TY - JOUR
T1 - Direct current voltage increment due to ac coupling in a high Tc superconducting coil
AU - Shaked, N.
AU - Al-Omari, I. A.
AU - Friedman, A.
AU - Wolfus, Y.
AU - Sinvani, M.
AU - Shaulov, A.
AU - Yeshurun, Y.
PY - 1998
Y1 - 1998
N2 - The voltage-current characteristics of a superconducting coil, made of multifilamentary silver-sheathed Bi2Sr2Ca2Cu3O10+δ tape, are investigated. We find that a small ac current Iac superimposed on a relatively large dc current Idc causes a significant increase in the coil dc voltage, approximately proportional to Idc, Iac2, and the ac frequency. We attribute this effect to the nonlinear magnetoresistance of the coil, and discuss its significance in power applications of high Tc superconducting coils, such as fault current limiters and superconducting magnetic energy storage devices.
AB - The voltage-current characteristics of a superconducting coil, made of multifilamentary silver-sheathed Bi2Sr2Ca2Cu3O10+δ tape, are investigated. We find that a small ac current Iac superimposed on a relatively large dc current Idc causes a significant increase in the coil dc voltage, approximately proportional to Idc, Iac2, and the ac frequency. We attribute this effect to the nonlinear magnetoresistance of the coil, and discuss its significance in power applications of high Tc superconducting coils, such as fault current limiters and superconducting magnetic energy storage devices.
UR - http://www.scopus.com/inward/record.url?scp=0032576519&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032576519&partnerID=8YFLogxK
U2 - 10.1063/1.122940
DO - 10.1063/1.122940
M3 - Article
AN - SCOPUS:0032576519
SN - 0003-6951
VL - 73
SP - 3932
EP - 3934
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 26
ER -