 1 and a metal sheath 5 .

[0038] The conductor frame 1 is tightly wound with strands 4 and completely covered by an outer metal sheath 5 .

[0039] The strands 4 are tightly wound on the surface of the conductor frame 1 at a certain angle.

[0040] The strand 4 consists of a hollow cylindrical sheath material with the stacked conductor 2 inside.

[0041] The stacked conductor 2 is a multi-layer structure formed by stacking several strip conductors (strips), with a square cross section. The plane of each layer is the strip surface 3 . All strip conductors (strips) are always perpendicular to the same plane, ie the vertical plane of the strip side 3 . The strip faces 3 have the same vertical plane (co-vertical plane) in the strip length direction.

[0042] Such as Figure 3d As shown, all the strands 4 are helically wound aro...

Embodiment 2

[0048] Such as Figure 4 and Figure 5 Shown, another embodiment of the present invention. Wherein, the cross section of the conductor frame 1 is oblong, that is, the main body is rectangular, and the two ends are semicircular. The strands 4 are tightly wound on the surface of the conductor frame 1 at the same angle. The figure shows a section of a winding circle. The outer metal sheath 5 compresses the strands 4 and is also a hollow structure with a rectangular outer surface.

[0049] The strip surfaces 3 of all strips of the strands 4 are all parallel and parallel to the axis direction of the conductor frame 1 .

[0050] Such as Figure 6As shown, the strand 4 is wound by the co-vertical winding transposition method: the centerline of the arc of the conductor frame 1 is the winding central axis of the strand 4, and the strip surfaces 3 in all the strands 4 are parallel. The plane of the strip is always perpendicular to the vertical plane of the initial strip surface 3, a...

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Abstract

The invention belongs to the technical field of high-temperature superconducting, and particularly relates to a common-vertical-plane transposition high-temperature superconducting cable and a windingtransposition method. The common-vertical-plane transposition high-temperature superconducting cable comprises a conductor framework, a metal sheath and strands, the strands are tightly wound on thesurface of the conductor framework, and the metal sheath completely wraps all the strands; the strands are spirally wound on the surface of the conductor skeleton at a certain angle, and all strip surfaces of the strands are parallel. The common-vertical-plane winding transposition method comprises the following steps: tightly winding the strands on the outer surface of the conductor framework, taking the arc center line of the conductor framework as the winding central axis of the strands, and rotating and winding the strands at the same angle theta around the central axis of the framework atan alpha angular speed; meanwhile, enabling the strands to also reversely rotate around a fixed shaft Xs of a wire coil emitted by the strands at an alpha angular speed. By adjusting the strip surface orientation of the common-vertical-surface transposition high-temperature superconducting cable, all strip planes can be kept parallel to the magnetic field angle or have the minimum included anglewith the magnetic field angle, so that the maximum critical current of the high-temperature superconducting strip can be fully utilized.

Description

technical field [0001] The invention belongs to the technical field of high-temperature superconductivity, and in particular relates to a co-vertical plane transposition high-temperature superconducting cable and a winding transposition method. Background technique [0002] High-temperature superconducting tape has a much higher operating temperature and critical magnetic field than low-temperature superconducting, which provides a better choice for building high-field magnets, such as fusion reactor magnets, accelerator magnets, and detector magnets. The critical current of high-temperature superconducting strips has significant anisotropy. In order to make full use of the critical current of the strip, the normal direction of the strip surface must be perpendicular to the direction of the magnetic field; The cable is symmetrically transposed to reduce the AC loss of the cable. While the normal structure of the high-temperature superconducting cable is being transposed, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/02
CPCH01B12/02Y02E40/60
Inventor 左佳欣赖小强李鹏远孙林煜张腾陈辉
Owner SOUTHWESTERN INST OF PHYSICS