A Novel Fault Location Method for High Impedance Grounding Fault in Distribution Network

Chen, Jie; Li, Yong; Xie, Liwei; Hou, Le; Liu, Cheng; Cao, Yijia

doi:10.1109/ei252483.2021.9713439

Cited by 2 publications

(4 citation statements)

References 12 publications

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“…The fault detection method based on zero-sequence power correlation between the first and the last ends of the line given in reference 6 is compared with the propose method. The detection result of the fault region for each method is shown in Table 4.…”

Section: Fault Region Identification Simulationmentioning

confidence: 99%

“…The detection result of the fault region for each method is shown in Table 4. The method proposed in reference 6 is easy to misjudge the branch route, and cannot be employed in phase-to-phase fault and neutral point ungrounded systems. In contrast, the method proposed in the paper can identify the fault region accurately and is unaffected by fault type or neutral point grounding mode.…”

Section: Fault Region Identification Simulationmentioning

confidence: 99%

“…Utilities have traditionally used electrical quantities for defect detection, which comprise positive sequence quantities [1][2] and zero sequence values [3][4][5][6] . However, distribution network topology and transition resistance strongly influence electrical quantities, particularly zero-sequence quantities.…”

Section: Introductionmentioning

confidence: 99%

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Current Spectral Norm and Phase Variation Based Fault Region Identification for Active Distribution Network

Chen

Zeng

et al. 2023

Preprint

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The paper presents a fault region identification method for the active distribution network (ADN) with limited PMU. First, PMU configuration and region partition are developed based on the network topology. Next, the difference in three-phase current variations between the normal and fault areas of the ADN is analyzed. A multi-dimensional state monitoring matrix is built using the measured current data. The spectral norm ratio coefficient is constructed based on the 2-norm to lower the complexity of the multi-dimensional state monitoring matrix and quantify the difference in state changes before and after the fault occurs in each region. Then, the fault region is identified by combining each region’s spectral norm ratio coefficient and the change of the current phase. Finally, an IEEE 33-node simulation model is created to simulate faults under different working conditions. According to the simulation results, the suggested approach is less impacted by fault type, neutral point grounding mode, and transition resistance. Furthermore, even if the communication does not match the rigorous synchronization requirements, the suggested technique can still complete the fault identification of the distribution network correctly and has high robustness.

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Section: Fault Region Identification Simulationmentioning

confidence: 99%

Section: Fault Region Identification Simulationmentioning

confidence: 99%

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Current Spectral Norm and Phase Variation Based Fault Region Identification for Active Distribution Network

Chen

Zeng

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, these methods are mainly designed for the sin-gle phase to ground faults (SPGFs). The methods, which are based on the complicated mathematics algorithm, artificial intelligence, big data and so on, mainly based on the features of transient voltage and current or current only [7][8][9][10][11][12][13][14]. Although these methods can detect the SPLB-SSCG, SPLB-LSCG, SPLB-BSCG faults [15], their sensitivity is low due to small fault current [16].…”

Section: Introductionmentioning

confidence: 99%

Single phase line‐broken fault detection and location based on differential voltage in radial distribution network

Chang

Zeng

Dou³

et al. 2022

IET Generation Trans & Dist

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Single phase line-broken (SPLB) fault is one kind of high impedance fault (HIF). When a SPLB fault occurs, there are four scenarios: SPLB fault with neither side conductors grounded (SPLB-NSCG), with source side conductor grounded only (SPLB-SSCG), with load side conductor grounded only (SPLB-LSCG), with both side conductors grounded (SPLB-BSCG). Traditional HIF detection methods using current or voltage characteristics have low sensitivity to SPLB fault. In this paper, voltage characteristics are analysed firstly in the cases of the first three scenarios of SPLB fault, respectively. Theoretical analysis finds that the voltage at both the sides of the disconnection point is significantly different. A high sensitive SPLB fault detection method based on differential voltage is proposed for radial distribution network with different data synchronization ability. Finally, SPLB fault location methods based on centralized intelligent mode feeder automation (FA) and intelligent distributed mode FA are proposed. Simulations based on PSCAD verify that the proposed SPLB fault detection method is feasible, highly sensitive and immune to the neutral grounded mode, fault scenarios and fault resistance.

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A Novel Fault Location Method for High Impedance Grounding Fault in Distribution Network

Cited by 2 publications

References 12 publications

Current Spectral Norm and Phase Variation Based Fault Region Identification for Active Distribution Network

Current Spectral Norm and Phase Variation Based Fault Region Identification for Active Distribution Network

Single phase line‐broken fault detection and location based on differential voltage in radial distribution network

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