AC losses in circular arrangements of parallel superconducting tapes

1998 ◽  
Vol 310 (1-4) ◽  
pp. 192-196 ◽  
Author(s):  
A. Kühle ◽  
C. Træholt ◽  
M. Däumling ◽  
S.K. Olsen ◽  
O. Tønnesen
2010 ◽  
Vol 23 (2) ◽  
pp. 025031 ◽  
Author(s):  
Yasunori Mawatari ◽  
Alexis P Malozemoff ◽  
Teruo Izumi ◽  
Keiich Tanabe ◽  
Noboru Fujiwara ◽  
...  

1996 ◽  
Vol 32 (4) ◽  
pp. 2788-2791 ◽  
Author(s):  
L. Jansak ◽  
F. Chovanec ◽  
J. Kokavec ◽  
M. Jergel

2003 ◽  
Vol 17 (04n06) ◽  
pp. 528-533 ◽  
Author(s):  
RICCARDO TEBANO ◽  
RENATA MELE ◽  
VINCENZO BOFFA ◽  
FEDOR GÖMÖRY ◽  
FRANTISEK STRYCEK ◽  
...  

Reduction of AC losses for large-scale applications of superconductors is a critical issue. Therefore, the quantitative evaluation of AC losses is important for the development of superconductors and their applications to electrical power systems. The development of numerical models that simulate the electromagnetic phenomena inside superconductors allows to understand the electromagnetic behavior of superconductors and to evaluate the AC loss properties. Following an approach proposed by Brandt in several papers, a numerical model was developed in order to study the AC properties of superconducting tapes in different geometrical arrangements and with time dependent current and magnetic field. Here we show an example for simple single-layer model cables to show how this rather simple and versatile numerical approach allows optimizing configurations for actual operational conditions.


2007 ◽  
Vol 1001 ◽  
Author(s):  
Francesco Grilli ◽  
Stephen P. Ashworth

AbstractCertain practical applications of YBCO coated conductors (CC) involve superconducting tapes wound in coils. In such a configuration the superconducting tape is arranged as closely packed turns, leading to an increase of the magnetic field generated by the current in the tapes and, consequently, a significant increase in the AC losses, with respect to an ‘isolated’ tape. In order to predict and reduce the refrigeration requirements of applications, it is therefore very important to be able to quantify the magnitude of such AC losses, both experimentally and by means of numerical calculations.


1996 ◽  
Vol 32 (4) ◽  
pp. 2792-2795 ◽  
Author(s):  
J. Paasi ◽  
M. Lahtinen ◽  
D. Aized ◽  
S. Fleshler ◽  
G. Snitchler ◽  
...  

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