9th International Workshop on Numerical Modelling of High Temperature Superconductors - HTS 2024

Session

Session 2:Innovative methods and tools for modelling large-scale HTS systems

11 Jun 2024, 14:00

Parkhotel Bad Zurzach, Switzerland

23. Modelling a single-layer CORT cable with coordinate transformation

Benoît Vanderheyden (University of Liège, Belgium)

11/06/2024, 14:00

Oral

We present a finite element model for a single-layer CORT cable composed of three coated conductors wound around a tube and carrying an AC current. We use a coordinate transformation that takes into account the helicoidal symmetry of the cable and enables the problem to be studied with an equivalent two-dimensional model. We show that this model correctly captures the full three-dimensional...

7. A frequency domain finite element model for simulating high temperature superconductors using the J-A and T-A formulations

Frederic Trillaud (Universidad Nacional Autónoma de Mexico), Dr Gabriel dos Santos (Electrical Engineering Department, Rio de Janeiro State University)

11/06/2024, 14:20

Oral

AC losses, current density and the magnetic field are important variables for designing high-temperature superconducting (HTS) devices. The preferred method to compute those parameters is the finite element method. In this framework, most of the computational effort has been carried out in the time domain even though the interest may lay in the steady-state regime. For the latter, it is...

50. Influence of ferromagnetic structure addition on the field trapping ability of MgB2 bulk samples

Laura Gozzelino (Politecnico di Torino)

11/06/2024, 14:40

Oral

Superconductors have revolutionized magnet technology, surpassing the limitations of traditional coils and permanent magnets. Relying on the results of trapped field measurements carried out on MgB$_2$ discs, in this paper we numerically investigate the field trapping ability of hybrid layouts where ferromagnetic (FM) structures were added to a superconducting (SC) disc. To this aim, through...

26. Recent Advances in BELFEM and Toward a Community-Driven Material Database for HTS Modeling

Dr Christian Messe (Berkeley Lab)

11/06/2024, 15:30

Invited Oral

We present the latest progress within the
BELFEM project, with a focus on the electromagneticthermal
modeling of high-temperature superconducting
cables and magnets. We discuss a recent validation and
benchmark against COMSOL and GetDP, and provide a
brief outlook onto current fields of research.
A primary challenge encountered in the accurate modeling
of such systems is the...

27. Electrothermal modeling of HTS coils using homogenization and different formulations

Anang Dadhich (Institute of Electrical Engineering, Slovak Academy of Sciences)

11/06/2024, 16:00

Oral

HTS coils are used in various applications, however, it is complicated and time-consuming to model their multiphysics behavior. We have developed a simple homogenized method to accurately simulate HTS coils, in the context of electrothermal quench. Different numerical models are benchmarked for these computations, and they show very good agreement for different configurations of homogenized method.

31. H-phi Simulations for Pre-Quench and Minimum Quench Energy in HTS Tapes

Gregory Giard (Polytechnique Montreal)

11/06/2024, 16:20

Oral

We introduce a H-phi magneto-thermal model to predict the dynamics of quench nucleation in HTS tapes by finite-element simulations. This superconductor model uses an original interpolation regime between the usual power-law model and the normal state resistivity, based using Bezier curves to allow a smooth transition between these two regimes. It is shown that this explicit modeling of the...

41. Lumped Parameter Model for Simulation of HTS Cables in Power System Simulators

Wescley Tiago Batista de Sousa (Karlsruhe Institute of Technology)

11/06/2024, 16:40

Oral

Due the integration of superconducting technologies into electrical networks around the world, its precise simulations in power grids are increasingly becoming a desirable outcome. Sophisticated methods have been used to model superconducting power cables and, in this way, predict its behavior under different conditions. Most of the available models, however, are not advisable to be used and...

10. Introduction of the magnetic scalar potential $\phi$ in the T-A and J-A formulations for efficient electromagnetic simulations of High Temperature Superconductors

Gabriel dos Santos (State University of Rio de Janeiro), Frederic Trillaud (Universidad Nacional Autónoma de Mexico)

12/06/2024, 13:30

Invited Oral

Superconducting devices are likely to play a crucial role in the energy transition addressing power generation, transmission, distribution systems, transportation and even quantum computing. Therefore, developing models that enable fast and highly accurate simulations is important for advancing the technology. This work introduces the \textbf{T}-\textbf{A}-$\phi$ and...

28. A physic-guided recurrent machine learning model for long-time prediction of quench dynamics

Prof. Frédéric Sirois (Polytechnique Montreal), Nicolas Breault (Polytechnique Montréal)

12/06/2024, 14:00

Invited Oral

This work presents a PGRML model for predicting superconducting tape temperature profiles during a quench. The model accurately forecasts the nonlinear dynamics involved in a drastically reduced computational time with respect to finite element models.