Study on Section Location of Medium Voltage Distribution Network Based on Fifth Harmonic Current Fault Component

Gao, Shuping; Lin, Zihao

doi:10.1109/iaeac.2018.8577724

Cited by 5 publications

(5 citation statements)

References 1 publication

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“…In Figure 6, the nodes through paths X, Y and Z are (1-4, 4, 9, 10), (6)(7)(8)(9)(10) and (11,(16)(17)(18)(19)(20)15), respectively. Node 11 through path Z is taken as an example to compare the value of H (Z, X) and H mod (Z, X).…”

Section: Principle Of Improved Hausdorff Distance Algorithmmentioning

confidence: 99%

“…Methods using steady-state fault quantities [3][4][5][6] include comparison of the amplitude and phase of the zero-sequence current of each feeder method, zero-sequence reactive power Compared with the above methods, the methods of using transient fault characteristics [7][8][9][10][11][12] are not affected by the Petersen coil, and can locate the faulty section quickly and accurately. Aiming at the successful case of traveling wave ranging method used in transmission line in [7], this method is applied to the distribution line with longer lines and fewer branches in [8], however, considering the presence of cable-overhead hybrid, short distribution network lines and many branches, it is difficult to locate fault section.…”

Section: Introductionmentioning

confidence: 99%

“…Methods using steady-state fault quantities [3][4][5][6] include comparison of the amplitude and phase of the zero-sequence current of each feeder method, zero-sequence reactive power direction method and fifth harmonic component method, which are susceptible to the influence of noise and Petersen coil and result in the failure of fault location.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An improved Hausdorff distance method for locating single phase to ground fault in neutral non‐effectively grounded system

Zhang

et al. 2021

IET Generation Trans & Dist

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Neutral non-effectively grounded mode is widely used in medium-voltage distribution networks in China. When a single-phase grounding fault occurs in distribution networks, abundant transient signals will be generated. Here, a fault location method based on improved Hausdorff distance is proposed with transient zero-sequence current and transient zero-sequence voltage of bus. First, according to the impedance characteristic analysis of the zero-sequence network, the selected frequency band (SFB) is determined, and the transient signals in the SFB are extracted by the digital filter. Second, the projection components of transient zero-sequence currents at each monitoring point of faulty feeder are obtained by the principle of orthogonalization. Finally, the projection component values of each section are calculated by the improved Hausdorff distance, and the maximum value is selected. If the maximum value is much larger than the sum of the values of other sections excluding the maximum value, the section where the maximum value is located is judged as a faulty section, otherwise, the downstream section of the last monitoring point is determined as the faulty section. Matlab/Simulink simulation shows that the proposed method can locate accurately under different fault conditions.

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Section: Principle Of Improved Hausdorff Distance Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Methods using steady-state fault quantities [3][4][5][6] include comparison of the amplitude and phase of the zero-sequence current of each feeder method, zero-sequence reactive power direction method and fifth harmonic component method, which are susceptible to the influence of noise and Petersen coil and result in the failure of fault location.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An improved Hausdorff distance method for locating single phase to ground fault in neutral non‐effectively grounded system

Zhang

et al. 2021

IET Generation Trans & Dist

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“…With the same test data sets, its accuracy rate is about 93.3%. In faulty area localization, the threshold-based method reported in [36] is applied for comparison. Dominant-frequency-band waveforms are compared with a constant threshold to find the fault area.…”

Section: A Simulation Verificationmentioning

confidence: 99%

“…In [36], the fifth harmonic components of the ZSC at two neighboring FTUs were extracted and compared. If the difference value exceeds a predefined constant threshold, the two FTUs demarcate the faulty section.…”

Section: Introductionmentioning

confidence: 99%

Faulty Feeder Identification and Fault Area Localization in Resonant Grounding System Based on Wavelet Packet and Bayesian Classifier

Chen

Chu

et al. 2020

Journal of Modern Power Systems and Clean Energy

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Accurate fault area localization is a challenging problem in resonant grounding systems (RGSs). Accordingly, this paper proposes a novel two-stage localization method for single-phase earth faults in RGSs. Firstly, a faulty feeder identification algorithm based on a Bayesian classifier is proposed. Three characteristic parameters of the RGS (the energy ratio, impedance factor, and energy spectrum entropy) are calculated based on the zero-sequence current (ZSC) of each feeder using wavelet packet transformations. Then, the values of three parameters are sent to a pre-trained Bayesian classifier to recognize the exact fault mode. With this result, the faulty feeder can be finally identified. To find the exact fault area on the faulty feeder, a localization method based on the similarity comparison of dominant frequency-band waveforms is proposed in an RGS equipped with feeder terminal units (FTUs). The FTUs can provide the information on the ZSC at their locations. Through wavelet-packet transformation, ZSC dominant frequency-band waveforms can be obtained at all FTU points. Similarities of the waveforms of characteristics at all FTU points are calculated and compared. The neighboring FTU points with the maximum diversity are the faulty sections finally determined. The proposed method exhibits higher accuracy in both faulty feeder identification and fault area localization compared to the previous methods. Finally, the effectiveness of the proposed method is validated by comparing simulation and experimental results.

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A Faulty Feeder Selection Method based on Improved Hausdorff Distance Algorithm for Neutral Non-effectively Grounded System

Zhang

Qiao

et al. 2022

Electric Power Systems Research

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Study on Section Location of Medium Voltage Distribution Network Based on Fifth Harmonic Current Fault Component

Cited by 5 publications

References 1 publication

An improved Hausdorff distance method for locating single phase to ground fault in neutral non‐effectively grounded system

An improved Hausdorff distance method for locating single phase to ground fault in neutral non‐effectively grounded system

Faulty Feeder Identification and Fault Area Localization in Resonant Grounding System Based on Wavelet Packet and Bayesian Classifier

A Faulty Feeder Selection Method based on Improved Hausdorff Distance Algorithm for Neutral Non-effectively Grounded System

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