scholarly journals Thermal Behaviour and Refrigeration of High-Temperature Superconducting Fault Current Limiters and Microlimiters

10.5772/38561 ◽  
2012 ◽  
Author(s):  
J.A. Veira ◽  
M.R. Osorio ◽  
F. Vidal
Keyword(s):  
High Temperature ◽  
Thermal Behaviour ◽  
Fault Current ◽  
High Temperature Superconducting ◽  
Fault Current Limiters

scholarly journals Investigations on Quench Recovery Characteristics of High-Temperature Superconducting Coated Conductors for Superconducting Fault Current Limiters

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 259
Author(s):  
Wei Chen ◽  
Peng Song ◽  
Hao Jiang ◽  
Jiahui Zhu ◽  
Shengnan Zou ◽  
...  
Keyword(s):  
High Temperature ◽  
Smart Grids ◽  
Recovery Time ◽  
Coated Conductors ◽  
Transfer Model ◽  
Fault Current ◽  
High Temperature Superconducting ◽  
Fault Current Limiters ◽  
Recovery Characteristic ◽  
The Impact

Superconducting fault current limiters (SFCLs) are attracting increasing attention due to their potential for use in modern smart grids or micro grids. Thanks to the unique non-linear properties of high-temperature-superconducting (HTS) tapes, an SFCL is invisible to the grid with faster response compared to traditional fault current limiters. The quench recovery characteristic of an HTS tape is fundamental for the design of an SFCL. In this work, the quench recovery time of an HTS tape was measured for fault currents of different magnitudes and durations. A global heat transfer model was developed to describe the quench recovery characteristic and compared with experiments to validate its effectiveness. Based on the model, the influence of tape properties on the quench recovery time was discussed, and a safe margin for the impact energy was proposed.

scholarly journals Modeling the Heating in a High Temperature Superconducting Current Carrying Element in Fault Current Limiters

2020 ◽  
Vol 9 (2) ◽  
pp. 1792-1798
Keyword(s):  
High Temperature ◽  
Comsol Multiphysics ◽  
Fault Current ◽  
Cross Sectional ◽  
High Temperature Superconducting ◽  
Different Types ◽  
Fault Current Limiters ◽  
Heating Up ◽  
The Impact ◽  
Superconducting Current

Mathematical model was developed for modeling the increase temperature in high temperature superconducting (HTS) current carrying element in superconducting fault current limiters (SFCL). The variation in the heating up of HTS element along its length is a result primarily of the variation in its resistance that has to do with the manufacturing process employed to make it.The model was developed and mathematical modeling of the process was carried out in the Comsol MultiPhysics software package. Element that was tested was a 12 mm wide stack of three stainless steel tapes and three HTS soldered to each other. In order to get more precise parameters for the models the cross-sectional thermal conductivity was measured for the stacks of HTS of two different types. The estimates obtained using the model were very close to experimental data. The impact was also studied of the spread of the electrical resistance of HTS on how fast the current carrying element made from it heated up.

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