scholarly journals A Compound Current Limiter and Circuit Breaker

Electronics ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 551 ◽  
Author(s):  
Amir Heidary ◽  
Hamid Radmanesh ◽  
Ali Bakhshi ◽  
Kumars Rouzbehi ◽  
Edris Pouresmaeil
Keyword(s):  
Voltage Drop ◽  
Circuit Breaker ◽  
Experimental Results ◽  
Fault Current ◽  
Fault Current Limiter ◽  
System A ◽  
Ability To Act ◽  
Compound Type ◽  
In Series ◽  
Current Limiter

The protection of sensitive loads against voltage drop is a concern for the power system. A fast fault current limiter and circuit breaker can be a solution for rapid voltage recovery of sensitive loads. This paper proposes a compound type of current limiter and circuit breaker (CLCB) which can limit fault current and fast break to adjust voltage sags at the protected buses. In addition, it can act as a circuit breaker to open the faulty line. The proposed CLCB is based on a series L-C resonance, which contains a resonant transformer and a series capacitor bank. Moreover, the CLCB includes two anti-parallel power electronic switches (a diode and an IGBT) connected in series with bus couplers. In order to perform an analysis of CLCB performance, the proposed structure was simulated using MATLAB. In addition, an experimental prototype was built, tested, and the experimental results were reported. Comparisons show that experimental results were in fair agreement with the simulation results and confirm CLCB’s ability to act as a fault current limiter and a circuit breaker.

scholarly journals Application of Superconducting Fault Current Limiter in Power Grid - Survey

2020 ◽  
Vol 6 (1) ◽  
pp. 1-4
Author(s):  
Vipul Sharma ◽  
Mrs. Madhu Upadhyay
Keyword(s):  
Short Circuit ◽  
Circuit Breaker ◽  
Energy Sources ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Distributed Energy ◽  
Superconducting Fault Current Limiter ◽  
Electric Equipment ◽  
Generation Capacity ◽  
Current Limiter

Introduction of Distributed Energy Sources (DES) is the highest change happening to the distribution network. This paper describes different types of current limiting methods which reduce the magnitude of the fault current. The interconnected distributed energy sources to the conventional grid improves the power generation capacity of the power system but also increases the magnitude of fault current which cannot tolerate by the short-circuit ratings of the circuit breaker, relays, isolator etc. This paper reviews on the innovative electric equipment i.e. Superconducting Fault Current Limiter (SFCL), which reduces fault current magnitude in first cycle of fault current. Keywords: Distributed Energy Sources, Fault current, Superconducting Fault Current Limiter (SFCL), Protection Equipment.

scholarly journals Analysis of the DC Fault Current Limiting Characteristics of a DC Superconducting Fault Current Limiter Using a Transformer

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4210
Author(s):  
Kang-Cheol Cho ◽  
Min-Ki Park ◽  
Sung-Hun Lim
Keyword(s):  
Circuit Breaker ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Long Distance ◽  
Superconducting Fault Current Limiter ◽  
Dc System ◽  
Dc Fault ◽  
Current Limiting ◽  
New Type ◽  
Current Limiter

Recently, a lot of interesting research has been conducted to solve the fault current problem of the DC system. In long-distance transmission, DC transmission is more economical than AC transmission. The connection of power grids with a DC system can also better control the power flow and provide high stability. However, the control of the fault current in a DC system is more difficult to handle than in an AC system because the DC system does not make a zero point, unlike the AC system. In addition, there is a disadvantage, in that an arc occurs when a circuit breaker operates. In this paper, a new type of DC superconducting fault current limiter (SFCL) is proposed. This new type of SFCL is composed of two superconducting elements, a current limiting resistor/reactor (CLR), and a transformer. With the proposed SFCL, the DC fault current limiting experiments were performed and the DC fault current limiting characteristics of this SFCL due to the component of the CLR were analyzed.

scholarly journals SF6 passive resonance DC circuit breaker combined with a superconducting fault current limiter

2020 ◽  
Vol 14 (14) ◽  
pp. 2869-2878
Author(s):  
Bin Xiang ◽  
Nuo Cheng ◽  
Kun Yang ◽  
Zhiyuan Liu ◽  
Yingsan Geng ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
Dc Circuit Breaker ◽  
Current Limiter
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