Fault-Location Scheme for Power Distribution System with Distributed Generation

Alwash, Shamam; Ramachandaramurthy, Vigna K.; Mithulananthan, Nadarajah

doi:10.1109/tpwrd.2014.2372045

Cited by 121 publications

(78 citation statements)

References 27 publications

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“…Impedance is calculated at power frequency [6], [7], or at a higher frequency [2]. Voltages and currents are usually measured only at the buses of substations and/or distributed-generation units [8]- [10]. In recent years smart meters have been exploited to provide more fault information [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

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Systematically and Fast Processing Fault on Power Distribution Grids Based on a Simplified Model Part II: Advanced Approaches

Zhang¹,

Xue²,

Zhang³

2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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Abstract-This is Part II of a two-part paper which presents a methodology for fault location and isolation and service restoration (FLISR) for power distribution grids. The Criterion 1 discussed in Part I is adapted to locate faults when distributed generations (DGs) exist. For DGs with larger capacity, faults can be located by coordinating the reclosing of circuit-breakers and cutting off DGs. Two advanced schemes for service restoration are presented. The modeled service restoration has priority. The service restoration with minimum load shedding assures a solution if the other three schemes fail. An algorithm of switching sequence to minimize the interruption cost is proposed. The proposed approaches to FILSR have been imbedded in 26 power distribution automation systems of 10kV grids since 2013, and have been proven to be a great success.

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Section: Introductionmentioning

confidence: 99%

“…Most approaches for network reconfiguration assume that the distribution system is balanced, whereas unbalanced systems are studied in [6] and [33].The introduction of Distribution generations (DGs) increases not only the complexity of grids, but also the degree of difficulty of FLISR [8], [9], [26], [33], [34].…”

Section: Introductionmentioning

confidence: 99%

Systematically and Fast Processing Fault on Power Distribution Grids Based on a Simplified Model Part II: Advanced Approaches

Zhang¹,

Xue²,

Zhang³

2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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“…However, there were no metric to evaluate the reliability or credibility of these results numerically. Additionally, in the smart distribution grid, an increasing number of distributed generators (DG) are being integrated, which has demonstrated critical influences on the existing direction-judgment algorithms [17,18].…”

Section: Introductionmentioning

confidence: 99%

A Fault-Tolerant Location Approach for Transient Voltage Disturbance Source Based on Information Fusion

et al. 2016

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This paper proposed a fault-tolerant approach based on information fusion (IF) to automatically locate the transient voltage disturbance source (TVDS) in smart distribution grids. We first defined three credibility factors that will influence the reliability of the direction-judgments at each power quality monitor (PQM). Then we proposed two rules of influence and a verification factor for the distributed generation (DG) integration. Based on the two sets of direction-judgment criteria, a novel decision-making method with fault tolerance based on the IF theory is proposed for automatic location of the TVDS. Three critical schemes, including credibility fusion, conflict weakening, and correction for DG integration, have been integrated in the proposed fusion method, followed by a reliability evaluation of the location results. The proposed approach was validated on the IEEE 13-node test feeder, and the TVDS location results demonstrated the effectiveness and fault tolerance of the IF based approach.

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“…Algorithms with use of voltage and current measurements at the DFRs and based upon the bus impedance matrix, through which the voltage and current quantities can be expressed as a function of the fault location and fault resistance, are presented in (BRAHMA, 2011;ALWASH;RAMACHANDARAMURTHY;MITHULANANTHAN, 2015). (BRAHMA, 2011) presents a general method to locate faults in multi-power, unbalanced distribution systems with significant and arbitrary penetration of DG, where conventional protective devices may not coordinate, and is able to adapt to changes in the topology of the system.…”

Section: Fault Location In Distribution Network With Dg Unitsmentioning

confidence: 99%

“…(BRAHMA, 2011) presents a general method to locate faults in multi-power, unbalanced distribution systems with significant and arbitrary penetration of DG, where conventional protective devices may not coordinate, and is able to adapt to changes in the topology of the system. The scheme proposed in (ALWASH; RAMACHANDARAMURTHY;MITHULANANTHAN, 2015) identifies the possible fault locations using an alternative formulation of the impedancebased method that overcomes the requirement of fault-type identification by using only one fault-location equation. The proposed scheme is applicable for all DG types without the need for their individual parameters, considering balanced and unbalanced laterals, the capacitive effect of distribution line and all shunt fault types.…”

Section: Fault Location In Distribution Network With Dg Unitsmentioning

confidence: 99%

Fault location in power distribution networks with distributed generation.

Souto¹

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Este exemplar foi revisado e corrigido em relação à versão original, sob responsabilidade única do autor e com a anuência de seu orientador. This research presents the development and implementation of fault location algorithms in power distribution networks with distributed generation units installed along their feeders. The proposed algorithms are capable of locating the fault based on voltage and current signals recorded by intelligent electronic devices installed at the end of the feeder sections, information to compute the loads connected to these feeders and their electric characteristics, and the operating status of the network. In addition, this work presents the study of analytical models of distributed generation and load technologies that could contribute to the performance of the proposed fault location algorithms. The validation of the algorithms was based on computer simulations using network models implemented in ATP, whereas the algorithms were implemented in MATLAB.Keywords: power system protection, power system automation, fault location, distributed generation. ResumoSouto, Laiz Localização de faltas em redes elétricas de distribuição com a presença de unidades de geração distribuída. 114 p. Dissertação de mestradoEscola Politécnica, Universidade de São Paulo, 2016.Esta pesquisa apresenta o desenvolvimento e a implementação de algoritmos para localização de faltas em redes primárias de distribuição de energia elétrica que possuem unidades de geração distribuída conectadas ao longo dos seus alimentadores. Esses algoritmos são capazes de efetuar a localização de faltas utilizando registros dos sinais de tensões e correntes realizados por dispositivos eletrônicos inteligentes, instalados nas saídas dos alimentadores de distribuição, além de informações que permitam determinar os valores das cargas conectadas nesses alimentadores, características elétricas, e o estado operativo da rede de distribuição. Ademais, este trabalho apresenta o estudo de modelos analíticos de unidades de geração distribuída e de cargas que poderiam contribuir positivamente com o desempenho dos algoritmos propostos. A validação dos algoritmos foi realizada através de simulações computacionais, utilizando modelos de rede implementados em ATP e os algoritmos foram implementados em MATLAB.Palavras-chave: proteção de sistemas elétricos, automação de sistemas elétricos, localização de faltas, geração distribuída. List of illustrations List of tables

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Fault-Location Scheme for Power Distribution System with Distributed Generation

Cited by 121 publications

References 27 publications

Systematically and Fast Processing Fault on Power Distribution Grids Based on a Simplified Model Part II: Advanced Approaches

Systematically and Fast Processing Fault on Power Distribution Grids Based on a Simplified Model Part II: Advanced Approaches

A Fault-Tolerant Location Approach for Transient Voltage Disturbance Source Based on Information Fusion

Fault location in power distribution networks with distributed generation.

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