High-current-carrying high-temperature superconducting composite conductor based on sectioned stacking structure

A high-temperature superconducting, stacked structure technology, applied in superconducting/high-conducting conductors, the usage of superconducting elements, superconducting devices, etc. Problems such as poor machining performance, to achieve the effect of small critical current recession, improved stability margin, and high current carrying capacity

Active Publication Date: 2020-02-21
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The current-carrying capacity of a single second-generation high-temperature superconducting tape is small, which is not enough to meet the high-current-carrying application scenarios represented by fusion reactor magnets; becau...

Method used

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  • High-current-carrying high-temperature superconducting composite conductor based on sectioned stacking structure
  • High-current-carrying high-temperature superconducting composite conductor based on sectioned stacking structure
  • High-current-carrying high-temperature superconducting composite conductor based on sectioned stacking structure

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] Reference attached figure 1 And attached figure 2 , a high-current-carrying high-temperature superconducting composite conductor based on a split-stack structure. The outer layer of the composite conductor is a stainless steel armor 1 with an outer square and an inner circle in cross section, and contains four identical high-temperature superconducting cables 2; The outermost layer of the conductive cable is wrapped with an insulating shea...

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Abstract

The invention discloses a high-current-carrying high-temperature superconducting composite conductor based on a sectioned stacking structure. The composite conductor is composed of a stainless steel armor with a square outer part and a round inner part and four high-temperature superconducting cables with the same model. The four high-temperature superconducting cables are structurally composed ofan insulating sheath, an aluminum sheath, four quarter-ring-shaped copper matrixes with square grooves formed in the outer sides and four sets of yttrium-barium-copper-oxide high-temperature superconducting strip stacks embedded into the square grooves of the copper matrixes respectively. The copper matrixes, the yttrium-barium-copper-oxide high-temperature superconducting strip stacks and the aluminum sheath are fixed through soldering tin; and equidistant cooling holes are formed in the aluminum sheath to enhance the cooling capacity of the conductor. The composite conductor is compact in structure, high in current-carrying capacity under the condition of a high background magnetic field, high in anti-interference capacity, high in stability margin and suitable for various high-field superconducting cable application scenes including magnetic confinement fusion reactor superconducting magnets.

Description

technical field [0001] The invention belongs to the field of superconducting engineering, and in particular relates to a structure design of a high-current-carrying high-temperature superconducting composite conductor based on a split-lobe stacking structure and a key process for manufacturing it. Background technique [0002] The superconducting magnet system is one of the most important subsystems in the magnetic confinement fusion device. The magnet system confines the high-parameter plasma by generating a strong magnetic field with a specific configuration, so that it can perform fusion reactions safely and stably. A magnet system with good critical properties under high background field is essential to obtain a stable plasma discharge with high parameters. At present, the tokamak device has basically abandoned conventional conductor magnets, and all magnet systems are made of superconducting materials. With the improvement of the magnetic field strength and other param...

Claims

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Application Information

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IPC IPC(8): H01B12/02H01B12/10
CPCH01B12/02H01B12/10Y02E40/60
Inventor 郑金星张正硕陆坤黄卫程远
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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