Gear-meshed high-temperature superconducting cable

Abstract

The invention relates to a gear meshing type high-temperature superconducting cable. The invention provides a gear meshing type high-temperature superconducting cable aiming at the defects that the total critical current of a conductor formed by strips which are stacked or arranged in parallel is severely attenuated due to the influence of a magnetic field, the alternating current loss is relatively large, and the mechanical property and the thermal stability are poor. The cable is composed of a superconducting tape, an outer gear skeleton, an inner gear skeleton, an insulating layer (including an outer insulating layer and an inner insulating layer), a cooling channel (including a cooling working medium transmission channel and a cooling working medium return channel), a thermal insulation layer and a metal outer sheath. The outer gear framework is meshed with the inner gear framework. The superconducting strips are placed at the gear teeth of the internal and external gear skeletons, so that staggered parallelism is realized, the spacing distance is increased, and the alternating current loss is reduced. The superconducting cable has the advantages of good stability, small loss, small size and the like.

Description

technical field [0001] The invention relates to the application field of superconducting power technology, in particular to a high-temperature superconducting cable, which belongs to the field of superconducting engineering. Background technique [0002] my country's future energy construction and planning provides a blueprint. With the development of my country's economy and the corresponding increase in power demand, the contradiction between the increase in urban power supply demand and the lack of power supply corridors has been alleviated, and the application of greener superconducting power transmission has begun to be put on the agenda. Superconducting cables and cables are currently the most promising superconducting power devices in the field of superconducting power technology. Their zero-resistance characteristics make them have significant advantages over traditional cables when transmitting electric energy. They can achieve low voltage, high current and high El...

AI Technical Summary

Problems solved by technology

However, most of the current superconducting cables are stacked or parallelly placed and wound with strips. There are two shortcomings: first, the magnetic field has a greater impact on the total critical current due to the close proximity of the strips, and the attenuation of the total critical current is more obvious; The second is that the strip is too close to cause a large exchange loss

Images