No-insulation high-temperature superconductor winding technique for electrical aircraft propulsion

Y Wang, F Weng, J Li, J Šouc, F Gömöry… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
High-temperature superconductor (HTS) machine is a promising candidate for the electrical
aircraft propulsion due to its great advantage in high power density. However, the HTS …

Finite-element modelling of no-insulation HTS coils using rotated anisotropic resistivity

RC Mataira, MD Ainslie, RA Badcock… - Superconductor …, 2020 - iopscience.iop.org
The no-insulation (NI) winding method is an effective technique for winding coils from high-$
T_ {\rm c} $ superconductors (HTS). NI coils are electrically and thermally robust due to their …

Electromagnetic shielding technique for no-insulation superconducting rotor windings in electrical aircraft propulsion

Y Fu, Y Wang, W Xue, Q Yang, L Yang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
No-insulation (NI) high-temperature superconductor (HTS) machine is a kind of synchronous
semisuperconducting machine with the high power density and enhanced thermal stability …

Analysis of nonuniform contact resistivity distribution on no-insulation HTS racetrack coil

G Kim, U Bong, C Im, J Yoon, H Park… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This article presents a numerical analysis and experiment to investigate a contact resistivity
distribution of a no-insulation (NI) high-temperature superconductor (HTS) racetrack coil …

A customized electric heater to mitigate screening current by optimal control on temperature distribution in a high-temperature superconductor coil

J Bang, J Kim, JT Lee, G Kim, J Park, SH Park… - Journal of Applied …, 2022 - pubs.aip.org
The so-called screening current in a high temperature superconductor (HTS) is a well-
known phenomenon that has detrimental effects on performance of an HTS magnet. To date …

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 …

Study of the demagnetization behavior of no-insulation persistent-current mode HTS coils under external AC fields by 3D FEM simulation

Z Zhong, W Wu, G Ma, Z Jin - Superconductor Science and …, 2024 - iopscience.iop.org
The no-insulation (NI) winding technique is promising for applications in the persistent-
current mode (PCM) operation of high-temperature superconducting (HTS) coils. To produce …

Experimental setup for measurement of AC loss in HTS under rotating magnetic field

WA Soomro, Y Guo, H Lu, J Jin, B Shen, J Zhu - Energies, 2022 - mdpi.com
High-temperature superconducting materials have shown great potential for the design of
large-scale industry applications. However, they are complicated under AC conditions …

Maximum torque per ampere control scheme considering NI HTS field coil behavior for synchronous motor with salient rotor core

J Yoon, U Bong, JK Cha, J Park… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper presents characteristics analysis results of no-insulation (NI) high-temperature
superconducting (HTS) motor with saliency according to motor control schemes. In case of a …

An electromagnetic design of a fully superconducting generator for wind application

Y Liu, F Grilli, J Cao, L Li, C Zhang, M Wang, F Xu, J Lin… - Energies, 2021 - mdpi.com
A fully superconducting wind generator employs superconductors in stator and rotor to
enable high torque density and low weight, that is, enable an ultra-light electric machine for …