Study on Protective Coordination for Application of Superconducting Fault Current Limiter

Kim, Jin-Seok; Lim, Sung-Hun; Kim, Jae-Chul

doi:10.1109/tasc.2010.2093594

Cited by 14 publications

(4 citation statements)

References 15 publications

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“…The recovery time of SFCL is set to the value until fault clearing to protect the ACS and electric railway power systems. As the results, the SFCL operates faster than OCR and CB [11]. Then, the SFCL is lasted to the current limiter function until fault clearing of the power system.…”

Section: A Resistor-type Sfcl Modelingmentioning

confidence: 86%

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Protection Scheme Using SFCL for Electric Railways With Automatic Power Changeover Switch System

Shin

Cho

Kim

2012

IEEE Trans. Appl. Supercond.

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In this paper, we propose a protection scheme using a superconducting fault current limiter (SFCL) for the electric railway with traction power supply system with the automatic power changeover switch (ACS) system. The Korean electric railway uses a Scott transformer with many traction power substations. Each traction power substation has a neutral section. The ACS system is being installed at the neutral section and studied. In this system, shorting between the M-and T-phases prevents phase-to-phase faults, which was not considered for the conventional AC railway, due to the ACS. The proposed protection scheme using the SFCL mitigates this problem. In addition, we analysed the effect of the proposed protection scheme using the time-domain transient simulation software PSCAD/EMTDC. Index Terms-Automatic power changeover switch, electric railway, Scott transformer, SFCL.

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Section: A Resistor-type Sfcl Modelingmentioning

confidence: 86%

“…The results of the proposed protection scheme are as follows: if an ACS system short fault occurs, the fault current is decreased by the SFCL within 1/4 cycles to protect the ACS system. The short fault is then cleared within 12 cycles by OCR and CB [7], [9], [11].…”

Section: Acs Short Fault Protection Scheme Using Sfclmentioning

confidence: 99%

Protection Scheme Using SFCL for Electric Railways With Automatic Power Changeover Switch System

Shin

Cho

Kim

2012

IEEE Trans. Appl. Supercond.

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“…The FCL sizing problem is formulated as a non-linear programming problem, where the main objective is to minimize changes in fault current levels due to the addition of DER in the distribution systems. In [87,88], multiple criteria such as the number of super conducting fault current limiter (SFCLs), fault current reduction and total operating time of the relays are considered for determining the optimal placement of SFCLs for protection coordination of relays in an electric power system with DERs [89]. Fast switching time feature of solid state fault current limiter (SSFCL) is also utilised for quick blocking of fault current from DER in the distribution systems.…”

Section: Real-time Implementation Challengesmentioning

confidence: 99%

Protection coordination in distribution systems with and without distributed energy resources- a review

Singh

2017

Prot Control Mod Power Syst

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Emission of greenhouse gases and depletion of fossil fuel reserves are two key drivers, which are forcing the mankind to generate the future energy demand from the renewable energy resources. These resources are generally distributed in nature and are directly integrated at distribution levels. Increasing penetration of the distributed energy resources in distribution power networks creates additional operational and control issues. These are mostly regulatory, economical load dispatching, power quality and protection issues. Generally power distribution systems are protected with the help of dedicated over current based protection schemes. But increasing share of distributed energy resources penetration in electric utilities poses a serious threat to the existing protection coordination schemes of the distribution systems. Distributed energy resources connected distribution networks become interconnected in nature and protection coordination schemes, which are designed for unidirectional flow of fault currents become ineffective/non-functional. Therefore, new protection coordination schemes are required for providing the adequate protection coordination for distributed energy resources connected electric power networks. In the available literature, the protection coordination schemes for radial distribution systems and developments in the area of protection coordination are discussed in detail. A thorough review for all these protection coordination schemes for distribution systems with and without distributed energy resources is done in this review article. It includes the analytical and artificial intelligence based techniques application for coordination of protective relays in the distribution systems. The limitations and research gaps in the area of protection coordination schemes are also presented in this review article. The aim of this research paper is to bring all the available research in the area of relay coordination on one platform, so that it will help the emerging researcher to identify the future scope of relay coordination application for distributed energy resources connected distribution systems.

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“…However, the negative effects of ASCC on the transient stability have not been considered so far. Moreover, in [12][13][14][15], protective coordination of fixed impedance type FCLs with OCR has been evaluated, and as far as the authors are aware, the protective coordination of different operating modes of ASCC and OCRs has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an Active Superconducting Current Controller (ASCC) Considering the Transient Stability and OCR Operation in Transmission and Distribution Systems

Gusheh¹,

Soreshjani²,

Rahat³

2016

Journal of Electrical Engineering and Technology

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-The Active Superconducting Current Controller (ASCC) is a new type of Superconducting Fault Current Limiters (SFCL) which can limit the fault current in different modes. It also has the particular abilities of compensating active and reactive powers for electrical networks. In this paper, it is confirmed that the performance of ASCC in different operating modes introduces a limiting impedance in series with the network which can even degrade the transient stability and the operation of the Over-Current Relays (OCR) employed in a power system. In addition, the model of a three-phase ASCC is simulated, and the effect of descriptive modes on the current limiting level is investigated. For the transient stability analysis, a single machine-infinite bus system is tested, and the effect of operation modes is studied based on an equal area criterion obtaining the critical time and the critical angle. Modifying the setting parameters of OCR such as time dial and pick-up current, the protective coordination is also studied in different operating modes.

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Study on Protective Coordination for Application of Superconducting Fault Current Limiter

Cited by 14 publications

References 15 publications

Protection Scheme Using SFCL for Electric Railways With Automatic Power Changeover Switch System

Protection Scheme Using SFCL for Electric Railways With Automatic Power Changeover Switch System

Protection coordination in distribution systems with and without distributed energy resources- a review

Analysis of an Active Superconducting Current Controller (ASCC) Considering the Transient Stability and OCR Operation in Transmission and Distribution Systems

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