Distributed travelling‐wave‐based fault location without time synchronisation and wave velocity error

Ding, Jiali; Li, Lixue; Zheng, Yongjun; Zhao, Chen; Chen, Hongtao; Wang, Xin

doi:10.1049/iet-gtd.2016.1778

Cited by 43 publications

(25 citation statements)

References 25 publications

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“…In two‐terminal travelling wave‐based methods, the arrival time of the first travelling wave peak at the two line terminals is used to estimate the fault location. Two‐terminal travelling wave‐based methods using synchronized data for fault location are shown in previous studies. Shi et al presented a two‐terminal‐based method to avoid the permanent fault conditions in distribution feeders by monitoring the generated travelling wave due to the subhealth condition of the feeder in real time.…”

Section: Existing Fault Location Techniquesmentioning

confidence: 99%

“…Shi et al presented a two‐terminal‐based method to avoid the permanent fault conditions in distribution feeders by monitoring the generated travelling wave due to the subhealth condition of the feeder in real time. The method proposed in a previous study consists of three measurement points, one at the midpoint of line and other two measurement points at the two terminals of the line. The measurement at the midpoint records the time tags of the subsequent wavefronts to avoid time synchronization requirements.…”

Section: Existing Fault Location Techniquesmentioning

confidence: 99%

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A Literature Review on Methodologies of Fault Location in the Distribution System with Distributed Generation

Kumar

Saxena

2020

Energy Tech

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In the last decade, with increasing power supply from distributed generation (DG) to the distribution system, the traditional passive radial distribution systems transformed into an active multisource system. The nature of fault location schemes designed for the distribution system has traditionally been based on unidirectional power flow assumptions, making them ineffective for a distribution system with a higher level of DG penetration. New grid regulations require DGs to remain connected to the system in the event of a fault to provide support to the grid and improve system reliability. This makes the fault location process important as the timely location of a fault speeds up the restoration process, which improves the system reliability. Herein, providing a comprehensive review of the available techniques for fault location in the distribution system with DG penetration is focused on. An analysis is given on the shortcomings of traditional protection methods when applied to DG‐integrated distribution systems. A comparative analysis is carried out in which the merit and demerit of each technique is assessed. A discussion on some other important technical issues arising due to DG integration, such as effects on the stability of the distribution system, is also given.

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Section: Existing Fault Location Techniquesmentioning

confidence: 99%

Section: Existing Fault Location Techniquesmentioning

confidence: 99%

A Literature Review on Methodologies of Fault Location in the Distribution System with Distributed Generation

Kumar

Saxena

2020

Energy Tech

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“…It was first designed for the application of unsynchronized dual-power single-line fault location. Related research has been reported in [17]. In this paper, the structure of the mixed lines is quite different from the single-line system, and the proposed algorithm is entirely different.…”

Section: Introductionmentioning

confidence: 99%

A novel fault location algorithm for mixed overhead‐cable transmission system using unsynchronized current data

Ding

Wang

Zheng

et al. 2019

IEEJ Transactions Elec Engng

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The characteristic impedance value of the overhead line is different from that of the underground cable. Existing traveling wave‐based fault location methods for mixed power transmission systems have setbacks including location error caused by wave velocity and difficulty in detecting wave arrival time. In order to solve these problems, the increase of available information from different locations by installing wire‐based sensors along the power line is a feasible solution. In this paper, a traveling wave‐based fault location system, which is based on the current data measured at the midpoint of the overhead line and the joint point, is introduced. The data at these two locations are measured by the wire‐based current sensor we designed. The whole transmission line system is divided by these two sensors into three segments. The first step of this proposed method is to record the postfault current data at the two measuring devices. Second, by comparing the amplitudes and polarities of the current at these two measurement points, the faulty segment can be identified. Finally, postfault wave propagation paths are ascertained; the accurate velocity values of the waves in the overhead line and underground cable are obtained; and then, the fault point is located without the need of time synchronization. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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“…The method proposed in Ref. consists of three measurement points at both ends and the mid‐point of the line. The measurement at mid‐point records the time tags of the subsequent wavefronts to avoid time synchronization requirement.…”

Section: Introductionmentioning

confidence: 99%

Fault location in multilateral distribution network with electric vehicle charging load

Kumar¹,

Saxena

2019

Energy Storage

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In a multilateral distribution network, faults at different locations can generate the same voltage and current at the substation; hence, the calculated fault location can correspond to several places in the network. To avoid this major problem, a two‐terminal travelling wave‐based fault location method is presented in this article, which at first identifies the faulted lateral in the distribution network and then estimates the exact fault location. The proposed fault location scheme uses wavelet energy entropy of the recorded three‐phase current signals and the magnitude of ground mode component wavelet modulus maxima (WMM) for fault detection and fault type identification in the network. After that, the faulted lateral identification followed by the exact fault location is performed using the aerial mode component WMM of the fault‐generated current transients. Since the integration of electric vehicle (EV) charging load is increasing day by day to the distribution network, the performance of the proposed algorithm is tested with EV charging load along with distributed generation integrated into the distribution network. Modeling and simulation of the distribution network and EV load are performed in MATLAB/SIMULINK. The simulation results show that the proposed method can accurately locate fault under different operating conditions.

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Distributed travelling‐wave‐based fault location without time synchronisation and wave velocity error

Cited by 43 publications

References 25 publications

A Literature Review on Methodologies of Fault Location in the Distribution System with Distributed Generation

A Literature Review on Methodologies of Fault Location in the Distribution System with Distributed Generation

A novel fault location algorithm for mixed overhead‐cable transmission system using unsynchronized current data

Fault location in multilateral distribution network with electric vehicle charging load

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