Proposal of flux flow resistance type fault current limiter using Bi2223 high T/sub c/ superconducting bulk

Shimizu, Hirotaka; Yokomizu, Yasunobu; Matsumura, Toshiro; Murayama, Norimitsu

doi:10.1109/tasc.2002.1018540

Cited by 37 publications

(12 citation statements)

References 7 publications

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“…The authors of [34,35] propose a solution using the fluxflow state exhibited by Type-II superconductors. If the fault current exceeds the critical current and the temperature remains below the critical temperature, the superconductor exhibits a small resistance.…”

Section: Simulation Resultsmentioning

confidence: 99%

RETRACTED: Analysis of resistive SFCL in a test-bed microgrid

Khuntia

Samantaray

2015

Ain Shams Engineering Journal

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This paper tests and analyzes the working capability of a resistive superconducting fault current limiter (SFCL) in a microgrid. The microgrid is a test-bed, consisting of a conventional power plant, two renewable energy sources in the form of wind-farm and solar-farm as two distributed generation (DG) units and five loads (i.e., industrial and domestic). Utilization of DG in mainstream is increasing and hence, various consequences that arise from DG penetration are to be considered accordingly. It is observed that DG penetration in existing distribution alters the fault current during a grid disturbance and hence imbalances the system. Based on this, the research work focuses on contribution of fault current from renewable energy sources in a microgrid, and how resistive SFCL offers positive result in minimizing the fault levels. The test-bed is modeled in MATLAB/Simulink, and simulation results are presented to show the effectiveness of resistive SFCL during various fault conditions. Ó 2015 Faculty of Engineering, Ain Shams University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Simulation Resultsmentioning

confidence: 99%

RETRACTED: Analysis of resistive SFCL in a test-bed microgrid

Khuntia

Samantaray

2015

Ain Shams Engineering Journal

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“…However, as reported in Ref. 8, when the flux resistance of the HTS is utilized, this resistance can be increased by applying a magnetic field to the HTS, thus increasing the limiting impedance itself. In this context, the magnetic field density treated in this study can be considered as being applied uniformly to the HTS during the current limiting period, and can be used to estimate the effectiveness of current limiting.…”

Section: Generated Magnetic Flux Densitymentioning

confidence: 91%

Fundamental performance of superconducting fault current limiter with two air core coils

Shimizu

Yokomizu

Matsumura

2008

Electrical Engineering Japan

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SUMMARYIn this paper, we theoretically compared the fundamental characteristics of fault current limiter (FCL) with high-Tc superconductor (HTS) and two coaxial air-core coils based on steady-state analysis. Two types of FCL are possible. One is parallel type and the other is transformer type. The parallel type can be divided into two types according to the combination of the winding direction of coils. That is, there are two cases that the coils are wound so that the magnetic fluxes induced by coils reduce and increase each other. In this paper, we called them parallel type 1 and 2, respectively. There is no significant difference in the HTS volume required to satisfy both the specified limiting impedance Z FCL and initial current I ini in limiting operation among those three FCLs although the HTS in each type of FCL has different length and cross-sectional area. In the cases of those FCLs, we can improve the current limiting performance by arranging the HTS in the coils and applying the magnetic flux to the HTS in the limiting operation. The magnitudes of the magnetic flux density are almost the same. From the viewpoint of the FCL impedance in normal operation, parallel type 1 has the most desirable structure. On the other hand, transformer type is the best to eliminate the magnetic flux applied to the HTS in the normal operation.

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“…The heat produced is dissipated by the cryogenic system and material's temperature remains constant. Although this represents the ideal behavior of the SFCL, the amount of bulk HTS used (up to hundreds of meters [12]) may turn it unfeasible.…”

Section: Operation Principlementioning

confidence: 99%

High Temperature Superconducting Fault Current Limiters as Enabling Technology in Electrical Grids with Increased Distributed Generation Penetration

Pina

Neves

Álvarez

et al. 2010

IFIP Advances in Information and Communication Technology

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Abstract. Amongst applications of high temperature superconductors, fault current limiters are foreseen as one of the most promising in power systems. Several topologies have been developed in the last years, taking advantage of different superconductors' properties. Increasing distributed generation (DG) penetration, based on renewable energy, adds new short-circuit sources to electrical grids, which brings several energy quality and protection issues. Superconducting fault current limiters can obviate these problems, representing thus an enabling technology for DG penetration. In this paper current limiter topologies are presented, its operations principles, strengths and weaknesses, in the context of these DG grids. In the end, future trends are discussed.

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Proposal of flux flow resistance type fault current limiter using Bi2223 high T/sub c/ superconducting bulk

Cited by 37 publications

References 7 publications

RETRACTED: Analysis of resistive SFCL in a test-bed microgrid

RETRACTED: Analysis of resistive SFCL in a test-bed microgrid

Fundamental performance of superconducting fault current limiter with two air core coils

High Temperature Superconducting Fault Current Limiters as Enabling Technology in Electrical Grids with Increased Distributed Generation Penetration

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