Fault Location on Radial Distribution Networks via Distributed Synchronized Traveling Wave Detectors

Tashakkori, Ali; Wolfs, P.; Islam, Syed; Abu-Siada, A.

doi:10.1109/tpwrd.2019.2948174

Cited by 63 publications

(29 citation statements)

References 26 publications

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“…In [23], the relationship between fault distances and cluster measurement groups was used to locate the fault section. In [24], the synchronized distributed voltage traveling wave observers were used to locate faults, and the effect of power system components on traveling wave propagations was studied.…”

Section: Post-fault Bus Voltages ∆ / /mentioning

confidence: 99%

Single-Line-to-Ground Fault Location in Resonant Grounded Systems Based on Fault Distortions

Chen

Yin

et al. 2021

IEEE Access

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Under single-line-to-ground (SLG) faults, the voltages and currents in resonant grounded systems will inevitably be distorted. To locate the faults quickly and accurately, this paper proposes a location method based on fault distortions. The faulty phase is firstly detected according to the first SLG fault feature below, and then the faulty feeder and section are detected according to the second feature below. 1) On the bus, one of the following distortions occurs. One dropped faulty-phase voltage (FPV) and two raised normalphase voltages (NPVs). One dropped FPV and two NPVs (in which one rises and the other drops), where the product of FPV amplitude distortion and its phase-angle distortion is unique among three phase voltages. 2) On the faulty phase, the current on faulty feeder upstream rises, while the currents on faulty feeder downstream and normal feeders drop. Compared to existing methods, simulation tests show that the proposed method is robust under high impedance faults, and has a simple algorithm and easy engineering implementation. Also, it is effective under harmonics, three-phase imbalance, and different fault positions. INDEX TERMSFault distortions, fault location, single-line-to-ground faults, resonant grounded systems ACRONYMS SLG Single line to ground (F/N) PV (Faulty/Normal) phase voltage RGS Resonant grounded system ZSC Zero-sequence current FF (U/D) Faulty feeder (upstream/downstream) FPC Faulty phase current VFA Voltage fault area:

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Section: Post-fault Bus Voltages ∆ / /mentioning

confidence: 99%

Single-Line-to-Ground Fault Location in Resonant Grounded Systems Based on Fault Distortions

Chen

Yin

et al. 2021

IEEE Access

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“…A reasonable number of relatively low-cost voltage TW observers with GPS time synchronization and radio communication can be optimally deployed to detect and time stamp the traveling wave arrivals at several points of the distribution networks. In continuation of previously published articles by authors in [11] and [12], the main contribution of this paper is to extend the practical feasibility of the TW-based fault locating technique for distribution networks. In this regard, a cost-effective method to optimally place a given number of traveling wave detectors within a distribution network is developed.…”

Section: Introductionmentioning

confidence: 96%

“…Therefore, it is difficult to detect the initial arrival time at the observer point and the subsequent reflections. In [11], a fault location method using distributed synchronized TW detectors to fully observe a radial distribution network is presented. The method is applicable to intermittent and high impedance faults.…”

Section: Introductionmentioning

confidence: 99%

“…The distributed observers increase the chance of detecting weak TWs initiated by HIFs. In [11], the proposed method only utilises the initial TW arrival time and does not rely on the subsequent reflection to locate the intermittent faults. Moreover, the proposed method employs voltage TWs instead of current TWs to locate HIFs.…”

Section: Introductionmentioning

confidence: 99%

“…The reminder of this paper is organized as follows: Section II, presents a brief review for the fault location technique proposed in [11]. Section III describes the proposed TW detectors optimum placement method.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Placement of Synchronized Voltage Traveling Wave Sensors in a Radial Distribution Network

et al. 2021

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A transmission line fault generates transient high frequency travelling waves (TWs) that propagate through the entire network. The fault location can be determined by recording the instants at which the incident waves arrive at various points in the network. In single end-based methods, the incident wave arrival time and its subsequent reflections from the fault point are used to identify the fault location. In heavily branched distribution networks, the magnitude of the traveling wave declines rapidly as it passes through multiple junctions that cause reflection and refraction to the signal. Therefore, detecting the first incident wave from a high impedance fault is a significant challenge in the electrical distribution networks, in particular, subsequent reflections from a temporarily fault may not be possible. Therefore, to identify a high impedance or temporary faults in a distribution network with many branches, loads, switching devices and distributed transformers, multiple observers are required to observe the entire network. A fully observable and locatable network requires at least one observer per branch or spur which is not a cost effective solution. This paper proposes a reasonable number of relatively low-cost voltage TW observers with GPS timesynchronization and radio communication to detect and timestamp the TW arrival at several points in the network. In this regard, a method to optimally place a given number of TW detectors to maximize the network observability and locatability is presented. Results show the robustness of the proposed method to detect high impedance and intermittent faults within distribution networks with a minimum number of observers.

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A Study on Fault Detection, Localization, and Classification Strategies in Modern Distribution Grid

Kumar,

Mathur,

Pratap Singh

2024

Lecture Notes in Electrical Engineering

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Fault Location on Radial Distribution Networks via Distributed Synchronized Traveling Wave Detectors

Cited by 63 publications

References 26 publications

Single-Line-to-Ground Fault Location in Resonant Grounded Systems Based on Fault Distortions

Single-Line-to-Ground Fault Location in Resonant Grounded Systems Based on Fault Distortions

Optimal Placement of Synchronized Voltage Traveling Wave Sensors in a Radial Distribution Network

A Study on Fault Detection, Localization, and Classification Strategies in Modern Distribution Grid

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