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 …

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 …

AC loss modelling and measurement of superconducting transformers with coated-conductor Roebel-cable in low-voltage winding

E Pardo, M Staines, Z Jiang… - … Science and Technology, 2015 - iopscience.iop.org
Power transformers using a high temperature superconductor (HTS) ReBCO coated
conductor and liquid nitrogen dielectric have many potential advantages over conventional …

Conducting a survey of research on high temperature superconducting transformers

F Irannezhad, H Heydari - IEEE Transactions on Applied …, 2020 - ieeexplore.ieee.org
Given the unique electrical and magnetic properties of superconductors, high temperature
superconducting (HTS) transformers will play a central role in the electricity industry in the …

[HTML][HTML] Impact of Perlator on the cooling liquid flow and hottest point temperature of superconducting windings in HTS transformer

M Mahamed, M Yazdani-Asrami, V Behjat, A Yazdani… - Superconductivity, 2022 - Elsevier
The generated heat by the superconducting windings and the other parts such as current
leads in transformer increases the hottest point temperature (HPT) and causes the high …

HTS transformers leakage flux and short circuit force mitigation through optimal design of auxiliary windings

A Moradnouri, M Vakilian, A Hekmati, M Fardmanesh - Cryogenics, 2020 - Elsevier
Mitigation and control of leakage fluxes and short circuit forces needs much more attention,
for a high-temperature superconducting (HTS) transformer, than for a conventional one …

Optimization of distributive ratios of apportioned winding configuration in HTS power transformers for hysteresis loss and leakage flux reduction

A Ghabeli, M Yazdani-Asrami, MR Besmi… - … of Superconductivity and …, 2015 - Springer
In recent years, using high-temperature superconductor (HTS) transformers in transportation
and electrical power systems has attracted much interest. The major advantages of HTS …

Design and simulation of a 120 kVA single-phase HTS transformer

W Pi, T Wang, H Zhang, Y Yang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this paper, a 120 kVA single-phase HTS transformer operating in liquid nitrogen at 77 K
with high/low voltages of 6000 V/400 V was designed and simulated in a 2-D axisymmetric …

The influence of flux diverter structures on the AC loss of HTS transformer windings

S Wu, J Fang, L Fang, A Zhang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Compared to conventional transformers, high temperature superconducting (HTS)
transformers have higher efficiency and fewer hazards, whose main loss comes from the ac …

Mechanical force analysis in heavy-current HTS transformers based on field and current nonuniformity coupled analysis

H Heydari, F Faghihi - IEEE transactions on applied …, 2010 - ieeexplore.ieee.org
Mechanical stresses of magnetically induced origins are becoming more serious with the
trend of high-temperature superconductor (HTS) heavy-current transformer (HCT) …