MEMEP3D: HTS dynamo-type flux pump with a single and Multiple PM(s) and SMB in zero field cooling case

This model was shared by Asef Ghabeli, Institute for Technical Physics (ITEP), Karlsruhe Institute of Technology, Karlsruhe (Germany)

HTS Dynamo-Type Flux Pump

The MEMEP3D software simulates the behavior of high-temperature superconductors (HTS) in a flux pump configuration, where permanent magnets (PMs) induce currents in the superconducting material. This includes detailed modeling of resistive and electrostatic voltages, inductive effects from the PM's magnetic field, and screening currents within the superconducting tape. Additionally, it calculates the Lorentz forces acting between the PM and the HTS, offering insights into the flux pumping mechanism. Examples include a simple setup with a single PM and a more complex case involving two rotor disks with multiple PMs, demonstrating their cumulative effects on superconducting currents.

Superconducting Magnetic Bearing (SMB)

For superconducting magnetic bearings, the software models interactions between superconductors and permanent magnets, focusing on levitation forces, stability, and current screening effects. Simulations include the zero-field cooling condition, where the superconductor stabilizes the magnetic field created by PMs. This case highlights the system’s dynamic electromagnetic responses and provides a comprehensive understanding of the stability and operational efficiency of SMBs under different configurations.

Downloads

Reference

1. E. Pardo and M. Kapolka "3D computation of non-linear eddy currents: variational method and superconducting cubic bulk" 2017 J. Comput. Phys., 344:339–363, 
   https://doi.org/10.1016/j.jcp.2017.05.001 
   
   
2. M. Kapolka and E. Pardo "3D modelling of macroscopic force-free effects in superconducting thin films and rectangular prisms" 2019 Supercond. Sci. Technol., 32:054001, https://doi.org/10.1088/1361-6668/ab016a
   
   
3. A. Ghabeli, E. Pardo, M. Kapolka, “3D Modeling of a Superconducting Dynamo-Type Flux
   Pump”, Scientific Report, 11(1):10296, 2021, https://doi.org/10.1038/s41598-021-89596-4
   
   
4. Zhou, A. Ghabeli, M. Ainslie, F. Grilli, “Characterization of flux pump-charging of high
   temperature superconducting coils using coupled numerical models”, Supercond. Sci. Technol., 2023, 36(11):115002, https://doi.org/10.1088/1361-6668/acf739
   
   
5. A. Ghabeli, G. Fuchs, J. Hänisch, P. Zhou, O. de Haas, A. Morandi, F. Grilli, “3D modeling and measurement of HTS tape stacks in linear superconducting magnetic bearings”, Supercond. Sci. Technol., 2024, 37 (6):065003, https://doi.org/10.1088/1361-6668/ad3c9a