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Excitation method of superconducting coil and excitation method thereof

A technology of superconducting coils and excitation methods, applied in the direction of superconducting magnets/coils, magnetic objects, electrical components, etc., can solve the problems of high price, large heat leakage, unstable current, etc., achieve low cost, avoid expensive, The effect of easy maintenance

Pending Publication Date: 2022-04-05
QUANZHOU INST OF EQUIP MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large-scale power supply method has disadvantages such as high price, large heat leakage, and unstable current.

Method used

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  • Excitation method of superconducting coil and excitation method thereof
  • Excitation method of superconducting coil and excitation method thereof
  • Excitation method of superconducting coil and excitation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 and Picture 1-1 As shown, the superconducting coil includes a superconducting coil body 1 and a temperature control device 8 . The superconducting coil body 1 is formed by winding a first superconducting tape 2 . More specifically, the first superconducting tape 2 is a BSCCO tape with a width of 4 mm, and the superconducting coil body 1 is a single-wire double-cake coil. The head and tail of the first superconducting strip 2 are pulled out and welded together to form a first joint 3. The solder used for welding is solder, and the wide surface of the first superconducting strip 2 is a superconducting surface. The broad sides of a superconducting strip 2 are welded together. The temperature control device 8 includes a resistance wire 81 wound on the first superconducting tape 2 on the side of the first joint 3, an insulating device arranged between the resistance wire 81 and the first superconducting tape 2, and a resistance wire 81. Wire 81 is connected...

Embodiment 2

[0037] The difference between this embodiment and the first embodiment is:

[0038] Temperature control devices are provided on the first superconducting strips on both sides of the first joint. The temperature control device is the same as the temperature control device in the first embodiment, and can more flexibly control the first superconducting strips on both sides of the first joint. The temperature difference of the conduction strip, thereby flexibly controlling the generated current.

[0039] Other contents of this embodiment are the same as those of the first embodiment, and are not repeated here.

Embodiment 3

[0041] The difference between this embodiment and the second embodiment is:

[0042] like figure 2 As shown, it also includes two pairs of second superconducting strips 4 and four temperature control devices 8. The second superconducting strips 4 are also BSCCO strips with a width of 4 mm, and one end of each pair of second superconducting strips 4 is welded to each other. Together, two second joints 5 spaced from the inside to the outside are formed, the other ends of each pair of second superconducting strips 4 are stacked and welded together from the inside to the outside in turn, and the other end of the innermost second superconducting strip 4 It is welded on the superconducting coil body 1 to realize the first joint 3 and the two second joints 5 in parallel. The second superconducting strips 4 on both sides of each second joint 5 are provided with temperature control devices 8 .

[0043] Other contents of this embodiment are the same as those of the second embodiment, ...

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Abstract

The invention provides a superconducting coil and an excitation method thereof, the superconducting coil comprises a superconducting coil body and a temperature control device, the superconducting coil body is formed by winding a first superconducting tape, and the head and the tail of the first superconducting tape are pulled out and welded together to form a first joint; and the temperature control device is arranged on the first joint or the first superconducting tape, so that a temperature difference exists between the first superconducting tape on the two sides of the first joint. Voltage is generated in the superconducting coil body through the thermoelectric effect, then current and a magnetic field are generated in the superconducting coil body, excitation of the superconducting coil body is achieved, an external large power source is not needed, the structure is simple, maintenance is convenient, and cost is low.

Description

technical field [0001] The invention relates to an excitation method of a superconducting coil and an excitation method thereof. Background technique [0002] Superconducting materials can be widely used in large power equipment due to their unimpeded high current density. With the continuous rise of the green energy saving and environmental protection industry, and the continuous improvement of the performance, output and stability of superconducting tapes, it is generally believed that the large-scale application of superconducting materials will soon be ushered in. The superconducting coil made of superconducting material can run in an environment without current source power supply after excitation, so the volume and weight of the entire coil and its auxiliary structures are greatly reduced. Therefore, the thermal load of the low-temperature system used for superconducting coil operation is greatly reduced, so an important application direction of superconducting coil i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/06H01F6/00
Inventor 赖凌峰赵凯高琦邹圣楠邓舒同
Owner QUANZHOU INST OF EQUIP MFG
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