Calculating transport AC losses in stacks of high temperature superconductor coated conductors with magnetic substrates using FEM

2012 ◽  
Vol 472 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Mark D. Ainslie ◽  
Tim J. Flack ◽  
Archie M. Campbell
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Coated Conductors ◽  
Ac Losses ◽  
Transport Ac Losses

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.

Current sharing between the metallic and superconducting layers of high temperature superconductor coated conductors operated above their critical current

2011 ◽  
Vol 109 (3) ◽  
pp. 033915 ◽  
Author(s):  
Pierre Bernstein ◽  
Conor McLoughlin ◽  
Yohann Thimont ◽  
Frédéric Sirois ◽  
Jonathan Coulombe
Keyword(s):  
High Temperature ◽  
Critical Current ◽  
High Temperature Superconductor ◽  
Coated Conductors ◽  
Current Sharing

Progress in high temperature superconductor coated conductors and their applications

2008 ◽  
Vol 21 (3) ◽  
pp. 034005 ◽  
Author(s):  
A P Malozemoff ◽  
S Fleshler ◽  
M Rupich ◽  
C Thieme ◽  
X Li ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Coated Conductors

Modeling and verification of the equivalent circuit for high temperature superconducting partial-core transformer with ReBCO-coated conductors

2018 ◽  
Vol 37 (3) ◽  
pp. 1228-1243
Author(s):  
Daoyu Hu ◽  
Jianwen Zhang ◽  
Feng Gu ◽  
Zhuyong Li
Keyword(s):  
High Temperature ◽  
Equivalent Circuit ◽  
Modeling Method ◽  
Coated Conductors ◽  
Ac Losses ◽  
Content Type ◽  
High Temperature Superconducting ◽  
Iterative Computation ◽  
Core Losses ◽  
New Type

Purpose The purpose of this study is to propose a modeling method of the equivalent circuit for a new type of high-temperature superconducting partial-core transformer (HTS-PCT) made of ReBCO-coated conductors. Design/methodology/approach The modeling process is based on the “Steinmetz” equivalent circuit. The impedance components in the circuit are obtained by the calculations of the core losses and AC losses of the HTS windings by using theoretical methods. An iterative computation is also used to decide the equivalent resistances of the AC losses of the primary and secondary HTS windings. The reactance components in the circuit are calculated from the energy stored in the magnetic fields by finite element method. The validation of the modeling method is verified by experimental results Findings The modeling method of the equivalent circuit of HTS-PCT is valid, and an equivalent circuit for HTS-PCT is presented. Practical implications The equivalent circuit of HTS-PCT could be obtained by the suggested modeling method. Then, it is easy to analyze the characteristics of the HTS-PCT by its equivalent circuit. Moreover, the modeling method could also be useful for the design of a specific HTS-PCT. Originality/value The study proposes a modeling method of the HTS-PCT made of the second-generation HTS tapes, i.e. ReBCO-coated conductors.

Overview of High Temperature Superconductor Machines

2021 ◽  
Vol 4 (4) ◽  
pp. 25-33
Author(s):  
Bruno Douine ◽  
◽  
Hocine Menana ◽  
Kevin Berger ◽  
Jean Lеvеque ◽  
...  
Keyword(s):  
High Temperature ◽  
Power Systems ◽  
High Temperature Superconductor ◽  
High Temperature Superconductors ◽  
Synchronous Machine ◽  
Recent Time ◽  
Operating Principle ◽  
Electrical Machines ◽  
Synchronous Machines ◽  
Ac Losses

Electrical machines are important parts of different power systems. The application of high temperature superconductors (HTS) in electrical machines is very promising due to high transport currents. This paper reviews various topologies of superconducting motors and generators using HTS published in the literature in recent time. It begins with a brief presentation of the HTS material used in electrical machines. The description of AC losses and cryogenic systems is done afterwards. Then we offer a striking description of the various realizations of HTS electrical machines such as half HTS synchronous machines, fully HTS synchronous machine, machines with HTS bulks and stacks. Some of these machines are totally innovative compared to conventional ones and their operating principle is strictly related to the presence of HTS materials.

Cost-effective electrodeposition of an oxide buffer for high-temperature superconductor coated conductors

2014 ◽  
Vol 27 (6) ◽  
pp. 065016 ◽  
Author(s):  
Lina Sang ◽  
Yuming Lu ◽  
Yibing Zhang ◽  
Minjian Zhong ◽  
Hongmei Zhu ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Cost Effective ◽  
Coated Conductors
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