Fault Location Estimation Based on Wavelet Analysis of Traveling Waves

Kale, Vijay; Bhide, Sudhir R.; Bedekar, Prashant P.

doi:10.1109/appeec.2012.6307627

Cited by 15 publications

(6 citation statements)

References 11 publications

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“…In this case, the information about the first and second peaks is as follows: Since the signs of the two peaks are identical, the fault distance can be calculated as shown in (15), according to (2). The propagation speed is assumed to be the speed of light, 3.0x10 5 km/s.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…H. W. Dommel and J. M. Michels were the first to present high-speed relaying using traveling wave transient analysis in 1978 [1][2][3][4][5][6][7][8][9][10][11]. Until now, many researchers are studying the traveling wave based fault location algorithm by using various scheme such as wavelet transform, frequency analysis and so on [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Algorithm for Fault Location Estimation on Transmission Lines using Second-order Difference of a Positive Sequence Current Phasor

Yeo¹,

Jang²,

Kim³

2013

Journal of Electrical Engineering and Technology

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-The accurate estimation of a fault location is desired in distance protection schemes for transmission lines in order to selectively deactivate a faulted line. However, a typical method to estimate a fault location by calculating impedances with voltages and currents at relaying points may have errors due to various factors such as the mutual impedances of lines, fault impedances, or effects of parallel circuits. The proposed algorithm in this paper begins by extracting the fundamental phasor of the positive sequence currents from the three phase currents. The second-order difference of the phasor is then calculated based on the fundamental phasor of positive sequence currents. The traveling times of the waves generated by a fault are derived from the second-order difference of the phasor. Finally, the distance from the relaying point to the fault is estimated using the traveling times. To analyze the performance of the algorithm, a power system with EHV(Extra High Voltage) untransposed double-circuit transmission lines is modeled and simulated under various fault conditions, such as several fault types, fault locations, and fault inception angles. The results of the simulations show that the proposed algorithm has the capability to estimate the fault locations with high speed and accuracy.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Algorithm for Fault Location Estimation on Transmission Lines using Second-order Difference of a Positive Sequence Current Phasor

Yeo¹,

Jang²,

Kim³

2013

Journal of Electrical Engineering and Technology

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show abstract

“…These algorithms may be broadly classified as two categories. One is the algorithm based on impedance; the other one is based on travelling wave [5,6]. Algorithm based on impedance uses current and voltage sampling data to measure post-fault impedance.…”

Section: Algorithms For Fault Locationmentioning

confidence: 99%

Research into Fault Location Methods for DC Railway Traction System

Song

Yip

et al. 2014

12th IET International Conference on Developments in Power System Protection (DPSP 2014)

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There are two common methods applied in the traction line fault location, the travelling wave method and the impedance method. Each method has advantages and disadvantages. It is difficult to achieve optimized goal with only one method. Therefore, this paper combines the two algorithms to improve the accuracy of fault location. MATLAB/Simulink software was used to test and validate the proposed fault location approach. Various fault conditions were simulated by varying fault location, using different fault location methods, on a given subway traction power supply system model. After synthetically analysis the enhanced accuracy simulation results are deduced, and the integrated simulation results have been proved to be highly accurate. The combining algorithm in the fault location has promising future in the practical application.

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“…However, for the proposed method synchronized digital recording is necessary for both ends. Study [6] is an application of wavelet modulus maxima for discrimination of faulted line section, in which wavelet modulus maxima of modal signal was used. Another wavelet multiresolution-based analysis is given in [7] for determination of point of strike of a lightning on a transmission line.…”

Section: Introductionmentioning

confidence: 99%

Single end travelling wave fault location on transmission systems using wavelet analysis

Altay

Gursoy²,

Kalenderli

2014

2014 ICHVE International Conference on High Voltage Engineering and Application

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Power system performance is affected by transient phenomena such as different faults on power cables and transmission lines. Detection/location of the faults has great importance in order to be able to clear the fault as soon as possible and provide more reliable service to power customers. When a fault location scheme is utilized for this purpose, which uses the velocity of the propagation as a parameter during analysis, changing parameters of the transmission medium introduces large errors in determination of fault locations. The reason for the introduced error is that the travelling distance is calculated by using the travelling time and the velocity of the propagation. However, in order to have accurate fault localization, the successful analysis should not use the velocity of propagation in computer based relaying. Another important thing is that single end measurement has advantages over double end measurements. In this context, a new scheme has been developed which describes the use of wavelet analysis for identification and location of line faults without using the velocity of propagation and utilizing only one end recording. Extensive simulation work has been performed in order to confirm the effectiveness of the proposed scheme based on wavelet analysis. The obtained results indicate that the proposed scheme is effective and able to locate the points of faults with reasonable accuracy. This scheme can also be further used for the travelling wave protection on power cables for the fast and accurate fault clearance.I.

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Fault Location Estimation Based on Wavelet Analysis of Traveling Waves

Cited by 15 publications

References 11 publications

Algorithm for Fault Location Estimation on Transmission Lines using Second-order Difference of a Positive Sequence Current Phasor

Algorithm for Fault Location Estimation on Transmission Lines using Second-order Difference of a Positive Sequence Current Phasor

Research into Fault Location Methods for DC Railway Traction System

Single end travelling wave fault location on transmission systems using wavelet analysis

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