scholarly journals The peculiarities of magnetization processes in layered high- temperature superconductors with ferromagnetic defects under applying of transport current and external magnetic field

2015 ◽  
Vol 574 ◽  
pp. 012129
Author(s):  
V A Kashurnikov ◽  
A N Maksimova ◽  
I A Rudnev
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
External Magnetic Field ◽  
High Temperature Superconductors ◽  
Transport Current ◽  
Magnetization Processes

scholarly journals Measurements and Analysis of AC Losses in HTS Windings of Electrical Machine for Different Operation Modes

2021 ◽  
Vol 11 (6) ◽  
pp. 2741
Author(s):  
Sergey Zanegin ◽  
Nikolay Ivanov ◽  
Vasily Zubko ◽  
Konstantin Kovalev ◽  
Ivan Shishov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
High Temperature Superconductor ◽  
High Temperature Superconductors ◽  
Transport Current ◽  
Operating Conditions ◽  
Ac Losses ◽  
Electrical Machine ◽  
2Nd Generation ◽  
Motor Mode

The article is devoted to the study of losses in devices based on high-temperature superconductors of the 2nd generation. The complexity of the devices under study increases from a single rack coil to a winding assembled from several coils, and finally to an electric machine operating in generator mode. This is the way to experimentally study the behavior of 2nd generation high temperature superconductor (2G HTS) carrying a transport current in various conditions: self-field, external DC, and AC magnetic field. Attention is also paid to the losses in the winding during its operation from the inverter, which simulates the operating conditions in the motor mode of a propulsion system.

On the Resistive State of High Temperature Superconductors in Magnetic Field

1989 ◽  
Vol 169 ◽  
Author(s):  
Y. Iye ◽  
S. Nakamura ◽  
T. Tamegai ◽  
T. Terashima ◽  
Y. Bando
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
Epitaxial Film ◽  
High Temperature Superconductors ◽  
Experimental Studies ◽  
Transport Current ◽  
Resistive State ◽  
Flux Dynamics ◽  
The Magnetic Field ◽  
Peculiar Behavior

AbstractExperimental studies of the resistive state of high temperature superconductors in the mixed state were carried out on thin film samples of YBa2Cu3O7‐y and Bi2Sr2CaCu2Os+y. Precise angular dependence measurements on Yba2Cu3O7‐y epitaxial film have revealed not only the critical field anisotropy with respect to the a, b, and c‐axes but also a feature associated with twin boundaries. Dependence on the angle between the transport current and the magnetic field is investigated and discussed in terms of flux dynamics in highly anisotropic layered superconductors. Peculiar behavior of the Hall effect in the resistive state is reported.

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