Overview of H-Formulation: A Versatile Tool for Modeling Electromagnetics in High-Temperature Superconductor Applications

B Shen, F Grilli, T Coombs - IEEE access, 2020 - ieeexplore.ieee.org
This paper reviews the modeling of high-temperature superconductors (HTS) using the
finiteelement method (FEM) based on the H-formulation of Maxwell's equations. This …

Alternating current loss of superconductors applied to superconducting electrical machines

H Zhang, Z Wen, F Grilli, K Gyftakis, M Mueller - Energies, 2021 - mdpi.com
Superconductor technology has recently attracted increasing attention in power-generation-
and electrical-propulsion-related domains, as it provides a solution to the limited power …

[HTML][HTML] Review of high temperature superconducting flux pumps

W Wang, J Wei, C Yang, C Wu, H Li - Superconductivity, 2022 - Elsevier
High temperature superconducting (HTS) magnets conduct DC currents ranging from
hundreds to tens of thousands of amperes. To achieve such DC output amplitudes …

Dynamic loss and magnetization loss of HTS coated conductors, stacks, and coils for high-speed synchronous machines

H Zhang, P Machura, K Kails, H Chen… - Superconductor …, 2020 - iopscience.iop.org
Dynamic loss is an essential parameter to consider for the design of high temperature
superconducting (HTS) synchronous machine windings. For aerospace electric propulsion …

Dynamic resistance and dynamic loss in a ReBCO superconductor

H Zhang, B Shen, X Chen, Z Jiang - Superconductor Science and …, 2022 - iopscience.iop.org
Dynamic resistance is a time-averaged direct current (DC) resistance in superconducting
materials, which typically occurs when a superconductor is carrying a transport DC while …

[HTML][HTML] Origin of the DC output voltage from a high-Tc superconducting dynamo

RC Mataira, MD Ainslie, RA Badcock… - Applied Physics …, 2019 - pubs.aip.org
Despite their proven ability to output DC currents of> 100 A, the physical mechanism which
underpins the operation of a high-T c superconducting (HTS) dynamo is still debated widely …

A temperature-dependent multilayer model for direct current carrying HTS coated-conductors under perpendicular AC magnetic fields

J Ma, J Geng, WK Chan, J Schwartz… - Superconductor …, 2020 - iopscience.iop.org
When a type II superconductor carrying a direct current is subjected to a perpendicular
oscillating magnetic field, a direct current (DC) voltage will appear. This voltage can either …

[HTML][HTML] Time-dependent development of dynamic resistance voltage of superconducting tape considering heat accumulation

C Li, Y **ng, Y **n, B Li, F Grilli - Superconductivity, 2023 - Elsevier
In flux pumps, motors and superconducting magnets, the high temperature superconductor
(HTS) coated conductor frequently carries a DC transport current when an oscillating …

Mechanism of the High- Superconducting Dynamo: Models and Experiment

R Mataira, M Ainslie, A Pantoja, R Badcock… - Physical Review Applied, 2020 - APS
High-T c superconducting (HTS) dynamos are experimentally proven devices that can
produce large (more than a kiloamp) dc currents in superconducting circuits, without the …

Calculations of the AC losses in superconducting cables and coils: Neumann boundary conditions of the T–A formulation

S Wang, H Yong, Y Zhou - Superconductor Science and …, 2022 - iopscience.iop.org
Numerical techniques play an important role in the design of high-temperature
superconductor (HTS) systems. In the superconductivity community, the T–A formulation of …