High-temperature superconducting twisted wire winding method
A high-temperature superconducting and superconducting wire technology, which is applied in the direction of cable/conductor manufacturing, electrical components, circuits, etc., can solve the process and method that has no published patents and documents, and has no second-generation high-temperature superconducting tape cutting and weaving performance and other issues to achieve the effect of improving performance, increasing critical current, and reducing AC loss
Inactive Publication Date: 2016-04-13
SHANGHAI JIAO TONG UNIV
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- Application Information
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Problems solved by technology
[0005] After searching, it is found that there is currently no process and method for cutting and weaving the second-generation high-temperature superconducting tape to improve its performance, and there are no published patents and documents
Method used
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Embodiment 1
[0044] Embodiment 1: Applicable to the winding of pie-shaped superconducting coils. Compared with the traditional method, the critical current of the pie-type superconducting coil wound by the new high-temperature superconducting wire with twisted structure can increase the critical current by 20% and reduce the AC loss by 40%.
Embodiment 2
[0045] Embodiment 2: Applicable to the winding of helical tube superconducting coils. The critical current of the wound helical tube superconducting coil can be increased by 30%, and the AC loss can be reduced by 50%.
Embodiment 3
[0046] Embodiment 3: It can be applied to high-current superconducting current leads and cables. It can increase the critical current of the equipment by 20% and reduce the AC loss by 30%.
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Abstract
The invention discloses a high-temperature superconducting twisted wire winding method. The winding method is characterized by comprising a step of strip cutting, wherein a high-temperature superconducting strip is cut into wire-shaped superconducting thin belts in a length direction; and a step of strip weaving, wherein the superconducting thin belts are weaved to form a new superconducting wire. According to the high-temperature superconducting twisted wire winding method, the macroscopic geometric structure of the superconducting strip is changed; the critical current of a superconducting magnet is improved in the application of the superconducting magnet; the alternating current loss is lowered, and the performance of the superconducting magnet is dramatically improved; and under the same condition, the cost for a user is equivalently reduced.
Description
technical field [0001] The invention relates to the field of superconducting engineering applications, in particular to a winding method for a high-temperature superconducting twisted wire. Background technique [0002] The second-generation high-temperature superconducting tape ReBCO is a coated superconductor produced by vacuum coating technology and multi-layer lamination packaging. The thickness of the superconducting tape is generally 50-100 microns, and the width is 4-12 mm, of which the thickness of the superconducting layer is only 1-2 microns. In the superconducting state, the maximum current that the strip can pass is called the critical current, which is the most important index to measure the current-carrying capacity of the superconducting strip. For the second-generation high-temperature superconducting tape, its critical current will decrease with the increase of the external magnetic field perpendicular to and parallel to its surface, such as figure 1 shown...
Claims
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IPC IPC(8): H01B13/00
CPCH01B13/00
Inventor 李柱永王禹程王亚伟王峰洪智勇金之俭
Owner SHANGHAI JIAO TONG UNIV
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