Welding. Micro joining of 2nd generation high temperature superconductors

10.3403/30325072 ◽

2018 ◽

Keyword(s):

High Temperature ◽

High Temperature Superconductors ◽

2Nd Generation

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

Applied Sciences ◽

10.3390/app11062741 ◽

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.

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Development of model setup and study of levitation and lateral stabilization of the platform with the use of high-temperature superconductors of the 2nd generation

Transportation systems and technology ◽

10.17816/transsyst20151262-84 ◽

2015 ◽

Vol 1 (2) ◽

pp. 62-84 ◽

Cited By ~ 1

Author(s):

Yu F Antonov ◽

N K Danilov ◽

S A Kaznacheev ◽

Ya I Melnikov ◽

E I Morozova ◽

...

Keyword(s):

High Temperature ◽

Permanent Magnets ◽

High Temperature Superconductors ◽

Experimental Setup ◽

2Nd Generation ◽

Lateral Forces ◽

Measurement Results ◽

The Creation ◽

Model Setup ◽

The Stability

The article describes the creation of an experimental setup to investigate the effect of magnetostatic levitation using magnetic rail (as a base) and platform with permanent magnets in combination with bulk high-temperature superconductors of the 2nd generation. The article provides evidence of the stability of the hybrid pole, the measurement results of the vertical and lateral forces and the dependence of the levitation gap of the sequence of operations of cooling high-temperature superconductors of the 2nd generation. The article provides evidence of the ability to achieve static levitation with a gap of more than 10 mm when using bulk high-temperature superconductors of the 2nd generation and the efficiency of their application to provide lateral stabilization.

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