Impedance-based fault location technique for distribution systems in presence of distributed generation

Aboshady, F. M.; Alaam, M. A.; Azmy, Ahmed M.

doi:10.1109/sege.2013.6707931

Cited by 13 publications

(17 citation statements)

References 11 publications

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“…the bus currents at each bus are calculated using Eqs. (7) and (8). The bus currents are summed up in backward path to give branch currents towards central bus which is at upstream by Eq.…”

Section: Backward Sweepmentioning

confidence: 99%

“…The model proposed consist of relay, recloser and FCIs. In [7], Abo-shady et.al proposed an analytical approach for determining the fault location in distribution networks in presence of distributed generation (DG). The proposed technique presented a method to overcome the error caused due to distribution of load along the feeder, non-homogenous sections, high DG penetration level, and different fault resistance values.…”

Section: Introductionmentioning

confidence: 99%

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Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

Jain¹,

Ghosh²,

Mohanta³

2019

Prot Control Mod Power Syst

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Power distribution systems are profoundly inclined to disturbances like untimely switching of breakers & relays, sympathetic tripping, and uncertainties regarding fault location. Thus, system stability and reliability are greatly affected. In this way, situational awareness and system integrity are the crucial factors in developing power system security, as it empowers successful decision making & timely reaction by the operators to any disturbance and also maintaining continuity of power supply. This paper focuses on the enhancement of situational awareness by fault location through fault passage indicators (FPI) to improve nominal impedance-based methods in distribution networks. Also, the proposed method is validated by comparing it with Intelligent Electronic Device (IED) based fault location method. Further, simultaneous reconfiguration of the system is incorporated to maintain the continuity of supply. The analysis has been tested on IEEE 33 bus distribution system.

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“…the bus currents at each bus are calculated using Eqs. (7) and (8). The bus currents are summed up in backward path to give branch currents towards central bus which is at upstream by Eq.…”

Section: Backward Sweepmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

Jain¹,

Ghosh²,

Mohanta³

2019

Prot Control Mod Power Syst

View full text Add to dashboard Cite

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“…Authors in [45] utilized EMTP (Electro Magnetic Transient Program) software to carry out impedance-based fault analysis on a 11 kV, 27 nodes distribution network. They simulated single-line-to-ground fault and three phase faults with a fault impedance of 50.…”

Section: Impedance (And Admittance)-based Protectionmentioning

confidence: 99%

A Comprehensive Review of Protection Schemes for Distributed Generation

Shahzad¹,

Asgarpoor²

2017

EPE

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Due to the increasing demand of energy and the need for nonconventional energy sources, distributed generation (DG) has come into play. The trend of unidirectional power flow has been gradually shifting. With new technology comes new challenges, the introduction of DG into the conventional power system brings various challenges; one of the major challenges is system protection under DG sources. These sources pose a significant challenge due to bidirectional flows from DGs as well as lower fault current contribution from inverter interfaced DGs. This paper reviews existing protection schemes that have been suggested for active distribution networks. Most of these protection strategies apply only to smaller distribution systems implying that they may need to be extended to larger systems with a much higher penetration of distributed generation. In the end, a potential protection scheme has also been recommended as a future work.

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“…Several protection schemes have been proposed in the literature to deal with the aforementioned issues, such as impedance‐based protection, distance protection, traveling wave‐based protection, adaptive protection with central processing unit, and differential protection schemes. Impedance and traveling wave‐based schemes are unsuitable for microgrids with shorter distribution lines.…”

Section: Introductionmentioning

confidence: 99%

Microgrid protection using iterative filtering

Gadanayak

Mallick

2019

Int Trans Electr Energ Syst

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Summary This paper proposes an intelligent, nonpilot protection strategy for inverter‐dominated microgrids using iterative filtering‐based empirical mode decomposition (IFEMD) and extreme learning machine. The instantaneous frequency envelope (IFE) and the instantaneous Teager energy envelope (ITEE) of the most informative intrinsic mode function (MIIMF) obtained through processing the local current signal by IFEMD is used for fault detection and fault phase identification. But the disadvantage of IFEMD, like any other variant of empirical mode decomposition (EMD), is that for useful decomposition, it requires at least three cycles of data samples. For the above reason, a mathematical morphology‐based dynamic event detection scheme is devised to pinpoint the fault inception instants which allows extraction of half‐cycle postfault current IFE and ITEE. A fewer number of inputs to the classifier make the classification task faster and less computationally complex. The proposed scheme is extensively validated for both arcing and nonarcing faults with wide variations in operating parameters for different topologies and modes of operations of a standard microgrid model.

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Impedance-based fault location technique for distribution systems in presence of distributed generation

Cited by 13 publications

References 11 publications

Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

Augmentation of situational awareness by fault passage indicators in distribution network incorporating network reconfiguration

A Comprehensive Review of Protection Schemes for Distributed Generation

Microgrid protection using iterative filtering

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