Semiconductor fault-current limiters. Part 3: Investigations on microprocessor-based thyristor fault-current limiter for use in power systems

1984 ◽  
Vol 131 (3) ◽  
pp. 103 ◽  
Author(s):  
S. Palanichamy ◽  
P. Chinnasamy
Keyword(s):  
Power Systems ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Fault Current Limiters ◽  
Current Limiter

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.

scholarly journals Design and computational modeling of fault current limiter topologies

2020 ◽  
Author(s):  
Alexandre Bitencourt ◽  
Daniel H. N. Dias ◽  
Bruno W. França ◽  
Felipe Sass ◽  
Guilherme G. Sotelo
Keyword(s):  
Electric Power ◽  
Distributed Generation ◽  
Distribution System ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Economic Feasibility ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Fault Current Limiters ◽  
Current Limiter

The increase in demand for electric power and the insertion of a distributed generation led to the rise of the short-circuit current in substations. Most of these Brazilian substations were designed decades ago, because of that their equipment may not support the new short-circuit current levels. To protect the installed equipment and avoid excessive costs replacing old devices, it is possible to install Fault Current Limiters (FCLs). This document is a report from an R&D project that evaluated FCL topologies considering real parameters in simulation from used equipment, concluding that the selected FCL topologies accomplished their technical objective. However, before implementing these topologies in the distribution system, one should consider the technical and economic feasibility of using semiconductor switching devices.

Fault Current Limiter Based on Series Voltage Source Inverter

2013 ◽  
Vol 705 ◽  
pp. 378-385 ◽  
Author(s):  
Hua Li ◽  
Dong Ming Han ◽  
Ling Quan Zeng
Keyword(s):  
Power Systems ◽  
Reactive Power ◽  
Voltage Source ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Voltage Source Inverter ◽  
Operating Characteristics ◽  
Voltage Level ◽  
New Type ◽  
Current Limiter

The installation of Fault Current Limiter (FCL) brings many advantages to power systems. Therefore, in recent years, many kinds of FCL have been developed. This paper describes a new type of FCL, it’s composed by a tandem resistance and a self rectified voltage source inverter, connected to the distribution line by a coupling transformer. It realizes the limiting by controlling the reactive power. Its prominent features are: simple configuration, lower voltage level. This paper aims to evaluate the operating characteristics of such FCL in both simulation and experimental research ways.

scholarly journals Analysis of Superconducting Fault Current Limiter in DC System with Renewable Energy Sources

2017 ◽  
Vol 6 (1) ◽  
pp. 64
Author(s):  
S. Sanjeeva Rayudu ◽  
C. Ganesh ◽  
B.Vignesh Naik
Keyword(s):  
Renewable Energy ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
Fault Current Limiters ◽  
Flow Through ◽  
Current Limiter

<p>Superconducting fault-current limiters (SFCLs) have been the subject of research and development for many years and offer an attractive solution to the problem of rising fault levels in electrical distribution systems.  SFCLs can greatly reduce fault currents and the damage at the point of fault, and help improve the stability of a power system. Superconducting fault-current limiters (SFCL) provide a  new efficient approach to the reliable handling of such  faults.(SCFLs) can be used for various nominal voltages and currents, and can  be  adapted  to  particular  limiting  characteristics  in  case  of  short  circuits. In this project, dc resistive type superconducting fault current limiter (SFCL) is presented. This SFCL is designed for the HVDC system.  Uniform current and voltage sharing among the SFCL modules can be observed through contact resistance tests, dc flow-through tests, and ac flow-through tests. Results of tests show that each limiting module has good uniformity in higher current system. The proposed concept can be implemented using renewable energy sources. The results are presented by using Matlab/simulink platform.</p>

scholarly journals Application of Superconducting Fault Current Limiter (SFCL) in Power Systems: A Review

2018 ◽  
Vol 3 (7) ◽  
pp. 28 ◽  
Author(s):  
Ignatius K. Okakwu ◽  
P. E. Orukpe ◽  
E. A. Ogujor
Keyword(s):  
Power Systems ◽  
System Stability ◽  
Normal Operation ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Operational Flexibility ◽  
Superconducting Fault Current Limiter ◽  
Protective Devices ◽  
High Impedance ◽  
Current Limiter

The fault current levels of an interconnected power network have witnessed a general rise due to increase in power demand. This rise in fault current if not properly mitigated may exceed the maximum ratings of the switchgear. Many conventional protective devices such as series reactors, fuses, high impedance transformers, etc. have high cost, increased power loss and loss of power system stability, which may ultimately cause lower reliability and reduced operational flexibility. Superconducting Fault Current Limiter (SFCL) is a flexible alternative to the use of conventional protective devices, due to its effective ways of reducing fault current within the first cycle of fault current, reduced weight and zero impedance during normal operation. This paper reviews various concepts of SFCLs and its applications in power systems.

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