Quench detection device and quench detection method for uninsulated high-temperature superconducting coil

A high-temperature superconducting and detection device technology, applied in the field of superconducting, can solve the problems of burning strips, etc., and achieve the effect of improving safety, fast and effective quench detection

Inactive Publication Date: 2021-06-04
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, in theory and practice, although the non-insulated high-temperature superconducting coil ...

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  • Quench detection device and quench detection method for uninsulated high-temperature superconducting coil
  • Quench detection device and quench detection method for uninsulated high-temperature superconducting coil
  • Quench detection device and quench detection method for uninsulated high-temperature superconducting coil

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the inventive concept. These all belong to the protection scope of the present invention.

[0034] like Figure 1 to Figure 9 As shown in the figure, the present invention provides a quench detection device and measurement method for an uninsulated high-temperature superconducting coil. The main principle on which the method of the present invention is based is: Part of the current through the coil will be split between turns and flow radially, which will reduce the magnetic field induced by the entire coil and also change the magnetic field distribution on the coil surface. like image 3 As shown, ...

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Abstract

The invention provides a quench detection device and a quench detection method for an uninsulated high-temperature superconducting coil, the quench detection device comprises a plurality of uninsulated high-temperature superconducting coils and a plurality of magnetic field measuring devices, wherein each magnetic field measuring element comprises a magnetic field measuring coil or a magnetic field measuring device; the magnetic field measuring devices are arranged on the central axis of the one or more non-insulated high-temperature superconducting coils and in the surrounding space of the one or more non-insulated high-temperature superconducting coils; and the magnetic field measuring coils are arranged inside, outside or on the surface of one or more non-insulated high-temperature superconducting coils. Based on the principle of induced magnetic field attenuation during quench of the non-insulated high-temperature superconducting coil, the corresponding measuring device and method are designed, and quench of the non-insulated high-temperature superconducting coil is effectively monitored. According to the invention, the problem of difficult quench detection of the non-insulated high-temperature superconducting coil and the magnet is solved, and rapid and effective quench detection can be carried out on the non-insulated high-temperature superconducting coil, which is a key step for quench protection of the non-insulated high-temperature superconducting coil.

Description

technical field [0001] The invention relates to the field of superconductivity, in particular, to a quench detection device and a quench detection method of an uninsulated high temperature superconducting coil. Background technique [0002] The second-generation high-temperature superconducting tape is a coated superconductor produced by the method of multilayer lamination packaging using vacuum coating technology. The thickness of the superconducting tape is generally 50-300 microns, and the width is generally 4-12 mm. Its typical structure is as follows: figure 1 Shown: the thickness of the superconducting layer is usually 1 to 3 microns, and it is coated on a base tape with a thickness of about 50 microns by vacuum coating technology. Therefore, the second-generation high-temperature superconducting tape is a tape-like structure with an ultra-high aspect ratio. The baseband and protective layer of the second-generation high-temperature superconducting tape are various m...

Claims

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Application Information

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IPC IPC(8): G01R33/12
CPCG01R33/1238
Inventor 王亚伟金之俭
Owner SHANGHAI JIAO TONG UNIV
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