Transient Performance Improvement of Power Systems Using Fuzzy Logic Controlled Capacitive-Bridge Type Fault Current Limiter

2020 ◽  
pp. 1-1
Author(s):  
Mohammad Ashraf Hossain Sadi ◽  
Ahmed AbuHussein ◽  
Md Asaduzzaman Shoeb
Keyword(s):  
Fuzzy Logic ◽  
Power Systems ◽  
Performance Improvement ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Transient Performance ◽  
Bridge Type ◽  
Current Limiter

scholarly journals A Multi-Inductor H Bridge Fault Current Limiter

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 795 ◽  
Author(s):  
Amir Heidary ◽  
Hamid Radmanesh ◽  
Ali Moghim ◽  
Kamran Ghorbanyan ◽  
Kumars Rouzbehi ◽  
...  
Keyword(s):  
Power Systems ◽  
Power Transmission ◽  
Fault Current ◽  
Power Electronic ◽  
Fault Current Limiter ◽  
Transmission Grid ◽  
Distributed Power Generation ◽  
Current Limiting ◽  
Bridge Type ◽  
Current Limiter

Current power systems will suffer from increasing pressure as a result of an upsurge in demand and will experience an ever-growing penetration of distributed power generation, which are factors that will contribute to a higher of incidence fault current levels. Fault current limiters (FCLs) are key power electronic devices. They are able to limit the prospective fault current without completely disconnecting in cases in which a fault occurs, for instance, in a power transmission grid. This paper proposes a new type of FCL capable of fault current limiting in two steps. In this way, the FCLs’ power electronic switches experience significantly less stress and their overall performance will significantly increase. The proposed device is essentially a controllable H bridge type fault current limiter (HBFCL) that is comprised of two variable inductances, which operate to reduce current of main switch in the first stage of current limiting. In the next step, the main switch can limit the fault current while it becomes open. Simulation studies are carried out using MATLAB and its prototype setup is built and tested. The comparison of experimental and simulation results indicates that the proposed HBFCL is a promising solution to address protection issues.

scholarly journals A modified bridge-type nonsuperconducting fault current limiter for distribution network application

2021 ◽  
Vol 12 (3) ◽  
pp. 1751
Author(s):  
Willy Stephen Tounsi Fokui ◽  
Michael Saulo ◽  
Livingstone Ngoo
Keyword(s):  
Power Systems ◽  
Distribution Network ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Current Limiting ◽  
Fault Current Limiters ◽  
Bridge Type ◽  
Current Limiter ◽  
Simulation Results ◽  
Electrical Distribution Network

The electrical distribution network is undergoing tremendous modifications with the introduction of distributed generation technologies which have led to an increase in fault current levels in the distribution network. Fault current limiters have been developed as a promising technology to limit fault current levels in power systems. Though, quite a number of fault current limiters have been developed; the most common are the superconducting fault current limiters, solid-state fault current limiters, and saturated core fault current limiters. These fault current limiters present potential fault current limiting solutions in power systems. Nevertheless, they encounter various challenges hindering their deployment and commercialization. This research aimed at designing a bridge-type nonsuperconducting fault current limiter with a novel topology for distribution network applications. The proposed bridge-type nonsuperconducting fault current limiter was designed and simulated using PSCAD/EMTDC. Simulation results showed the effectiveness of the proposed design in fault current limiting, voltage sag compensation during fault conditions, and its ability not to affect the load voltage and current during normal conditions as well as in suppressing the source powers during fault conditions. Simulation results also showed very minimal power loss by the fault current limiter during normal conditions.

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