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

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...

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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

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