Computation of losses in HTS under the action of varying magnetic fields and currents

F Grilli, E Pardo, A Stenvall, DN Nguyen… - IEEE Transactions …, 2013 - ieeexplore.ieee.org
Numerical modeling of superconductors is widely recognized as a powerful tool for
interpreting experimental results, understanding physical mechanisms, and predicting the …

3D modeling of high-Tc superconductors by finite element software

M Zhang, TA Coombs - Superconductor science and technology, 2011 - iopscience.iop.org
Abstract A three-dimensional (3D) numerical model is proposed to solve the electromagnetic
problems involving transport current and background field of a high-T c superconducting …

Electromagnetic modelling of superconductors with a smooth current–voltage relation: variational principle and coils from a few turns to large magnets

E Pardo, J Šouc, L Frolek - Superconductor Science and …, 2015 - iopscience.iop.org
Many large-scale applications require electromagnetic modelling with extensive numerical
computations, such as magnets or three-dimensional (3D) objects like transposed …

A full 3D time-dependent electromagnetic model for Roebel cables

VMR Zermeno, F Grilli, F Sirois - Superconductor Science and …, 2013 - iopscience.iop.org
High temperature superconductor Roebel cables are well known for their large current
capacity and low AC losses. For this reason they have become attractive candidates for …

Macroscopic modeling of magnetization and levitation of hard type-II superconductors: The critical-state model

C Navau, N Del-Valle, A Sanchez - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
We review the modeling progress of the magnetic response of hard type-II superconductors
(SCs) using the critical-state model (CSM). We focus on magnetization loops when a uniform …

Crossed-magnetic-field experiments on stacked second generation superconducting tapes: Reduction of the demagnetization effects

M Baghdadi, HS Ruiz, TA Coombs - Applied Physics Letters, 2014 - pubs.aip.org
The crossed-magnetic-field effect on the demagnetization factor of stacked second
generation (2G) high temperature superconducting tapes is presented. The superconducting …

[PDF][PDF] Electromagnetic modeling of superconductors

E Pardo, F Grilli - Num. Model. Supercond. Appl., 2023 - library.oapen.org
The outline of this chapter is as follows. Section 1.1 introduces the electromagnetic
quantities and basic equations. Next, Section 1.2, we present analytical formulas that also …

Time-variant magnetic field, voltage, and loss of no-insulation (NI) HTS magnet induced by dynamic resistance generation from external AC fields

Z Zhong, W Wu, L Lu, B Shen, F Dong… - Superconductor …, 2023 - iopscience.iop.org
High-temperature superconducting (HTS) coils serving as DC magnets can be operated
under non-negligible AC fields, like in synchronous machines of maglev trains and wind …

Cross-field demagnetization of stacks of tapes: 3D modeling and measurements

M Kapolka, E Pardo, F Grilli, A Baskys… - Superconductor …, 2020 - iopscience.iop.org
Stacks of superconducting (SC) tapes can trap much higher magnetic fields than
conventional magnets. This makes them very promising for motors and generators …

Investigation of demagnetization in HTS stacked tapes implemented in electric machines as a result of crossed magnetic field

M Baghdadi, HS Ruiz, JF Fagnard… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
This paper investigates the practical effectiveness of employing superconducting stacked
tapes to superconducting electric machinery. The use of superconducting bulks in various …