Title :
Development of a 400 m YBCO racetrack coil for HTS machine applications
Author :
Yu Dong Jiang ; Ye Yang ; Xiao Wei Song ; Min Zhang ; Zhi Yu Zhang ; Ming Wei Kuang ; Jian Dong Wu ; Yi Li ; Chen Gu
Author_Institution :
Intell. Equip. & Control Technol. Inst, Dongfang Electr. Corp. R&D Center, Chengdu, China
Abstract :
A YBCO racetrack coil was developed for HTS machine applications. The coil was constructed as step-type to fit in the limited space of the machine rotor. Two double-pancake (DP) windings were fabricated for the whole coil that has used 388 m of YBCO wires purchased from American Superconductor Corporation (AMSC). A finite-element method (FEM) software was used to model the coil and the critical currents for each DB winding were estimated. The winding process was introduced in details, including a few accidents occurred during the process. The coil was tested in a liquid nitrogen tank, and the results shows good compliance with the simulation results, which indicates no degradation areas in the windings.
Keywords :
barium compounds; critical current density (superconductivity); electrical accidents; finite element analysis; high-temperature superconductors; rotors; superconducting coils; superconducting machines; yttrium compounds; AMSC; American Superconductor Corporation; DP windings; FEA; HTS machine applications; YBCO; YBCO racetrack coil; accidents; critical current; double pancake windings; finite element method; liquid nitrogen tank; machine rotor; size 388 m; size 400 m; Coils; Degradation; Integrated circuits; Windings; Wires; Yttrium barium copper oxide; HTS machine; YBCO coil; racetrack coil;
Conference_Titel :
Applied Superconductivity and Electromagnetic Devices (ASEMD), 2013 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0068-8
DOI :
10.1109/ASEMD.2013.6780830
