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Revisiting the homogenized domain model for fast simulation of AC transport power losses in first generation high temperature superconducting tapes and cables

Revisiting the homogenized domain model for fast simulation of AC transport power losses in first generation high temperature superconducting tapes and cables
Revisiting the homogenized domain model for fast simulation of AC transport power losses in first generation high temperature superconducting tapes and cables

Challenges, linked with FEM modelling of HTS power cables, include the long computational time required to simulate the small domains that Bi-2223 superconductors possess in a large device. To decrease that time, in this paper the models of AC transport power losses for a tape and a simplified cable are achieved by a homogenization technique via a ”filamentary-equivalent domain” approach. In it, a single homogenous domain with effective material properties is used to represent the superconducting material, where the domain would have the approximate shape of the multifilamentary region. In order to investigate its validity for a range of transport currents, including overcurrent, four tapes from the literature are modelled in three configurations. A simplified cable model is modelled via the homogenized model and an analytical equivalent circuit model. The homogenization technique can accurately predict the transport power losses of the majority of configurations while demonstrating fast computational times and is promising for simulation of real power cables.

AC Transport power loss, Bi-2223 superconducting tape, Finite element modelling, First generation cable, Homogenization
0921-4534
33-40
Petrov, A.N.
ab8e5194-1353-4792-b4be-196fb3ff4892
Pilgrim, J.A.
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Golosnoy, I.O.
40603f91-7488-49ea-830f-24dd930573d1
Petrov, A.N.
ab8e5194-1353-4792-b4be-196fb3ff4892
Pilgrim, J.A.
4b4f7933-1cd8-474f-bf69-39cefc376ab7
Golosnoy, I.O.
40603f91-7488-49ea-830f-24dd930573d1

Petrov, A.N., Pilgrim, J.A. and Golosnoy, I.O. (2019) Revisiting the homogenized domain model for fast simulation of AC transport power losses in first generation high temperature superconducting tapes and cables. Physica C: Superconductivity and its Applications, 557, 33-40. (doi:10.1016/j.physc.2018.12.006).

Record type: Article

Abstract

Challenges, linked with FEM modelling of HTS power cables, include the long computational time required to simulate the small domains that Bi-2223 superconductors possess in a large device. To decrease that time, in this paper the models of AC transport power losses for a tape and a simplified cable are achieved by a homogenization technique via a ”filamentary-equivalent domain” approach. In it, a single homogenous domain with effective material properties is used to represent the superconducting material, where the domain would have the approximate shape of the multifilamentary region. In order to investigate its validity for a range of transport currents, including overcurrent, four tapes from the literature are modelled in three configurations. A simplified cable model is modelled via the homogenized model and an analytical equivalent circuit model. The homogenization technique can accurately predict the transport power losses of the majority of configurations while demonstrating fast computational times and is promising for simulation of real power cables.

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More information

Accepted/In Press date: 12 December 2018
e-pub ahead of print date: 14 December 2018
Published date: 15 February 2019
Keywords: AC Transport power loss, Bi-2223 superconducting tape, Finite element modelling, First generation cable, Homogenization

Identifiers

Local EPrints ID: 428971
URI: https://eprints.soton.ac.uk/id/eprint/428971
ISSN: 0921-4534
PURE UUID: 44fa5fba-8070-466d-ae93-d5d4e2d48e3c
ORCID for A.N. Petrov: ORCID iD orcid.org/0000-0003-4820-5227
ORCID for J.A. Pilgrim: ORCID iD orcid.org/0000-0002-2444-2116

Catalogue record

Date deposited: 15 Mar 2019 17:30
Last modified: 20 Jul 2019 00:55

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Contributors

Author: A.N. Petrov ORCID iD
Author: J.A. Pilgrim ORCID iD
Author: I.O. Golosnoy

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