An Online Travelling Wave Fault Location Method for Unearthed-Operated High-Voltage Overhead Line Grids

In this paper, a single-ended travelling wave-based fault location algorithm is presented with reference to HV (i.e., 60 kV) overhead unearthed operated lines. The main novelty of this contribution lies in the method of calculating the speed of the earth mode component of the travelling wave, which...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power delivery 2018-12, Vol.33 (6), p.2776-2785
Main Authors: Benato, Roberto, Sessa, Sebastian Dambone, Poli, Michele, Quaciari, Cristiano, Rinzo, Giovanni
Format: Article
Language:English
Subjects:
Algorithms
Circuit faults
Continuous wavelet transform
Continuous wavelet transforms
Fault location
High voltages
Impedance
phase to modal transform
Repair & maintenance
Sensitivity analysis
Transmission line measurements
Traveling waves
travelling wave
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a single-ended travelling wave-based fault location algorithm is presented with reference to HV (i.e., 60 kV) overhead unearthed operated lines. The main novelty of this contribution lies in the method of calculating the speed of the earth mode component of the travelling wave, which exploits the earth mode impedance and capacitance, and of simplifying the fault location procedure. The developed procedure has been applied to a real double-circuit overhead line modeled by EMTP-rv, whereas the fault location algorithm has been implemented in a MATLAB environment. In order to validate the proposed method, a sensitivity analysis has been performed by varying the fault position, the fault resistance and the fault inception angle. The proposed approach has proven to be independent of all these parameters.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2018.2816067