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High-temperature superconducting composite conductor containing inner superconducting layer and outer superconducting layer

A composite conductor, high-temperature superconducting technology, applied in the directions of superconducting/high-conducting conductors, the usage of superconducting elements, superconducting devices, etc. Current-carrying performance, improved fill factor, powerful effects

Active Publication Date: 2020-02-04
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper skeleton is used as the support material in the middle of the spiral superconducting composite conductor. When the critical current is insufficient, the current density is lower than the other two superconducting composite conductors; The process is difficult; although the superconducting tape stacked conductors, the manufacturing process is relatively simple, but due to the large current-carrying stack thickness, it can only be wound on a cylinder with a large radius

Method used

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  • High-temperature superconducting composite conductor containing inner superconducting layer and outer superconducting layer
  • High-temperature superconducting composite conductor containing inner superconducting layer and outer superconducting layer
  • High-temperature superconducting composite conductor containing inner superconducting layer and outer superconducting layer

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 2~3 Shown is a schematic diagram of the inner superconducting layer and the outer superconducting layer of the superconducting composite conductor provided by the present invention.

[0030] The superconducting composite conductor includes an inner superconducting layer and an outer superconducting layer; the inner superconducting layer includes an inner superconducting layer unit and a filling factor arranged in the metal skeleton; the outer superconducting layer unit includes an outer superconducting layer wound on the metal skeleton The insulating layer outside the conducting unit and the outer superconducting unit.

[0031] like figure 2 Shown is a schematic diagram of the inner superconducting layer of the superconducting composite conductor provided by the present invention. The inner superconducting layer unit is a parallel structure of multiple high-temperature superconducting strips twisted along the length direction according to a specific pitch...

Embodiment 2

[0042] like Figure 2~3 Shown is a schematic diagram of the inner superconducting layer and the outer superconducting layer of the superconducting composite conductor provided by the present invention.

[0043] The superconducting composite conductor includes an inner superconducting layer and an outer superconducting layer; the inner superconducting layer includes an inner superconducting layer unit and a filling factor arranged in the metal skeleton; the outer superconducting layer unit includes an outer superconducting layer wound on the metal skeleton The insulating layer outside the conducting unit and the outer superconducting unit.

[0044] like figure 2 Shown is a schematic diagram of the inner superconducting layer of the superconducting composite conductor provided by the present invention. The inner superconducting layer unit is a parallel structure of multiple high-temperature superconducting strips twisted along the length direction according to a specific pitch...

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Abstract

The invention discloses a high-temperature superconducting composite conductor containing an inner superconducting layer and an outer superconducting layer. The superconducting composite conductor includes the inner superconducting layer and the outer superconducting layer. The inner superconducting layer includes inner superconducting layer units and filling factors which are arranged in a metalskeleton. The outer superconducting layer includes outer superconducting units winding the metal skeleton and an insulating layer outside the outer superconducting units. The superconducting compositeconductor has a simple structure and comprehensive functions, has high current-carrying performance and high current density due to the influence of a spatial magnetic field of the inner superconducting layer and the outer superconducting layer, and can further achieve good current-carrying performance in a low-temperature environment, and alternating-current loss is reduced.

Description

technical field [0001] The invention relates to a superconducting wire, in particular to a large current-carrying high-temperature superconducting composite conductor with high current density. Background technique [0002] With the continuous advancement of high-temperature superconducting material preparation technology, a series of superconducting materials with excellent performance have come out. For example, the critical current of a single superconducting strip under the self-field can reach 200A, which has laid a foundation for the development of superconducting technology. . However, with the gradual increase in people's demand for large current-carrying power devices, the current carrying capacity of a single superconducting strip can no longer meet the needs of practical applications, and the simple parallel winding structure of multiple superconducting strips will cause problems due to wire branches. The small leakage reactance between the circuits will cause a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/00H01B12/08
CPCH01B12/00H01B12/08Y02E40/60
Inventor 付珊珊诸嘉慧丘明
Owner CHINA ELECTRIC POWER RES INST
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