Superconducting switch for superconducting magnet system of superconducting maglev train

A technology of maglev train and superconducting switch, applied in the field of electromagnetic system
CN113380490AInactive Publication Date: 2021-09-10HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Publication Date
2021-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a superconducting switch for a superconducting magnet system of a superconducting maglev train. The superconducting switch comprises a magnesium oxide substrate, and is of a film type structure, wherein the front end face of the magnesium oxide substrate is plated with a superconducting strip YBCO film, the superconducting strip YBCO film is designed to be a snake-shaped wire with gaps on the front end face of the magnesium oxide substrate, a layer of gold foil is plated on the superconducting strip YBCO film positioned at the upper end and the lower end of the magnesium oxide substrate, and a heating wire in snake-shaped wiring is also wound on the rear end surface of the magnesium oxide substrate. According to the superconducting switch, closed-loop operation of the superconducting coil can be achieved, a long-time high-stability noiseless magnetic field is achieved, a vehicle-mounted power source for coil excitation can be omitted, the weight of a maglev train is reduced, the superconducting switch can be used in parallel with a low-temperature diode in the using process, effective safety protection of the superconducting switch is achieved, and the damage rate of the superconducting switch is reduced.
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Description

technical field

[0001] The invention relates to the technical field of electromagnetic systems, in particular to a superconducting switch used in a superconducting magnet system of a superconducting maglev train. Background technique

[0002] The phenomenon of superconductivity was discovered in 1911, and it is widely used in the electromagnetic field because of its excellent characteristics such as zero resistance. However, due to the low critical temperature of superconductors, the application of superconductors is greatly limited; and as more and more The discovery of high critical temperature superconducting materials, especially the discovery of the second type of high-temperature superconducting material ReBCO, greatly reduces the low-temperature environment for superconducting applications, promotes the application range of superconducting, and makes the second type of high-temperature superconducting materials completely It has the basis for commercial application. ...

Claims

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