Numerical algorithm for overhead lines arcing faults detection and distance and directional protection

Radojevic, Z.M.; Terzija, Vladimir; Djuric, Natasa

doi:10.1109/61.847225

Cited by 54 publications

(16 citation statements)

References 6 publications

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“…On the basis of these considerations, the imaginary part is not negligible in comparison to the real part (contrary to the assumption used in the previously published algorithms, for example, in [1]- [3], [5]). …”

Section: Apparent Impedance For the Return Paths Of Ground-faultmentioning

confidence: 58%

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A digital fault-location algorithm taking into account the imaginary part of the grounding impedance at the fault place

Popovic¹

2003

IEEE Trans. Power Delivery

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The paper presents a new digital fault location algorithm developed for the determination of the location of the transmission line faults. The calculations for the estimation of the fault location are performed using one-terminal voltage and current data of the transmission line. The development of the algorithm is based on the detailed consideration of all the return paths (ground wire, towers, and substation grounding electrodes) of the ground fault current to its sources (the power system). The algorithm takes into account all of the factors important for the accuracy of the estimation (i.e., fault impedance, fault current component supplied from the opposite end of the line, and the prefault current). Also, the imaginary part of the fault impedance is not ignored as is the case with the previously published methods. The proposed algorithm was tested using simulated current data. Sample test results are also included.

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Section: Apparent Impedance For the Return Paths Of Ground-faultmentioning

confidence: 58%

“…The effects of numerous line and system parameters considered in Part III, including the arc resistance [5], are expressed only through , , and .…”

Section: Algorithm Derivationmentioning

confidence: 99%

A digital fault-location algorithm taking into account the imaginary part of the grounding impedance at the fault place

Popovic¹

2003

IEEE Trans. Power Delivery

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“…In the early 1970s, several algorithms and techniques were developed for the detection of this kind of faults, including the staged fault test [2], low-frequency spectrum [3], Kalman filtering [4], neural networks [5], neuro fuzzy technique [6], harmonic analysis [7], and wavelet transform [8][9][10]. In addition, such techniques as numerical algorithms [11,12], wavelets [13], neural networks [14,15], and, recently, time-domain studies [16] have been proposed for HIF localization. However, a complete solution to the problem of HIF detection and localization can only be obtained by a deep understanding of the interaction phenomenon between the HIF and the power transmission line.…”

Section: Torres Et Almentioning

confidence: 99%

Distributed Parameters Model for High-impedance Fault Detection and Localization in Transmission Lines

Torres

Maximov

Ruiz

et al. 2013

Electric Power Components and Systems

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A high-impedance fault is generated when an overhead power line physically breaks and falls to the ground. Such faults are difficult to detect and locate in electric power systems because of the small currents and voltage drops involved, which cannot be detected by conventional protection. Furthermore, arcing accompanies highimpedance faults, resulting in fire hazard, damage to electrical equipment, and risk to human life. This article presents an analytical description of the interaction between the electric arc associated with high-impedance faults and a transmission line. A joint analytical solution to the wave equation for a transmission line and a non-linear equation of the arc model is found for the case of an arbitrary reflection coefficient at the substation end, and a methodology for high-impedance fault detection and localization is proposed. The developed model is validated by means of a comparison with measurements. The comparison demonstrates the accuracy and effectiveness of the proposed model.

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“…In addition, DC railway lines are almost 1000m length or longer, precise location is demanded in the dim underground environment. Signal injecting method use a special signal injected at the bus bar and the fault can be located by detectors [2,4,5,6]. However this method is mostly power frequency line through the existing technology.…”

Section: Introductionmentioning

confidence: 99%

High-resistance grounding fault detection and location in DC railway system

Dong

Wang

et al. 2012

11th IET International Conference on Developments in Power Systems Protection (DPSP 2012)

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Locating high-resistance grounding faults poses a tough and challenging problem for the safety of DC railway systems. High-resistance grounding fault current isn t sufficient to trigger switches, which may expand the accident or turn into potential hazards. In order to overcome the limits of the existing methods (such as signal injecting method, resistance method and so), developing a novel fault approach by using both the feeding current and voltage to detect and locate the high-resistance grounding fault in DC railway traction system is necessary. The simulation results prove that the exact fault location can be accurately predicted in this way. Through comparison of several different analysis methods, this paper concludes that with the digital signal processing the location can be executed more precisely. Extensive simulations with diverse fault conditions are performed to verify the means.

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Numerical algorithm for overhead lines arcing faults detection and distance and directional protection

Cited by 54 publications

References 6 publications

A digital fault-location algorithm taking into account the imaginary part of the grounding impedance at the fault place

A digital fault-location algorithm taking into account the imaginary part of the grounding impedance at the fault place

Distributed Parameters Model for High-impedance Fault Detection and Localization in Transmission Lines

High-resistance grounding fault detection and location in DC railway system

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