A 3D Finite Element Method Approach for Analyzing Different Short Circuit Types in a Saturated Iron Core Fault Current Limiter

2022 ◽  
pp. 1-1
Author(s):  
Gabriel dos Santos ◽  
Flavio Goulart Martins ◽  
Felipe Sass ◽  
Guilherme Goncalves Sotelo ◽  
Antonio Morandi ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Short Circuit ◽  
Iron Core ◽  
Fault Current ◽  
Fault Current Limiter ◽  
3D Finite Element ◽  
Current Limiter ◽  
3D Finite Element Method ◽  
Method Approach

scholarly journals Simulation of a Superconductor Fault Current Limiter with finite element method using A-V-H formulation

2020 ◽  
Author(s):  
Gabriel Dos Santos ◽  
Flávio Goulart dos Reis Martins ◽  
Bárbara Maria Oliveira Santos ◽  
Daniel Henrique Nogueira Dias ◽  
Guilherme Gonçalves Sotelo ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Analysis ◽  
Short Circuit ◽  
Normal Operation ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Current Limiter ◽  
H Formulation ◽  
Element Method

Nowadays, the complexity of electrical power systems is increasing. Consequently, the occurrence and the amplitude of the fault current are rising. This fault currents harm the substations’ electrical equipment. Besides, the growth in the fault current level is forcing the change of the circuit breakers to others with a higher interruption capability. A proposal to solve this problem is the fault current limiter (FCL). This equipment has low impedance in the normal operation and high impedance in a short circuit moment. Superconductors are an advantageous choice of material in this case, because of their properties. In order to simulate this equipment, the 2-D Finite Element Method (FEM) has been used. In this paper, a novel FEM simulation analysis of the saturated core Superconductor Fault Current Limiter (SFCL) is proposed using the A-V-H formulation. The current distribution in the superconducting coil is observed. The results are compared to the limited fault current measurements and simulations available in the literature.

scholarly journals Analysis on Double Quench and Instantaneous Power of SFCL Using Two Magnetically Coupled Windings According to Winding Direction

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5533
Author(s):  
Seok-Cheol Ko ◽  
Tae-Hee Han ◽  
Sung-Hun Lim
Keyword(s):  
Short Circuit ◽  
Experimental Results ◽  
Iron Core ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
Instantaneous Power ◽  
Proposed Model ◽  
Current Limiting ◽  
Current Limiter

In this study, the characteristics of the double quench and instantaneous power of a superconducting fault current limiter (SFCL) using two magnetically coupled windings were analyzed. In the proposed model of SFCL, two magnetically coupled windings are wound on the iron core and each winding is connected to one superconducting element. When a fault occurs, the SFCL can limit the fault current by the double quench occurrence of two superconducting elements. In order to analyze the influence of the winding direction on the fault current limiting characteristics of the proposed SFCL, two magnetically coupled windings were designed to allow the same and the reverse directions. From the simulated short circuit experiment, the currents and the voltages of two coupled windings and two superconducting elements were measured and the instantaneous power and the double quench occurrence were analyzed. It was confirmed from the experimental results analysis that the fault current limiting characteristics of the SFCL were more favorable in the reverse winding direction than in the same winding direction.

Performance analysis of an open-core type three-phase saturated iron-core superconducting fault current limiter

2020 ◽  
Vol 21 (2) ◽  
Author(s):  
Anirban Upadhyaya ◽  
Debabrata Roy ◽  
Amalendu Bikash Choudhury
Keyword(s):  
Short Circuit ◽  
Iron Core ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
High Magnitude ◽  
Three Phase ◽  
Current Limiter ◽  
Short Circuit Fault ◽  
Open Core

AbstractA very common kind of fault that appear in an electrical power system is the short-circuit fault, which were traditionally handled by the use of protective devices like fuses or circuit breakers which would disconnect the power supply to protect the components of the network. An alternative to these are fault current limiters (FCL), which are protective devices that limit or suppress the high-magnitude currents created during a short-circuit fault, thereby preventing damage to sensitive equipment and also aid in providing uninterrupted power supply to the consumers. A saturated iron-core superconducting fault current limiter (SISFCL) employs the ferromagnetic property of its core material to automatically suppress high-magnitude currents. In this paper, the performance of an open-core type three-phase SISFCL design is evaluated against three different kinds of short-circuit faults. The analysis is performed using finite element modelling (FEM) in the ANSYS Maxwell software environment.

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