AC-induced DC voltage in HTS coil

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

doi:10.1016/S0921-4534(98)00444-4

AC-induced DC voltage in HTS coil

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

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

The interplay between AC and DC currents in a High-T_c Superconducting (HTS) coil, made of multifilamentary silver-sheathed Bi-2223 tape, was investigated. We observed that the application of a small sinusoidal current in the frequency range of 50-500 Hz into the coil, while it is already carrying a DC current in the range of 16-22.5 A, caused an increase in the coil DC voltage. The DC voltage increment due to the AC signal is found to increase linearly with frequency and quadratically with amplitude. The DC voltage increment increases as the coil current grows towards its critical value of 22.2 A. This result may be important in some power applications such as fault current limiters (FCL) and superconducting magnet energy storage (SMES) based on HTS coils.

Original language	English
Pages (from-to)	111-115
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	310
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4534(98)00444-4
Publication status	Published - Dec 1998
Externally published	Yes

Keywords

Bi-2223 tape
Critical current density
Dynamic resistance
Superconducting coil

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(98)00444-4

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title = "AC-induced DC voltage in HTS coil",

abstract = "The interplay between AC and DC currents in a High-Tc Superconducting (HTS) coil, made of multifilamentary silver-sheathed Bi-2223 tape, was investigated. We observed that the application of a small sinusoidal current in the frequency range of 50-500 Hz into the coil, while it is already carrying a DC current in the range of 16-22.5 A, caused an increase in the coil DC voltage. The DC voltage increment due to the AC signal is found to increase linearly with frequency and quadratically with amplitude. The DC voltage increment increases as the coil current grows towards its critical value of 22.2 A. This result may be important in some power applications such as fault current limiters (FCL) and superconducting magnet energy storage (SMES) based on HTS coils.",

keywords = "Bi-2223 tape, Critical current density, Dynamic resistance, Superconducting coil",

author = "Al-Omari, {I. A.} and N. Shaked and A. Friedman and Y. Wolfus and A. Shaulov and M. Sinvani and Y. Yeshurun",

note = "Funding Information: This research has been supported by the Israel Ministry of Infrastructure. A. Friedman acknowledges a support from the Israel Ministry of Science. I.A. Al-Omari acknowledges a support from Jordan University of Science and Technology.",

year = "1998",

month = dec,

doi = "10.1016/S0921-4534(98)00444-4",

language = "English",

volume = "310",

pages = "111--115",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

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TY - JOUR

T1 - AC-induced DC voltage in HTS coil

AU - Al-Omari, I. A.

AU - Shaked, N.

AU - Friedman, A.

AU - Wolfus, Y.

AU - Shaulov, A.

AU - Sinvani, M.

AU - Yeshurun, Y.

N1 - Funding Information: This research has been supported by the Israel Ministry of Infrastructure. A. Friedman acknowledges a support from the Israel Ministry of Science. I.A. Al-Omari acknowledges a support from Jordan University of Science and Technology.

PY - 1998/12

Y1 - 1998/12

N2 - The interplay between AC and DC currents in a High-Tc Superconducting (HTS) coil, made of multifilamentary silver-sheathed Bi-2223 tape, was investigated. We observed that the application of a small sinusoidal current in the frequency range of 50-500 Hz into the coil, while it is already carrying a DC current in the range of 16-22.5 A, caused an increase in the coil DC voltage. The DC voltage increment due to the AC signal is found to increase linearly with frequency and quadratically with amplitude. The DC voltage increment increases as the coil current grows towards its critical value of 22.2 A. This result may be important in some power applications such as fault current limiters (FCL) and superconducting magnet energy storage (SMES) based on HTS coils.

AB - The interplay between AC and DC currents in a High-Tc Superconducting (HTS) coil, made of multifilamentary silver-sheathed Bi-2223 tape, was investigated. We observed that the application of a small sinusoidal current in the frequency range of 50-500 Hz into the coil, while it is already carrying a DC current in the range of 16-22.5 A, caused an increase in the coil DC voltage. The DC voltage increment due to the AC signal is found to increase linearly with frequency and quadratically with amplitude. The DC voltage increment increases as the coil current grows towards its critical value of 22.2 A. This result may be important in some power applications such as fault current limiters (FCL) and superconducting magnet energy storage (SMES) based on HTS coils.

KW - Bi-2223 tape

KW - Critical current density

KW - Dynamic resistance

KW - Superconducting coil

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DO - 10.1016/S0921-4534(98)00444-4

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SN - 0921-4534

VL - 310

SP - 111

EP - 115

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-4

ER -

AC-induced DC voltage in HTS coil

Abstract

Keywords

ASJC Scopus subject areas

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