Soldered double pancake winding of high temperature superconducting tape

2003 ◽  
Vol 13 (2) ◽  
pp. 1784-1787 ◽  
Author(s):  
S.W. Kim ◽  
M.H. Sohn ◽  
S.K. Baik ◽  
Y.S. Jo ◽  
M.G. Seo ◽  
...  
Keyword(s):  
High Temperature ◽  
Superconducting Tape ◽  
High Temperature Superconducting ◽  
Double Pancake

scholarly journals Development of a Cryogen-Free Compact 3 T Superconducting Magnet for an Electromagnetic Property Measurement System

2021 ◽  
Vol 11 (7) ◽  
pp. 3074
Author(s):  
Jae Young Jang ◽  
Myung Su Kim ◽  
Young Jin Hwang ◽  
Seunghyun Song ◽  
Yojong Choi ◽  
...  
Keyword(s):  
High Temperature ◽  
Measurement System ◽  
Electromagnetic Property ◽  
Superconducting Magnet ◽  
Optimized Design ◽  
Magnet System ◽  
Superconducting Tape ◽  
High Temperature Superconducting ◽  
Target Field ◽  
Property Measurement

A cryogen-free portable 3 T high-temperature superconducting magnet for an electromagnetic property measurement system has been developed to serve as a user facility at the Korea Basic Science Institute. The metallic insulation method was adopted to reduce the charging delay without sacrificing the self-protecting feature. A genetic-algorithm-aided optimized design was carried out to minimize the superconducting tape consumption while satisfying several design constraints. After the design, the compact high-temperature superconducting magnet composed of eight double-pancake coil modules was wound with high-temperature superconducting tape and stainless steel tape, and integrated with a two-stage cryo-cooler. The 3 T magnet was successfully cooled to approximately 20 K with a cryo-cooler and reached the target field of 3 T without any problems. Long-term measurements and a range of other tests were also implemented to verity the performance of the magnet. Test results demonstrated the feasibility of a cryogen-free portable high-temperature superconducting magnet system for electromagnetic property measurement experiments.

A nonlinear model of silver sheathed Bi(2223) high temperature superconducting tape

1997 ◽  
Vol 7 (2) ◽  
pp. 294-297 ◽  
Author(s):  
B. Dutoit ◽  
N. Nibbio ◽  
D. Djukic ◽  
H. Dedieu ◽  
G. Grasso
Keyword(s):  
High Temperature ◽  
Nonlinear Model ◽  
Superconducting Tape ◽  
High Temperature Superconducting

scholarly journals High Temperature Superconducting Non-insulation Closed-loop Coils for Electro-dynamic Suspension System

2021 ◽  
Author(s):  
Li Lu ◽  
Wei Wu ◽  
Xin Yu ◽  
Zhijian Jin
Keyword(s):  
High Temperature ◽  
Liquid Helium ◽  
High Speed ◽  
Closed Loop ◽  
Permanent Magnets ◽  
Current Model ◽  
Persistent Current ◽  
Magnetomotive Force ◽  
High Temperature Superconducting ◽  
Double Pancake

Null-flux Electro-dynamic suspension (EDS) system promises to be one of the feasible high-speed maglev systems above 600 km/h. On account of its greater current-carrying capacity, superconducting magnet can provide super-magnetomotive force that is required for null-flux EDS system and cannot be provided by electromagnets and permanent magnets. There is already a relatively mature high-speed maglev technology with low temperature superconducting (LTS) magnets as the core, which works in the liquid helium temperature region (T≤4.2 K). 2-Generation high temperature superconducting (HTS) magnet winded by REBa2Cu3O7−δ (REBCO, RE=rare earth) tapes works above 20 K region and do not need to count on liquid helium which is rare on earth. This paper designed HTS no-insulation closed-loop coils applied for EDS system and energized with persistent current switch. The coils can work at persistent current model and has premier thermal quench self-protection. Besides, a full size double-pancake module was designed and manufactured in this paper, and it was tested in liquid nitrogen. The double-pancake module’s critical current is about 54 A and it is capable of working at persistent current model, whose average decay rate measured in 12 hours is 0.58%/day.

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