Fault location in radial distribution lines using travelling waves and network theory

Dwivedi, Ajendra; Yu, Xinghuo

doi:10.1109/isie.2011.5984305

Cited by 23 publications

(17 citation statements)

References 15 publications

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“…SLG, line to line and three phase faults are simulated at a fault resistance of 5 Ω and a fault inception angle of 30º. The error in estimated distance obtained by (9) is presented in Fig. 9.…”

Section: ) Effect Of 16bit Adc Resolutionmentioning

confidence: 99%

“…These wideband techniques have the advantage of using a short data window, hence they could be implemented in real time applications with a fast response time. Travelling wave techniques detect the high frequency waves reflected from the fault point and use the arrival time for these waves to the measurement point(s) to estimate the fault distance [9]. Despite of being fast and accurate, they require very high sampling rates in range of MHz or even GHz.…”

Section: Introductionmentioning

confidence: 99%

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A double end fault location technique for distribution systems based on fault-generated transients

Aboshady

Sumner

Thomas

2017

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract-This paper presents a fault location technique for distribution systems. It is a two end impedance based technique that uses the fault generated transients to estimate the fault distance over a broad range of frequencies. Then, curve fitting is applied to find the final estimated fault distance. Firstly, the paper introduces the method for the system represented as a lumped RL model. Then, generalized to consider the distribution line capacitance. The technique accounts for presence of loading taps, heterogeneous feeder sections, single phase, two phase and three phase loads and unbalance in distribution system. Single line to ground, line to line, and three phase faults are considered at different fault resistance values up to 100 Ω. Also, the effect of fault inception angle and resolution of analogue to digital converter is investigated. IEEE 34 nodes system is used to evaluate the proposed method.

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Section: ) Effect Of 16bit Adc Resolutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A double end fault location technique for distribution systems based on fault-generated transients

Aboshady

Sumner

Thomas

2017

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)

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“…11 Traveling wave method is based on the principle that the fault distance is directly proportional to the propagation time of the traveling wave from the fault point to the detecting point, including single-ended method and double-ended method. [12][13][14][15] As the distribution network has multiple terminals and multiple branches, the doubleended method is inapplicable. And the single-ended method using transient traveling waves generated by fault also has a problem that the identification of the secondary waves reflected from the fault point in the complicated transient wave propagation process is difficult.…”

Section: The Authors International Transactions On Electrical Energy mentioning

confidence: 99%

“…But the premise of this method is the distribution automation system, so it will lose efficacy when few feeder terminal units are installed, such as in China . Traveling wave method is based on the principle that the fault distance is directly proportional to the propagation time of the traveling wave from the fault point to the detecting point, including single‐ended method and double‐ended method . As the distribution network has multiple terminals and multiple branches, the double‐ended method is inapplicable.…”

Section: Introductionmentioning

confidence: 99%

A single-phase earth fault location scheme for distribution feeder on the basis of the difference of zero mode traveling waves

Zhou

Shu

Han

2016

Int. Trans. Electr. Energ. Syst.

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SummaryTo eliminate the effect of line structure and unbalanced loads on the location of single-phase earth fault in distribution network, a new fault location method is proposed. In this method, the difference of the 2 zero mode traveling waves is taken as the criterion via injecting high voltage pulses into fault phase and nonfault phase, respectively. Through analyzing the transient response characteristic of distribution transformer and the propagation equation of traveling wave at the fault point, it is theoretically proved that the first difference of the 2 zero mode traveling waves is rooted in the reflection of the twice different incident wave of aerial mode voltage at the fault point, and further the fault location formula is obtained. The PSCADbased simulation results show that the proposed method is effective and accurate to estimate fault distance. Also it has an excellent precision within certain extent.

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“…Hence, this limits the use of representative techniques such as an impedance-based method [18,19]. In the case of travelling wave-based methods, the multi-estimation problem is solved by using high frequency components [20][21][22]. However, the accuracy of these methods is still decreased because the travelling wave is disturbed by branch [23].…”

Section: Introductionmentioning

confidence: 99%

Development of fault section identification technique for low voltage DC distribution systems by using capacitive discharge current

Noh

Kim

Gwon

et al. 2018

J. Mod. Power Syst. Clean Energy

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The increasing importance of energy efficiency has led to several studies related to the construction of a reliable low voltage DC (LVDC) distribution system. Specifically, studies on a protection scheme that considers the fault characteristics of an LVDC distribution system are essential to improve system reliability. When compared to a conventional distribution system, the most distinct feature of an LVDC distribution system is the existence of a capacitive discharge current from converters under a fault condition that results in the prompt operation of protection devices. Therefore, this study involves proposing a precise and rapid technique to identify the fault section in an LVDC distribution system. The technique involves two stages, namely: an analysis stage to analyze the capacitive discharge current and a decision stage to identify the fault section based on the fault type. A detailed discussion of each step is presented and its feasibility is verified based on the results of simulations with an ElectroMagnetic Transients Program and MATLAB Ò .

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Fault location in radial distribution lines using travelling waves and network theory

Cited by 23 publications

References 15 publications

A double end fault location technique for distribution systems based on fault-generated transients

A double end fault location technique for distribution systems based on fault-generated transients

A single-phase earth fault location scheme for distribution feeder on the basis of the difference of zero mode traveling waves

Development of fault section identification technique for low voltage DC distribution systems by using capacitive discharge current

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