Superconducting graphene composite film wire/strip and cable

Abstract

The present invention relates to a superconductive graphene composite film line / strip and a superconductive graphene composite cable. The superconductive graphene composite film line / strip and the superconductive graphene composite cable comprise a superconductive graphene composite film line / strip and a superconductive graphene composite cable. The superconductive graphene composite film line / strip comprises a graphene layer, a superconductive film layer, a buffer layer, a base material layer and a stable layer. A multi-layer graphene layer comprises a transverse graphene layer and a vertical graphene layer. The transverse graphene layer and the vertical graphene layer of the multi-layer graphene layer are connected with the superconductive film layer, the buffer layer, the base material layer and the stable layer to commonly form graphene latticed composite superconductive film coordination structure body line / strip. The superconductive graphene composite film line / strip comprises a single-face superconductive graphene composite film line / strip and a dual-face superconductive graphene composite film line / strip. The superconductive graphene composite cable has the coordination structure body features of the graphene latticed composite superconductive line.

Description

technical field [0001] The invention belongs to the field of electric power transmission systems, and relates to a superconducting wire / strip and a cable, and more specifically to a superconducting graphene composite film line / strip and a cable. Background technique [0002] Superconducting technology is a high-tech of great economic and strategic significance in the 21st century. Superconducting wires / strips and cables have the advantages of large transmission capacity, high power density, long distance, small size, light weight, low transmission loss, no fire hazard, and environmental friendliness. Current devices, motors, energy storage devices, transformers, magnet technology, medical nuclear magnetic resonance imaging, high-energy physics experiments and high-speed transportation have important application prospects. However, the current development of superconducting wires / tapes and cables also faces some technical problems, which need to be further optimized and impr...

AI Technical Summary

Problems solved by technology

However, the current development of superconducting wires / tapes and cables also faces some technical problems, which need to be further optimized and improved. It is necessary to further improve the mechanical strength, flexibility, lateral bending and processability of the superconducting wire / ribbon, so that the manufactured superconducting wire / ribbon has a certain uniformity and performance stability; when there is any type of mechanical disturbance, Thermal disturbance or magnetic disturbance, as well as the fault current of the power system, have a certain impact on the superconducting wire / strip and superconducting cable, which will cause a quench problem; Or take system downtime, the economic loss will be huge

In view of the complexity of the superconducting wire / strip and cable system, the relatively harsh operating conditions, and the rapid development of quenching, the superconducting wire / strip and cable of the current structure obviously have the problem of weak ability to effectively resist and withstand the impact of fault current; the current The structure of superconducting wires / strips and cables also has quench instability, as well as poor flexibility, side bending and processability. In order to overcome these technical defects, people often use superconductors to coat a large number of normal conductors. Metal technology consumes a lot of normally conductive metal, which will also make the superconductor too large or heavy; because the rapid heat transfer and shunt current are related to the contact area and orientation of the normally conductive metal, they are related to the thermal conductivity and electrical resistance of the normally conductive metal. It is related to the performance, the type and amount of the normally conductive metal material used, and the technical method of using the normally conductive metal material

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