Theoretical AC susceptibility of superconducting multifilamentary tapes in a perpendicular field

Pardo, Enric; Sanchez, Alvaro; Navau, Carles

doi:10.1109/tasc.2003.812399

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…The frequency dependence of the imaginary part of magnetic susceptibility, which also represents the magnetic ac loss, has been reported in [8][9][10][11][12][13][14][15]. The exact expression that relates magnetic ac loss to the imaginary part of magnetic susceptibility is given in [5,[16][17][18][19]. Analytical studies of the frequency dependence have been reported in [15,20,21].…”

Section: Introductionmentioning

confidence: 99%

Frequency dependent magnetization of superconductor strip

Thakur¹,

Raj²,

Brandt³

et al. 2011

Supercond. Sci. Technol.

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The frequency dependence of magnetic ac loss of thin superconductor strip subjected to an ac magnetic field perpendicular to the surface of the strip is investigated by incorporating a flux creep model into the critical state model of Brandt and Indenbom. It is found that the reduced ac loss exhibits a maximum value at a frequency f m , which is a rapidly varying function of the applied ac magnetic field. At low magnetic field, f m becomes zero, and ac loss decreases with frequency as a power law (∼ f −2/n ). Whereas at high magnetic field f m becomes infinite and ac loss increases with frequency, still following the power law (∼ f 1/n ). The analytical results are substantiated with experimental data and the results of a 2D finite element simulation.

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Section: Introductionmentioning

confidence: 99%

Frequency dependent magnetization of superconductor strip

Thakur¹,

Raj²,

Brandt³

et al. 2011

Supercond. Sci. Technol.

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“…Nevertheless, this method cannot model the interaction between the PM and the closed HTS ring. [20][21][22][23][24][25][26][27] simulated the interaction between the superconductor and external magnetic field set by boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Dynamic modelling methodology for an HTS energy converter using moving mesh

Xin

et al. 2021

Supercond. Sci. Technol.

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Lots of high-temperature superconducting (HTS) devices which require current leads, slip rings or brushes have to face the challenges such as large heat load and complex structure. Recently, an HTS energy converter has been proposed, which can not only induce but also exploit persistent current in a closed HTS ring, realizing the conversion of mechanical energy—electromagnetic energy—mechanical energy wirelessly. In this work, a dynamic modelling method based on the H-formulation and moving mesh has been proposed to accurately simulate the electromagnetic performance of the HTS energy converter. The proposed modelling method can depict the induced current density inside the superconductor and magnetic field distribution, serving as a powerful tool to analyze the complex working principle of the HTS energy converter. The validity of the model has been verified by experimental results. Besides, effects of different parameters of the energy converter have been investigated in detail by our proposed model, to provide further insight into the design and applications of the device.

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