Fault Distance Identification Using Impedance and Matching Approaches on Distribution Network

2017 ◽  
Vol 8 (3) ◽  
pp. 770
Author(s):  
Lilik Jamilatul Awalin ◽  
H. Mokhlis ◽  
M. K. Rahmat ◽  
Sophi Shilpa ◽  
Fadi Albatsh ◽  
...  
Keyword(s):  
Fault Location ◽  
Distribution Network ◽  
Distance Estimation ◽  
Actual Data ◽  
Homogeneous Distribution ◽  
Comparison Result ◽  
Distance Calculation ◽  
Ground Fault ◽  
Three Phase ◽  
Complete Process

In this paper, impedance based method and matching approaches were used separately to detect three phase to ground fault (LLLGF). In order to observe the accuracy of each method, Non-homogeneous distribution network was used as a tested network. Actual data from TNB (Tenaga National Berhad) Malaysia was adopted to model the network by using PSCAD/EMTDC simulation program.  Both methods were tested to observe the accuracy of fault distance estimation. The comparison result shows different accuracy for each section which simulated in the middle of section. Based on the complexity of the distribution network, it possible to contribute difficulty to obtain the maximum accuracy. The result was obtained through the complete process which involves the database formation acquired through the PSCAD/EMTDC software simulator and the fault location distance calculation carried out by the MATLAB software.

scholarly journals Evaluation of earth fault location algorithm in medium voltage distribution network with correction technique

2019 ◽  
Vol 9 (3) ◽  
pp. 1987
Author(s):  
N. S. B. Jamili ◽  
M. R. Adzman ◽  
S. R. A. Rahim ◽  
S. M. Zali ◽  
M. Isa ◽  
...  
Keyword(s):  
Fault Location ◽  
Distribution Network ◽  
Distance Estimation ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Earth Fault ◽  
Ground Fault ◽  
The Earth ◽  
Correction Technique ◽  
Location Algorithm

This paper focused on studying an algorithm of earth fault location in the medium voltage distribution network. In power system network, most of the earth fault occurs is a single line to ground fault. A medium voltage distribution network with resistance earthing at the main substation and an earth fault attached along the distribution network is modeled in ATP Draw. The generated earth fault is simulated, and the voltage and current signal produced is recorded. The earth fault location algorithm is simulated and tested in MATLAB. The accuracy of the earth fault location algorithm is tested at several locations and fault resistances. A possible correction technique is explained to minimize the error. The results show an improvement fault location distance estimation with minimum error.

scholarly journals Reflected Traveling Wave Based Single-Ended Fault Location in Distribution Networks

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3917 ◽  
Author(s):  
Yangang Shi ◽  
Tao Zheng ◽  
Chang Yang
Keyword(s):  
Traveling Wave ◽  
Power Distribution ◽  
Fault Location ◽  
Single Phase ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Distribution Networks ◽  
Reflected Waves ◽  
Ground Fault ◽  
Location Methods

Traveling wave (TW)-based fault-location methods have been used to determine single-phase-to-ground fault distance in power-distribution networks. The previous approaches detected the arrival time of the initial traveling wave via single ended or multi-terminal measurements. Regarding the multi-branch effect, this paper utilized the reflected waves to obtain multiple arriving times through single ended measurement. Potential fault sections were estimated by searching for the possible traveling wave propagation paths in accordance with the structure of the distribution network. This approach used the entire propagation of a traveling wave measured at a single end without any prerequisite of synchronization, which is a must in multi-terminal measurements. The uniqueness of the fault section was guaranteed by several independent single-ended measurements. Traveling waves obtained in a real 10 kV distribution network were used to determine the fault section, and the results demonstrate the significant effectiveness of the proposed method.

scholarly journals Intelligent Fault Diagnosis in a Power Distribution Network

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Oluleke O. Babayomi ◽  
Peter O. Oluseyi
Keyword(s):  
Fault Diagnosis ◽  
Power Distribution ◽  
Fault Location ◽  
Distribution Network ◽  
Power Distribution Network ◽  
Double Line ◽  
Fault Type ◽  
Three Phase ◽  
Novel Method

This paper presents a novel method of fault diagnosis by the use of fuzzy logic and neural network-based techniques for electric power fault detection, classification, and location in a power distribution network. A real network was used as a case study. The ten different types of line faults including single line-to-ground, line-to-line, double line-to-ground, and three-phase faults were investigated. The designed system has 89% accuracy for fault type identification. It also has 93% accuracy for fault location. The results indicate that the proposed technique is effective in detecting, classifying, and locating low impedance faults.

A Novel of Fault Localization Method to Determine Fault Distance for Single Line to Ground Fault in the Distribution Network

2015 ◽  
Vol 785 ◽  
pp. 353-357
Author(s):  
L.J. Awalin ◽  
Hazlie Mokhlis ◽  
A.H.A. Bakar ◽  
Hazlee Azil Illias
Keyword(s):  
Input Data ◽  
Large Scale ◽  
Fault Location ◽  
Distribution Network ◽  
Distribution Networks ◽  
Voltage Sag ◽  
Test Results ◽  
Localization Method ◽  
Ground Fault ◽  
Location Algorithm

In this paper, a novel fault location algorithm in distribution networks based on combination of impedance based method is presented. The voltage sag and current swell from the measurement node are used as input data to estimate the fault distance. To improve the accuracy of the proposed method, the voltage sag and current swell in the un-faulted phase also considered. Test results using a large scale distribution network from Malaysia confirms the accuracy of the proposed method. A comparison is made with the existing method which shows that the proposed method gives more accurate fault distance.

Transient Component-Based Distribution Network Single-Phase Ground Fault Location

2013 ◽  
Vol 448-453 ◽  
pp. 2498-2502
Author(s):  
Zeng Ping Wang ◽  
Jia Liu ◽  
Wei Hua Luo
Keyword(s):  
Fault Location ◽  
Single Phase ◽  
Theoretical Study ◽  
Distribution Network ◽  
Actual System ◽  
Ground Fault ◽  
Method Accuracy ◽  
Fault Information ◽  
Ground Fault Detection ◽  
Localization Criterion

The paper study the single-phase ground Fault Location. Which analysis neutral non-effectively grounded distribution network transient characteristics of single-phase. and verify the HHT method accuracy that through the actual system simulation of single-phase ground fault experiments .It proposed the fault localization criterion which is based on parameter identification. current single-phase ground fault detection and section targeting methods. The paper proposed the implementation which fault information is incomplete. It is help for theoretical study and power engineering..

Sign in / Sign up

Export Citation Format

Share Document