Analysis of Fault Current Limiting on the Protection Coordination System at Distribution System

2021 ◽  
Author(s):  
Muhammad Afif Willy S ◽  
Langlang Gumilar ◽  
Sujito
Keyword(s):  
Distribution System ◽  
Fault Current ◽  
Current Limiting ◽  
Coordination System

A study on DC hybrid three-phase fault current limiting interrupter for a power distribution system

2005 ◽  
Vol 426-431 ◽  
pp. 1380-1384
Author(s):  
Hongtian Shao ◽  
Tomoyuki Satoh ◽  
Mitsugi Yamaguchi ◽  
Satoshi Fukui ◽  
Jun Ogawa ◽  
...  
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Fault Current ◽  
Power Distribution System ◽  
Three Phase ◽  
Current Limiting

Using Hybrid Type SFCL to Limit the Surge Current Caused by Closing Loop Operation in Distribution System

2014 ◽  
Vol 556-562 ◽  
pp. 1647-1651
Author(s):  
Zhe Li ◽  
Lei Chen ◽  
Wei Yang ◽  
Chang Hong Deng ◽  
Hui Liu
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Fault Current ◽  
Fault Current Limiter ◽  
Superconducting Fault Current Limiter ◽  
Hybrid Type ◽  
Current Limiting ◽  
Typical Distribution ◽  
Current Limiter ◽  
Surge Current

Owing to the scale of power distribution system’s continuously expanding, the closing loop operation is usually needed to meet the demand for the reliability of power supply. However, during the course of this operation, a larger AC surge current with 4~5 times of normal value will be induced, and the surge current can cause the equipped over-current protection take action incorrectly. In this paper, a hybrid type superconducting fault current limiter (SFCL) is suggested to installing into the distribution system, which will take action to inhibit the closing-loop transient surge current by using current-limiting impedance during the transient process. Furthermore, the simulation model of a typical distribution network with the hybrid type SFCL is built through PSCAD/EMTDC software. From the simulation results, it is verified that the suggested hybrid type SFCL can obviously reduce the surge current and improve the power system’s operational stability.

scholarly journals Study on DC Breaker Fault Current and Its Limiting Method of Multiterminal Flexible DC Distribution System

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 859 ◽  
Author(s):  
Jinghan Zhang ◽  
Yuqun Gao ◽  
Fanglei Xiao ◽  
Fang Guo ◽  
Xinwei Li ◽  
...  
Keyword(s):  
Distribution System ◽  
High Reliability ◽  
Short Circuit ◽  
Generation Mechanism ◽  
Fault Current ◽  
Operating Modes ◽  
Dc Distribution ◽  
Study Results ◽  
Current Limiting ◽  
Dc Breaker

The multiterminal flexible DC (MTDC) distribution system has become a hot research topic for its advantages such as new energy load accessibility and high reliability of power supply. However, the fault current during short-circuit faults will be more complicated and serious because of the multiple operating modes and specific converter structure in MTDC distribution system. The high fault current will affect the safety of equipment and system operation. As a result, it is necessary to study the fault current generation mechanism and current limiting method of the DC distribution system. In this paper, the generation mechanism, transient characteristics, and the influencing factors of the fault current in the DC breaker during the short-circuit faults are analyzed by theoretical analysis and simulations separately based on a ±10 kV three-terminal flexible DC distribution system. The current limiting devices are analyzed, and its configuration position and parameter calculation method are proposed. On this basis, the parameters of the current limiting reactor and its effects on each position are analyzed by electromagnetic transient simulations. The current limiting scheme is proposed and its reliability is verified. The study results can provide some reference for overcurrent analysis and current limiting measures of the multiterminal DC distribution system.

scholarly journals Influence Analysis of Current Limiting Reactor on Pole-to-Pole Short Circuit Fault in DC Distribution System

2021 ◽  
Vol 256 ◽  
pp. 01032
Author(s):  
Zhenyu Wang ◽  
Shouxiang Wang ◽  
Qi Liu ◽  
Chunyu Zhang ◽  
Qianyu Zhao ◽  
...  
Keyword(s):  
Distribution System ◽  
Short Circuit ◽  
Fault Current ◽  
Capacitor Discharge ◽  
Fault Type ◽  
Dc Distribution ◽  
Current Limiting ◽  
Fault Mechanism ◽  
Short Circuit Fault ◽  
A Current

With the development of power electronic technology, flexible DC distribution system has gradually become a research hotspot. Pole-to-pole short circuit fault is the most serious fault type in DC distribution system. When pole-to-pole short circuit fault occurs in DC side, it will produce a large fault current, which will cause serious harm to DC distribution system. Therefore, it is urgent to install current limiting reactor to limit fault over-current. Aiming at the DC distribution system based on half bridge MMC, this paper analyses the fault mechanism and fault characteristics of pole-to-pole short circuit fault, studies the current limiting effect of the installation position and capacity of current limiting reactor on fault current, and carries out simulation verification in PSCAD / EMTDC platform. The analysis and simulation results show that installing a current limiting reactor at the outlet of the DC side can reduce the peak value of capacitor discharge current, and installing a current limiting reactor at the outlet of the AC side can reduce the overall amplitude of fault current.

scholarly journals Study on Fault Current Characteristics and Current Limiting Method of Plug-In Devices in VSC-DC Distribution System

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3159 ◽  
Author(s):  
Gao ◽  
Han ◽  
Zhang ◽  
Xiao ◽  
Zhao ◽  
...  
Keyword(s):  
Theoretical Calculation ◽  
Distribution System ◽  
Computer Aided Design ◽  
Voltage Source ◽  
Stable Operation ◽  
Fault Current ◽  
Calculation Methods ◽  
Dc Distribution ◽  
Current Limiting ◽  
Current Characteristics

The DC (Direct Current) distribution system based on the voltage source converter (VSC-DC) has become a research hotspot due to its various advantages. There are many plug-in devices in the VSC-DC distribution system, which may be damaged by the fault current. Therefore, studying the fault current characteristics and current limiting method is one of the key methods to ensure the safe and stable operation of the VSC-DC distribution system. Based on theoretical analysis and simulation calculations, this paper studies the causes, influencing factors, and current limiting methods of the fault current when the pole-to-pole fault occurs at the line side of plug-in devices in a ±10 kV VSC-DC distribution system. Firstly, based on the system topology, the decisive fault condition of fault current and the design principle of current limiting reactor value are analyzed. Secondly, the theoretical calculation methods of fault current and current limiting reactor value which satisfies the breaking capacity of DC circuit breaker are proposed. Finally, the accuracy of theoretical calculation methods is verified by simulation in PSCAD/EMTDC (Power Systems Computer Aided Design/ Electromagnetic Transients including DC). The research results could provide the theoretical calculation methods of the fault current and the current limiting reactor value of plug-in devices in the ±10 kV VSC-DC distribution system.

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