Experimental Tests of a Resistive SFCL Integrated With a Vacuum Interrupter

Pei, Xiaoze; Smith, Alexander C.; Shuttleworth, R.

doi:10.1109/tasc.2016.2537144

Cited by 7 publications

(10 citation statements)

References 12 publications

(11 reference statements)

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“…This confirmed that the fault current level did not affect the operation of the vacuum interrupter [14]. These practical experimental experiences are useful in developing the DC circuit breaker.…”

Section: Ac Sfcl Integrated With Vacuum Interrupter Systemsupporting

confidence: 64%

See 1 more Smart Citation

Superconducting Interface for a DC Circuit Breaker

Pei¹,

Smith²,

Barnes³

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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High voltage direct current (HVDC) circuit breakers are a key technology to enable fault management for multi terminal DC (MTDC) networks. DC circuit breakers using superconductors for current limiting have been proposed previously and experimentally tested at low voltage levels. Superconductor materials are ideal for DC networks: they do not incur losses operating with pure DC current. This paper will focus on the interface between the superconductor element and the other elements of the breaker, i.e., the mechanical switch and semiconductor elements. A 10 kV DC circuit breaker will be developed based on the optimized interface and control strategy.

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Section: Ac Sfcl Integrated With Vacuum Interrupter Systemsupporting

confidence: 64%

“…An AC SFCL integrated with a vacuum interrupter was investigated experimentally at the University of Manchester [13,14]. The potential of a fast-acting actuator whose operation is independent from the fault current level and can also be latched in the open/closed position was investigated.…”

Section: Ac Sfcl Integrated With Vacuum Interrupter Systemmentioning

confidence: 99%

Superconducting Interface for a DC Circuit Breaker

Pei¹,

Smith²,

Barnes³

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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“…The separation distance between contacts was 2 mm. A moving coil actuator was built and tested to provide controllable and high speed operation on a previous resistive SFCL integrated with a vacuum interrupter [12]. Details of the design and testing of the vacuum interrupter actuator are presented in [13].…”

Section: A Experimental Setupmentioning

confidence: 99%

Design and Experimental Tests of a Superconducting Hybrid DC Circuit Breaker

Pei

Cwikowski

Smith

et al. 2018

IEEE Trans. Appl. Supercond.

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Abstract-Direct current (DC) circuit breakers are a key enabling technology for fault management in multi-terminal high voltage direct current (HVDC) systems. DC fault isolation is challenging due to the high rate of rise of the fault current and the lack of natural current zero-crossings found in AC systems. In this paper we present a novel superconducting hybrid DC circuit breaker which utilizes the intrinsic characteristics of the superconductor material. The automatic quench of the superconductor coil as a result of a high fault current transfers the current from the mechanical switch to the semiconductor switch. The isolating mechanical switch is able therefore to open at low current and recover its dielectric capability rapidly. A low voltage DC circuit breaker prototype has been built using a multi-strand Magnesium Diboride (MgB2) coil, a vacuum interrupter and an IGBT module. This prototype successfully demonstrated interruption of 500 A DC within 4.4 ms. This paper includes the design of the superconducting hybrid breaker prototype and a detailed analysis of the experimental results. This superconducting hybrid DC circuit breaker has significant potential for scaling-up to high voltage and high current applications.  Index Terms-DC circuit breaker, hybrid circuit breaker, Magnesium Diboride, MgB2, mechanical switch, semiconductor switch, and superconducting coil.

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“…Figure A illustrates the basic structure of HSFCL . Current limiting part (CLP) parallel to the arrangement of a high temperature superconductor (HTS) element and CB consist the main parts of HSFCL.…”

Section: Hybrid Sfcl Conceptmentioning

confidence: 99%

“…Since SFCLs have the lower losses during normal conditions and operate immediately after the occurrence of the fault. Resistive type SFCL (RSFCL), saturated iron core SFCL (SISFCL), and hybrid SFCL (HSFCL) are the promising types of SFCL, and successful projects to develop them have been performed around the world . In this paper, it is focused on HSFCL.…”

Section: Introductionmentioning

confidence: 99%

Impact of fault resistance and fault distance on fault current reduction ratio of hybrid SFCL

Barzegar-Bafrooei

Foroud

2017

Int Trans Electr Energ Syst

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Summary Superconducting fault current limiters (SFCLs), as the novel power system devices, have attracted attentions in the last years. However, in order to achieve the maximum benefit from SFCLs, their interaction with power system should be comprehensively evaluated before equipping the power system with them. This paper investigates the effect of fault resistance and fault distance on the steady‐state fault current reduction ratio (FCRR) of hybrid SFCL. Based on the equivalent circuit model, analytical studies are presented to obtain the relation between 2 abovementioned factors and the FCRR of hybrid SFCL. Then, through the detailed simulation studies, the current limiting behavior of hybrid SFCL is evaluated when the value of fault resistance and the position of fault change in wide range. As a result, although the hybrid SFCL is able to reduce the fault current under different circumstances; however, FCRR significantly varies under outside the control changing circumstances. For far faults and faults with high fault resistance, the FCRR of hybrid SFCL is not as good as the other fault conditions. Hence, in the last section of the paper, the remedial actions to enhance the performance of hybrid SFCL during these conditions are proposed.

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Experimental Tests of a Resistive SFCL Integrated With a Vacuum Interrupter

Cited by 7 publications

References 12 publications

Superconducting Interface for a DC Circuit Breaker

Superconducting Interface for a DC Circuit Breaker

Design and Experimental Tests of a Superconducting Hybrid DC Circuit Breaker

Impact of fault resistance and fault distance on fault current reduction ratio of hybrid SFCL

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