A New Approach Traveling-Wave Distance Protection—Part I: Algorithm

Vázquez, E.; Castruita, J.; Chacon, O.L.; Enrı́quez, Arturo Conde

doi:10.1109/tpwrd.2007.893376

Cited by 62 publications

(17 citation statements)

References 8 publications

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“…However there may be large unbalanced current along transmission line which could cause wrong operation [6, 7]. TW distance protection principle has no direction discrimination ability and cannot protect the whole transmission line [8, 9]. TW amplitude comparison directional protection principle compares forward TW and inverse TW to identify fault direction.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Wang

Gao

Zou

et al. 2017

IET Generation, Transmission & Distribution

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Section: Introductionmentioning

confidence: 99%

Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Wang

Gao

Zou

et al. 2017

IET Generation, Transmission & Distribution

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“…However, for the recognition of internal faults, the major interference is a lightning surge. As the traveling surges caused by lightning strikes change quite similarly with those produced by short faults, these rules cannot distinguish faults from lightning interference effectively [8][9][10][11][12]. Therefore, an additional function, or fault recognition unit, should be adopted to recognize interference surges from fault ones.…”

Section: Introductionmentioning

confidence: 99%

Recognition of Traveling Surges in HVDC with Wavelet Entropy

Luo

Lin

Zhou

et al. 2017

Entropy

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Abstract:Traveling surges are commonly adopted in protection devices of high-voltage direct current (HVDC) transmission systems. Lightning strikes also can produce large-amplitude traveling surges which lead to the malfunction of relays. To ensure the reliable operation of protection devices, recognition of traveling surges must be considered. Wavelet entropy, which can reveal time-frequency distribution features, is a potential tool for traveling surge recognition. In this paper, the effectiveness of wavelet entropy in characterizing traveling surges is demonstrated by comparing its representations of different kinds of surges and discussing its stability with the effects of propagation distance and fault resistance. A wavelet entropy-based recognition method is proposed and tested by simulated traveling surges. The results show wavelet entropy can discriminate fault traveling surges with a good recognition rate.

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“…These algorithms may be broadly classified as (i) those extracting fundamental frequency current and voltage phasors to compute fault location [2] (ii) those using differential equations of transmission line and estimating line parameters [3] (iii) those based on traveling wave (TW) theory [5][6][7][8][9][10][11][12][13]. Artificial intelligence techniques such as neural network also find applications in locating a fault on transmission line [4].…”

Section: Introductionmentioning

confidence: 99%

“…[8] considered only high impedance LG fault for fault location method proposed. The algorithm was proposed in [9] for traveling-wave distance protection for transmission lines, based on pattern recognition of the first wave front due to fault that arrives at the relay location using principal component analysis. Single ended TW method that used cross-correlation of the incident and reflected waves to estimate fault location was proposed in [11][12].…”

Section: Introductionmentioning

confidence: 99%

Fault Location Estimation Based on Wavelet Analysis of Traveling Waves

Kale

Bhide

Bedekar

2012

2012 Asia-Pacific Power and Energy Engineering Conference

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Improved fault location techniques are important particularly in EHV transmission lines and those subject to relatively high incidence of contingency faults over difficult terrain. Traveling wave based single end data techniques generally assume near total reflections at the fault point as well as line terminals. However, in practice effective impedances at the fault point and line terminals may not be significantly lesser than the line surge impedance. With this in view, a new traveling wave based algorithm, which does not assume near total reflections at discontinuities, and therefore more accurate over the wide range of variable parameters, is presented in this paper. Discrete wavelet transform was used to analyze the fault induced traveling waves. MATLAB/Simulink software was used to test and validate the proposed fault location approach. Various fault conditions were simulated by varying fault type, fault resistance, fault location and fault inception time, on a given power system model. The results showed that the proposed method for fault location was able to locate the faults on the transmission line rapidly and correctly.

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A New Approach Traveling-Wave Distance Protection—Part I: Algorithm

Cited by 62 publications

References 8 publications

Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Ultra‐high‐speed travelling wave directional protection based on electronic transformers

Recognition of Traveling Surges in HVDC with Wavelet Entropy

Fault Location Estimation Based on Wavelet Analysis of Traveling Waves

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