Single-ended fault location for direct distribution overhead feeders based on characteristic distribution of traveling waves along the line

2020 ◽  
Vol 185 ◽  
pp. 106345
Author(s):  
Hongchun Shu ◽  
Danni Duan ◽  
Xincui Tian
Keyword(s):  
Traveling Waves ◽  
Fault Location ◽  
Characteristic Distribution ◽  
Direct Distribution

An improved single-ended correlation-based fault location technique using traveling waves

2021 ◽  
Vol 132 ◽  
pp. 107167
Author(s):  
R.L.A. Reis ◽  
F.V. Lopes ◽  
W.L.A. Neves ◽  
D. Fernandes Jr. ◽  
C.M.S. Ribeiro ◽  
...  
Keyword(s):  
Traveling Waves ◽  
Fault Location

An Approach of Wavefront Identification for Traveling Wave Fault Location Based on Harris Corner Detector

2014 ◽  
Vol 960-961 ◽  
pp. 1100-1103
Author(s):  
Guang Bin Zhang ◽  
Hong Chun Shu ◽  
Ji Lai Yu
Keyword(s):  
Traveling Waves ◽  
Transmission Lines ◽  
Traveling Wave ◽  
Fault Location ◽  
Corner Point ◽  
Harris Corner ◽  
Corner Points ◽  
Simulated Test ◽  
Harris Corner Detector ◽  
Calculated Distance

Wavefront identification is important for traveling based fault location. In order to improve its reliability, a novel wavefront identification method based on Harris corner detector has been proposed in this paper. The principle of single-ended traveling wave fault location was briefly introduced at first, and the features of wavefronts generated by faults on transmission lines were analyzed. The arrival of traveling waves' wavefronts is considered as corner points in digital image of waveshape. The corner points can be extracted precisely by Harris corner detector, and both false corner points and non-fault caused disturbance can be eliminated according to the calculated distance between two neighbour corner points and the angle of the corner point. The proposed method is proved feasible and effective by digital simulated test.

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