Hysteresis loss and the voltage-current relation in BSCCO tape superconductors

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Abstract

Hysteresis loss is an important factor when the performance of superconducting electric power devices is evaluated. The non-ideal voltage–current relation in Bi2Sr2Ca2Cu3Ox/Ag conductors is one of the reasons that critical state based loss relations do not accurately predict the AC loss in these conductors. In this paper the influence of the magnetic field dependent voltage–current relation on the hysteresis loss is discussed. An analytical high-field approach is used to demonstrate the effect of the finite steepness of the voltage–current relation on the induced current. Besides, a numerical technique is used to calculate also for applied magnetic fields below the penetration field the influence of both a field dependent critical current density and a field dependent steepness of the voltage–current relation. Both the magnitude of the hysteresis loss and the field dependence of the loss are influenced by the voltage–current relation. Especially for small applied fields the field dependence of the loss deviates from the cubic dependence that is predicted by the critical state model based relations. Results of calculations are compared with measured data. An intrinsic critical current density vs. magnetic field relation is determined in order to obtain agreement between measurements and calculations.
Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalPhysica C
Volume401
Issue number1-4
DOIs
Publication statusPublished - 2003
EventTopical Conference ICMC 2003: The Voltage Current Relation In Technical Superconductors: Fundamentals And Implications - University of Twente , Enschede, Netherlands
Duration: 25 May 200328 May 2003

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Tapes
tapes
Superconducting materials
Hysteresis
hysteresis
Electric potential
electric potential
Magnetic fields
critical current
conductors
magnetic fields
current density
slopes
Induced currents
electric power
alternating current
penetration

Keywords

  • METIS-213132
  • IR-58994
  • AC loss
  • BSCCO/Ag tapes
  • E–J relation
  • Hysteresis loss

Cite this

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title = "Hysteresis loss and the voltage-current relation in BSCCO tape superconductors",
abstract = "Hysteresis loss is an important factor when the performance of superconducting electric power devices is evaluated. The non-ideal voltage–current relation in Bi2Sr2Ca2Cu3Ox/Ag conductors is one of the reasons that critical state based loss relations do not accurately predict the AC loss in these conductors. In this paper the influence of the magnetic field dependent voltage–current relation on the hysteresis loss is discussed. An analytical high-field approach is used to demonstrate the effect of the finite steepness of the voltage–current relation on the induced current. Besides, a numerical technique is used to calculate also for applied magnetic fields below the penetration field the influence of both a field dependent critical current density and a field dependent steepness of the voltage–current relation. Both the magnitude of the hysteresis loss and the field dependence of the loss are influenced by the voltage–current relation. Especially for small applied fields the field dependence of the loss deviates from the cubic dependence that is predicted by the critical state model based relations. Results of calculations are compared with measured data. An intrinsic critical current density vs. magnetic field relation is determined in order to obtain agreement between measurements and calculations.",
keywords = "METIS-213132, IR-58994, AC loss, BSCCO/Ag tapes, E–J relation, Hysteresis loss",
author = "J.J. Rabbers and {ten Haken}, Bernard and {ten Kate}, {Herman H.J.}",
note = "Proceedings of the International Cryogenic Materials Conference: Topical Conference on the Voltage-Current Relation in Technical Superconductors University of Twente, Enschede, 25 May - 28 May 2003",
year = "2003",
doi = "10.1016/j.physc.2003.09.030",
language = "English",
volume = "401",
pages = "165--170",
journal = "Physica C",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-4",

}

Hysteresis loss and the voltage-current relation in BSCCO tape superconductors. / Rabbers, J.J.; ten Haken, Bernard; ten Kate, Herman H.J.

In: Physica C, Vol. 401, No. 1-4, 2003, p. 165-170.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Hysteresis loss and the voltage-current relation in BSCCO tape superconductors

AU - Rabbers, J.J.

AU - ten Haken, Bernard

AU - ten Kate, Herman H.J.

N1 - Proceedings of the International Cryogenic Materials Conference: Topical Conference on the Voltage-Current Relation in Technical Superconductors University of Twente, Enschede, 25 May - 28 May 2003

PY - 2003

Y1 - 2003

N2 - Hysteresis loss is an important factor when the performance of superconducting electric power devices is evaluated. The non-ideal voltage–current relation in Bi2Sr2Ca2Cu3Ox/Ag conductors is one of the reasons that critical state based loss relations do not accurately predict the AC loss in these conductors. In this paper the influence of the magnetic field dependent voltage–current relation on the hysteresis loss is discussed. An analytical high-field approach is used to demonstrate the effect of the finite steepness of the voltage–current relation on the induced current. Besides, a numerical technique is used to calculate also for applied magnetic fields below the penetration field the influence of both a field dependent critical current density and a field dependent steepness of the voltage–current relation. Both the magnitude of the hysteresis loss and the field dependence of the loss are influenced by the voltage–current relation. Especially for small applied fields the field dependence of the loss deviates from the cubic dependence that is predicted by the critical state model based relations. Results of calculations are compared with measured data. An intrinsic critical current density vs. magnetic field relation is determined in order to obtain agreement between measurements and calculations.

AB - Hysteresis loss is an important factor when the performance of superconducting electric power devices is evaluated. The non-ideal voltage–current relation in Bi2Sr2Ca2Cu3Ox/Ag conductors is one of the reasons that critical state based loss relations do not accurately predict the AC loss in these conductors. In this paper the influence of the magnetic field dependent voltage–current relation on the hysteresis loss is discussed. An analytical high-field approach is used to demonstrate the effect of the finite steepness of the voltage–current relation on the induced current. Besides, a numerical technique is used to calculate also for applied magnetic fields below the penetration field the influence of both a field dependent critical current density and a field dependent steepness of the voltage–current relation. Both the magnitude of the hysteresis loss and the field dependence of the loss are influenced by the voltage–current relation. Especially for small applied fields the field dependence of the loss deviates from the cubic dependence that is predicted by the critical state model based relations. Results of calculations are compared with measured data. An intrinsic critical current density vs. magnetic field relation is determined in order to obtain agreement between measurements and calculations.

KW - METIS-213132

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KW - BSCCO/Ag tapes

KW - E–J relation

KW - Hysteresis loss

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