Superconducting wire rod, Roebel superconducting composite cable and weaving method of Roebel superconducting composite cable

A technology of superconducting wires and composite cables, which is applied in the direction of superconducting devices, superconducting/high-conducting conductors, and the usage of superconducting elements. The effect of uneven distribution

Pending Publication Date: 2022-05-17
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as there are more and more large-capacity and high-current-carrying superconducting power equipment requirements, the single superconducting tape that can be produced in the prior art can no longer meet the requirements for large-capacity, high-current-carrying, and low-loss , Traditional power equipment uses multiple conductors in parallel to increase its current carrying capacity, but direct parallel connection often has disadvantages such as uneven current distribution, poor mechanical properties and not easy to bend

Method used

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  • Superconducting wire rod, Roebel superconducting composite cable and weaving method of Roebel superconducting composite cable
  • Superconducting wire rod, Roebel superconducting composite cable and weaving method of Roebel superconducting composite cable
  • Superconducting wire rod, Roebel superconducting composite cable and weaving method of Roebel superconducting composite cable

Examples

Experimental program
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Effect test

Embodiment 1

[0044] refer to Figure 1-2 , a superconducting wire, comprising a plurality of repeating units 1 connected in sequence, the plurality of repeating units 1 comprising a plurality of first repeating monomers and a plurality of second repeating monomers, the first repeating monomers and the second repeating monomers alternate setting;

[0045] The first repeating unit includes a first connecting section 11 and a first straight section 12, the first connecting section 11 and the first straight section 12 are arranged at an angle, and the first end of the first connecting section 11 is connected to the first straight section 12. first end connection;

[0046] The second repeating unit includes a second connecting section 13 and a second straight section 14, the second connecting section 13 and the second straight section 14 are arranged at an angle, and the first end of the second connecting section 13 is connected to the first straight section 12. The second end is connected; t...

Embodiment 2

[0057] refer to Figure 3-Figure 12 , a Roebel superconducting composite cable, comprising the superconducting wires provided by N-strand embodiment 1, wherein the N-strands of superconducting wires are stacked sequentially, and the transposition period of the repeating unit of each superconducting wire is L, and each superconducting wire is The distance between the second end of the first connecting section of the wire and the second end of the first connecting section of the adjacent superconducting wire is L / N.

[0058] In this embodiment, the second end of the first connecting segment and the second end of the second straight segment of each strand of superconducting wire are respectively located at the lowermost end and the uppermost end of the Roebel superconducting composite cable within the transposition period of the repeating unit .

[0059] In this embodiment, the superconducting wire is an HTS sub-wire.

[0060] in, Figure 3 to Figure 12 , each of which shows p...

Embodiment 3

[0062] refer to Figure 11-Figure 20 , a braiding method of a Roebel superconducting composite cable, the braiding method provided in this embodiment is applicable to the braiding of the Roebel superconducting composite cable provided in Example 2, and the braiding method may further comprise the steps:

[0063] S30. Stack and place N single-strand superconducting wires in sequence, wherein the transposition period of the repeating unit of each superconducting wire is L, and the second end of the first connecting section of each superconducting wire is connected to its adjacent strand The distance between the second ends of the first connecting section of the superconducting wire is L / N.

[0064] S40. When weaving, the second end of the first connecting section and the second end of the second straight section of each superconducting wire are respectively located at the lowermost end and the uppermost end of the Roebel superconducting composite cable within the transposition p...

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Abstract

The invention discloses a superconducting wire, a Roebel superconducting composite cable and a weaving method thereof, and belongs to the superconducting electrical theory and technical field, the Roebel superconducting composite cable comprises a plurality of repeating units connected in sequence, the repeating units comprise a plurality of first repeating monomers and a plurality of second repeating monomers, and the first repeating monomers and the second repeating monomers are alternately arranged; the first repeating unit comprises a first connecting section and a first linear section, and the first end of the first connecting section is connected with the first end of the first linear section; the second repeating unit comprises a second connecting section and a second linear section, and the first end of the second connecting section is connected with the second end of the first linear section; the second end of the second connecting section is connected with the first end of the second linear section. According to the invention, the large-current-capacity superconducting composite cable can be obtained through a method of manually weaving the Roebel superconducting cable, and the problems of non-uniform current distribution, small bearing tensile stress, poor mechanical characteristics and the like are solved.

Description

technical field [0001] The invention belongs to the field of superconducting engineering theory and technology, and in particular relates to a superconducting wire, a Roebel superconducting composite cable and a braiding method thereof. Background technique [0002] With the invention and application of coated high-temperature superconducting wires, the critical current of a single 3mm superconducting tape under the self-field can reach 90-110A, and the critical current of a single 4mm superconducting tape under the self-field can reach 110-210A, the critical current of a single 10mm superconducting strip can reach 300-550A under the self-field, which lays the foundation for the preparation of superconducting power devices. [0003] However, as there are more and more large-capacity and high-current-carrying superconducting power equipment requirements, the single superconducting tape that can be produced in the prior art can no longer meet the requirements for large-capacit...

Claims

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Application Information

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IPC IPC(8): H01B12/08
CPCH01B12/08Y02E40/60
Inventor 方进陈海宇华俊威
Owner BEIJING JIAOTONG UNIV
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