scholarly journals Short Circuit Current Calculation Method and FCL Location Selection Method of Large-Scale Power System incorporating Superconducting Fault Current Limiters

1999 ◽  
Vol 119 (11) ◽  
pp. 1157-1165
Author(s):  
Nagata Masaki ◽  
Kazuyuki Tanaka
Keyword(s):  
Power System ◽  
Calculation Method ◽  
Large Scale ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Selection Method ◽  
Fault Current ◽  
Location Selection ◽  
Fault Current Limiters ◽  
Current Calculation

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.

scholarly journals A Novel Overcurrent Suppression Strategy during Reclosing Process of MMC-HVDC

2019 ◽  
Vol 9 (9) ◽  
pp. 1737 ◽  
Author(s):  
Bin Jiang ◽  
Yanfeng Gong
Keyword(s):  
Transmission Lines ◽  
Short Circuit ◽  
Current Method ◽  
Short Circuit Current ◽  
Simulation Software ◽  
Fault Current ◽  
Overhead Lines ◽  
Hvdc System ◽  
Electromagnetic Transient Simulation ◽  
Current Calculation

A modular multilevel converter based high-voltage DC (MMC-HVDC) system has been the most promising topology for HVDC. A reclosing scheme is usually configured because temporary faults often occur on transmission lines especially when overhead lines are used, which often brings about an overcurrent problem. In this paper, a new fault current limiter (FCL) based on reclosing current limiting resistance (RCLR) is proposed to solve the overcurrent problem during the reclosing process. Firstly, a mesh current method (MCM) based short-circuit current calculation method is newly proposed to solve the fault current calculation of a loop MMC-HVDC grid. Then the method to calculate the RCLR is proposed based on the arm current to limit the arm currents to a specified value during the reclosing process. Finally, a three-terminal loop MMC-HVDC test grid is constructed in the widely used electromagnetic transient simulation software PSCAD/EMTDC and the simulations prove the effectiveness of the proposed strategy.

On Short-Circuit Current Calculations Including Superconducting Fault Current Limiters (ScFCLs)

2018 ◽  
Vol 33 (5) ◽  
pp. 2513-2523 ◽  
Author(s):  
Luis Miguel Castro ◽  
Daniel Guillen ◽  
Frederic Trillaud
Keyword(s):  
Short Circuit ◽  
Short Circuit Current ◽  
Fault Current ◽  
Fault Current Limiters

GPU-Accelerated Batch Solution for Short-Circuit Current Calculation of Large-scale Power Systems

2019 ◽  
Author(s):  
Boyang Shang ◽  
Yin Xu ◽  
Chengeng Zhang ◽  
Ying Chen ◽  
Zhengyuan Liu ◽  
...  
Keyword(s):  
Power Systems ◽  
Large Scale ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Current Calculation

The Building of Offshore Facilities Power System’s Equivalent Circuit Model

2011 ◽  
Vol 219-220 ◽  
pp. 648-651
Author(s):  
Hong Zhang ◽  
Xu Hui Ma ◽  
Xiu Ye Yin
Keyword(s):  
Power System ◽  
Equivalent Circuit ◽  
System Development ◽  
Short Circuit ◽  
Recursive Algorithm ◽  
Equivalent Circuit Model ◽  
Short Circuit Current ◽  
Circuit Model ◽  
Calculation Process ◽  
Current Calculation

With the development of technology, the power system of offshore facilities (for short: power system) is increasingly complex, short-circuit current calculation process also becomes more complex. The simple recursive algorithm can not meet the requirements of short-circuit current calculation in complex power system. The paper, basing on the principle of short-circuit current calculation, taking modeling ideas, created an equivalent circuit model of power system for short-circuit current calculation. The equivalent circuit model can be used to simplify the progress of calculation and meet the needs of the power system development.

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