Accurate Single-ended Data based Fault Location Method for Multi-Source and Multi-branch Distribution Network

2014 ◽  
Author(s):  
Xiangning Lin ◽  
Jinwen Sun ◽  
Zhongkang Wei ◽  
Zhiqian Bo ◽  
Zhengtian Li ◽  
...  
Keyword(s):  
Fault Location ◽  
Distribution Network ◽  
Location Method ◽  
Branch Distribution

scholarly journals Single-ended data based fault location method for multi-branch distribution network

2020 ◽  
Vol 6 ◽  
pp. 385-390 ◽  
Author(s):  
Zixuan Wang ◽  
Xiao Ma ◽  
Yi Lu ◽  
Chaoliang Wang ◽  
Xiangning Lin ◽  
...  
Keyword(s):  
Fault Location ◽  
Distribution Network ◽  
Location Method ◽  
Branch Distribution

A Fault Location Method in Distribution Network Based on Firefly Algorithm

2014 ◽  
Vol 971-973 ◽  
pp. 1463-1466
Author(s):  
Qian Wang ◽  
Wei Huang
Keyword(s):  
Mathematical Model ◽  
Firefly Algorithm ◽  
Fault Location ◽  
Short Circuit ◽  
Distribution Network ◽  
Convergence Criterion ◽  
Information Distortion ◽  
Location Method ◽  
Network Fault ◽  
The Impact

In the distribution network fault location, the impact of information distortion needs to be to focus on, especially when the short-circuit current is used as the fault information. Considering the distortion or failure of real-time information and other issues, the quick location method of the failure point in distribution network is analyzed. Based on the mathematical model of distribution network fault location, firefly algorithm is applied. According to the characteristics of fault location objective function in distribution network, convergence criterion is proposed, which is suitable for fault location mathematical model.

Study of Earth-Fault Location Method for Distribution Network Based on Transient Signal

2011 ◽  
Vol 105-107 ◽  
pp. 742-746
Author(s):  
Zhi Chao Huang ◽  
Yi Zhong ◽  
Cai Lin Li ◽  
Mu Liu ◽  
Sheng Zhen Yang
Keyword(s):  
Frequency Band ◽  
Fault Location ◽  
Characteristic Impedance ◽  
Distribution Network ◽  
Transient Current ◽  
Transient Signal ◽  
Location Method ◽  
Earth Fault ◽  
Current Energy ◽  
Feature Frequency

According to the generating process and propagation characteristics of earth-fault transient signal, an earth-fault location method for distribution network based on transient signal is presented. In the method, in order to change line characteristic impedance, a resonant filter circuit is paralleled in line segment border, so that it could cause transient current energy differences in feature frequency band on both sides of detection device. The location method achieves earth-fault area location through comparing transient current energy and energy attenuation coefficient in feature frequency band. The simulation test result shows that the method isn't influenced by distribution system grounded style, operation style and other factors and which could detect the earth-fault area rapidly and reliably in distribution network and has a high project application value.

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