High-temperature superconductive magnetic levitation device

Abstract

The invention is a high temperature superconductive magnetic suspension device belonging to low speed magnetic suspension track communication technology, the character is: it is made up of high temperature super conductive magnet, position sensor, alternate voltage controlled current source and whose frequency is between 0-1000Hz, the super wire of the high temperature superconductive body and superconductive coil is formed by winging superconductive magnet. The device can be applied to city traffic, low energy consumption, low speed and low vibration and so on.

Description

technical field [0001] The invention relates to the technical field of magnetic levitation rail transit. Background technique [0002] The purpose of the present invention "a high-temperature superconducting magnetic levitation device" is to provide a safe, simple construction, high environmental protection, and energy-saving low-speed magnetic levitation rail vehicle, which is suitable for short-distance transportation of people or goods in cities and tourist attractions. transport. The main feature of the present invention is to use Bi-2223 / Ag or other high-temperature superconducting wires instead of conventional wires to make magnets to achieve this purpose. [0003] Prior to the present invention, the magnetic levitation rail vehicle can be divided into two types: the conventional electromagnetic attraction type and the magnetic repulsion type, according to the characteristics of the force between the magnetic levitation magnet and the track guide rail. Constant condu...

AI Technical Summary

Problems solved by technology

[0005] A common shortcoming of the above-mentioned maglev trains with magnets wound by conventional wires is that the levitation height is too low (about 10mm)

This deficiency comes from the fact that the energy consumption of conventional wires limits the current-carrying capacity of the wires, causing the magnets to fail to provide enough attraction with the ferromagnetic track to achieve the purpose of increasing the levitation height

The poor current-carrying capacity of the wires and the low levitation height of the maglev train have brought a series of problems: due to the low levitation height, the requirements for the track infrastructure are increased; due to the resistance heating of the conventional wires, the volume and weight of the electromagnet are large , high energy consumption, low efficiency

[0011] The disadvantage of high-temperature superconducting bulk maglev vehicles is that the track is completely laid by permanent magnets, and the infrastructure cost for the track is too high

Moreover, the permanent magnet track will absorb stray ferromagnetic substances near the roadbed. Removing these substances will increase the line operation and maintenance costs, and it is very difficult. The ferromagnetic substances remaining on the track will increase the risk of maglev vehicle operation.

This kind of magnetic levitation formed by the magnetic flux pinning effect cannot realize the active control of the levitation height of the magnetic levitation experimental vehicle, and it is also a shortcoming that the high temperature superconducting block magnetic levitation vehicle cannot overcome

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