Experimental Results of a 15 kV, 140 A Superconducting Fault Current Limiter

Kozak, J.; Majka, M.; Kozak, S.

doi:10.1109/tasc.2017.2651120

Cited by 22 publications

(14 citation statements)

References 21 publications

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“…The investigation of the development of coreless inductive-type SFCL has been started in the recent decade. The successful test results have been also reported for 15 kV prototype [52]. AC-type SFCL (AC-SFCL) is another attractive idea which can be considered as a coreless inductive-type SFCL [53,54].…”

Section: Coreless/ac Inductive-type Sfclmentioning

confidence: 88%

On the advance of SFCL: a comprehensive review

Barzegar-Bafrooei

Foroud

Ashkezari³

et al. 2019

IET Generation, Transmission & Distribution

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Section: Coreless/ac Inductive-type Sfclmentioning

confidence: 88%

On the advance of SFCL: a comprehensive review

Barzegar-Bafrooei

Foroud

Ashkezari³

et al. 2019

IET Generation, Transmission & Distribution

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“…For instance, the damage in substation equipment aforementioned also causes financial losses to the utilities. However, instead of replacing all installed equipment, a proper solution is the use of a Fault Current Limiter (FCL) in the system 6‐9 …”

Section: Introductionmentioning

confidence: 99%

Design and tests of solid‐state fault current limiters prototypes

Bitencourt

Dias

França

et al. 2020

Int Trans Electr Energ Syst

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Summary The fault current level in distribution systems has increased in the last years mainly due to the energy consumption is in the limit of the production capacity and also the insertion of distributed generation, since the short circuits happen very closer to the generators now. In addition to this, most of the power substations were designed decades ago, so their equipment is overcome, and they may be damaged in a fault occurrence. To effectively protect the settled equipment or to avoid high investment costs in replacing them, one possible solution is to install a solid‐state fault current limiter (SSFCL), which may reduce the fault current to a value under the supported level. In this context, this work proposes the development of two kinds of SSFCLs: series‐switched reactor and resonant circuit. These devices were designed and compared experimentally in bench prototypes. The measurements showed that both topologies could reduce the fault current from 600 APEAK to 75 APEAK. Both SSFCL‐tested configurations were implemented using silicon controlled rectifier or insulated gate bipolar transistor. The results present the comparison between them, showing the impact in the first semi‐cycle current profile, depending on the type of semiconductor switch adopted. This article also proposes a fault detection algorithm evaluated through digital implementation in a microcontroller. The algorithm detects the fault by the instantaneous current value and its derivative, using a control strategy that avoids false detection due to measurement noises. The theoretical analysis and results are useful contributions to support the SSFCL topology choice regarding its application.

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“…Outro fator que contribui para o aumento da corrente de curto-circuito é a introdução de geração distribuída na rede, uma vez que, dependendo do tipo de gerador, na ocorrência de uma falta, o fluxo de corrente desta geração se soma à corrente de curtocircuito [4] [5]. Uma forma de resolver esse problema é através da inserção de Limitadores de Corrente de Curto-Circuito (LCCCs) no sistema [6]- [9], que é uma solução técnica e economicamente mais interessante do que simplesmente efetuar a troca dos equipamentos já instalados.…”

Section: Introductionunclassified

Análise Técnica e Operacional de Limitadores de Correntes de Curto-Circuito

Bitencourt¹,

Koji²,

Scofano³

et al. 2020

Eletrônica de Potência

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Resumo -O aumento da demanda de energia elétrica e o crescimento da geração distribuída levam ao aumento da corrente de curto-circuito nas subestações. A maioria das subestações brasileiras, por exemplo, foram projetada décadas atrás, portanto seus equipamentos podem não suportar os novos níveis de corrente de curtocircuito. Para proteger os equipamentos instalados ou evitar altos custos de investimento na sua substituição destes, é possível instalar limitadores de corrente de curto-circuito. Este trabalho apresenta uma avaliação de duas topologias de limitadores através de análises dos aspectos técnicos e operacionais. Protótipos de pequena escala são empregados para entender melhor essas análises. As topologias estudadas são denominadas indutor série chaveado e circuito ressonante. A corrente de curto-circuito teve uma redução para a topologia indutor série chaveado de 69,7% e 72,6% para a topologia ressonante.Abstract -The increase in demand for electric power and the growing of distributed generation led to the increase of the short-circuit current in the substations. Most of these Brazilian substations, for example, were designed decades ago, so their equipment may not support the new short-circuit current levels. To protect the installed equipment or to avoid high investment costs in replacing them, it is possible to install fault current limiters. This work provides technical evaluation of two known topologies of fault current limiters through theoretical analyses of technical and operational aspects. Small-scale prototypes are employed to get a better understanding of those analyses. The studied topologies are called series switched-inductor and resonant circuit. The short-circuit current had a reduction for the switched-inductor topology of 69.7% and 72.6% for the resonant topology.

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Experimental Results of a 15 kV, 140 A Superconducting Fault Current Limiter

Cited by 22 publications

References 21 publications

On the advance of SFCL: a comprehensive review

On the advance of SFCL: a comprehensive review

Design and tests of solid‐state fault current limiters prototypes

Análise Técnica e Operacional de Limitadores de Correntes de Curto-Circuito

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