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Rutherford cable based on ReBCO isotropic superconducting strands

An isotropic, superconducting wire technology, applied in superconducting devices, usage of superconducting elements, superconducting/high-conducting conductors, etc., can solve the problem of low critical magnetic field strength, low operating current density, poor tensile mechanical properties, etc. problem, to achieve the effect of good critical current isotropy, good mechanical properties, and high operating current density

Inactive Publication Date: 2017-11-14
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0003] Aiming at the problems of low operating current density, low critical magnetic field strength, small operating temperature range, and poor tensile mechanical properties of high-current low-temperature superconducting cables in the above technical background when making high-field magnet coils, the present invention proposes a method based on Rutherford cables with ReBCO isotropic superconducting strands

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  • Rutherford cable based on ReBCO isotropic superconducting strands
  • Rutherford cable based on ReBCO isotropic superconducting strands
  • Rutherford cable based on ReBCO isotropic superconducting strands

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] attached figure 1 is a schematic diagram of the three-dimensional structure of the ReBCO isotropic superconducting strand Rutherford cable, such as figure 1 As shown, the Rutherford cable is composed of a metal sheath 4, a ReBCO isotropic superconducting strand 5, a central conductor 6 and a cooling channel 8, and multiple ReBCO isotropic superconducting strands 5 are based on the cable axis , according to a certain angle α around the central conductor 6 helically wound for a week, each strand is closely arranged in the cooling channel 8 and parallel to each other, and a rectangular metal is installed on the periphery of the wound multiple ReBCO isotropic superconducting strands 5 The winding torque between the sheath 4 and the ReBCO isotropic superconducting strand 5 is L p cable torque for complete transposition. In the actual winding, it ...

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Abstract

The invention belongs to the technical field of superconducting electrical engineering, and in particular relates to a Rutherford cable based on ReBCO isotropic superconducting strands. When a high field magnet coil is manufactured with a high current low temperature superconducting cable, the problems of low operation current density, low critical magnetic field intensity, small operation temperature range, poor stretch mechanical property and the like are solved. The invention proposes the Rutherford cable based on ReBCO isotropic superconducting strands. The cable is composed of a center conductor, the ReBCO isotropic superconducting strands, a metal sheath and a cooling channel. The ReBCO isotropic superconducting strands are closely arranged as sub-strands around the center conductor and are spirally wound. Complete transposition of the ReBCO isotropic superconducting strands is realized. The Rutherford cable has the advantages of great critical current isotropy, high operation temperature, high operation current density, good mechanical property, easy bending, simple and mature production process and the like, and is suitable for large-scale production. The application of the ReBCO isotropic superconducting strands in a nuclear fusion large superconducting magnet coil and other devices is expanded.

Description

technical field [0001] The invention belongs to the technical field of superconducting technology, in particular to a Rutherford cable based on ReBCO isotropic superconducting strands. Background technique [0002] With the continuous development of science and technology, controlled nuclear fusion is expected to become a new energy source with high efficiency, no pollution and sustainable development. The current main device for nuclear fusion reaction is the Tokmak reactor. Its magnet system is composed of superconducting large magnet coils. The magnet coils generate a magnetic field to restrict the movement of plasma and carry out nuclear fusion reactions. Magnet Coils, Polar Magnet Coils, Center Solenoids, etc. For example, in ITER (International Thermonuclear Experimental Reactor), the reactor needs to generate a plasma ring with a central magnetic field strength of 6.3T and a central line length of 34.1m. In order to generate the plasma ring of the above size, the ci...

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Application Information

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IPC IPC(8): H01B12/08
CPCH01B12/08Y02E40/60
Inventor 王银顺阚常涛薛济萍吴姜李彦侯言兵
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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