Direct current voltage increment due to ac coupling in a high Tc superconducting coil

N. Shaked; I. A. Al-Omari; A. Friedman; Y. Wolfus; M. Sinvani; A. Shaulov; Y. Yeshurun

doi:10.1063/1.122940

Direct current voltage increment due to ac coupling in a high T_c superconducting coil

N. Shaked, I. A. Al-Omari, A. Friedman, Y. Wolfus, M. Sinvani, A. Shaulov, Y. Yeshurun

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The voltage-current characteristics of a superconducting coil, made of multifilamentary silver-sheathed Bi₂Sr₂Ca₂Cu₃O_10+δ tape, are investigated. We find that a small ac current I_ac superimposed on a relatively large dc current I_dc causes a significant increase in the coil dc voltage, approximately proportional to I_dc, I_ac², and the ac frequency. We attribute this effect to the nonlinear magnetoresistance of the coil, and discuss its significance in power applications of high T_c superconducting coils, such as fault current limiters and superconducting magnetic energy storage devices.

Original language	English
Pages (from-to)	3932-3934
Number of pages	3
Journal	Applied Physics Letters
Volume	73
Issue number	26
DOIs	https://doi.org/10.1063/1.122940
State	Published - 1998

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abstract = "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.",

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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.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Direct current voltage increment due to ac coupling in a high T_c superconducting coil

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