First commercial medium voltage superconducting fault-current limiters: production, test and installation

Dommerque, Robert Karl; Krämer, S.; Hobl, A.; Böhm, René; Bludau, M.; Böck, J.; Klaus, D.W.; Piereder, Herbert; Wilson, A.; Krüger, Thomas; Pfeiffer, Günter; Pfeiffer, Klaus; Elschner, S.

doi:10.1088/0953-2048/23/3/034020

Cited by 77 publications

(52 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the first time in HTS systems for electrical grids several projects have been realized without any public funding since 2009 (Fig. 10) [39]. This underlines the great interest of the utilities in this technology.…”

Section: Electrical Grid Safetymentioning

confidence: 99%

Energy and superconductors – applications of high-temperature-superconductors

Bäcker¹

2011

Zeitschrift Für Kristallographie

View full text Add to dashboard Cite

Abstract. More than 20 years after the discovery of hightemperature-superconductors (HTS) first applications in the energy sector are now becoming commercially attractive. Whereas still high end applications of low-temperaturesuperconductors (LTS) like NMR or MRI systems are the major drivers for industrial production, HTS based systems promise broader use in energy technology over the next few years. Due to their superior performance HTS materials enable more compact and lighter electric devices as well as an unbeatable improvement in energy efficiency. Moreover new devices like fault current limiters (FCL) are under development and field tests exhibit so far unknown properties for future electric grid design. Prototypes and first commercial systems like cables, generators, motors, FCL were successfully commissioned in the last few years. Based on these test results HTS systems will contribute significantly to the future key challenges in energy technology by reducing CO 2 -emmission due to their outstanding efficiency and to the security of energy supply.

show abstract

Section: Electrical Grid Safetymentioning

confidence: 99%

Energy and superconductors – applications of high-temperature-superconductors

Bäcker¹

2011

Zeitschrift Für Kristallographie

View full text Add to dashboard Cite

show abstract

“…In 2003, the first field test of a SFCL for medium-voltagelevel applications named CURL10 was built with melt cast processed Bi2212 tubes cut into bifilar coils, showing virtually no degradation of the material after two years test [7]. Using the same bulk material, but cut into monofilar coils, the first commercial medium voltage SFCLs were released in 2009 by Nexans SuperConductors GmbH for two customers [8]: Applied Superconductor Limited in UK, and Vattenfall in Germany. Most recently, a SFCL with a rated power of 4.4 MVA (11 kV,0.4 kA) was installed in the UK earlier 2012, and it has been operating since middle 2013 [9].…”

Section: Practical Implementation Of Sfcl: Field Test Status and mentioning

confidence: 99%

Resistive-Type Superconducting Fault Current Limiters: Concepts, Materials, and Numerical Modeling

Ruiz

Zhang

Coombs

2015

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Abstract-In recent years, major industrialized countries have began to be concerned about the need for developing strategies on the integration and protection of the growing power capacity of renewable source energies, attracting back their interest on the development and understanding of superconducting fault current limiters (SFCL). The reasons for this are simple: a SFCL may offer a rapid, reliable and effective current limitation, with zero impedance during normal operation, and an automatic recovery after the fault. Nowadays, most of the R&D projects have turned towards to the study of the resistive type SFCL due to their potential to be small, and the likely decrease in price of 2G coated conductors. Thus, in this paper we provide an updated review on the state of the art of resistive type SFCL, emphasizing on the different approaches for the numerical modelling of their local physical properties, as well as on the already tested experimental concepts. Comparison between the properties and characteristics of different resistive-type SFCL using different superconducting materials is presented.

show abstract

“…With respect to transformer inrush and protection, each generator is capable of supplying approximately 40kA (peak) for faults with negligible resistance; an overcurrent protection scheme can therefore readily differentiate between fault current and transformer inrush, even if only a single 2.1MW generator is in operation. with transformer inrush for the vessel studied in this paper, I c must always be selected with careful reference to transformer inrush currents [22]. For larger transformers, inrush could be significant and might impinge on fault current levels (and therefore on SFCL operation thresholds), particularly in situations where prospective faults levels are reduced due to all generation not being in service.…”

Section: Non-fault Transients and Their Potential To Cause Sfcl Mal-omentioning

confidence: 99%

“…This is important because it will affect the length of the recovery time of a resistive SFCL [15]. Note that energy dissipation may be substantially lower if an impedance is placed in parallel with the SFCL [5] and external to the cryogenic environment, but this will also affect the current limitation properties [22]. It has been shown how, for location A, a relatively large SFCL resistance can reduce both the severity of electrical disturbances and the amount of energy dissipated in the SFCL during faults.…”

Section: Non-fault Transients and Their Potential To Cause Sfcl Mal-omentioning

confidence: 99%

Superconducting fault current limiter application in a power-dense marine electrical system

Blair

Booth

Elders

et al. 2011

IET Electr. Syst. Transp.

View full text Add to dashboard Cite

This version is available at https://strathprints.strath.ac.uk/40245/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output.This paper is a preprint of a paper accepted by IET Electrical Systems in Transportation and is subject to Institution of Engineering and Technology Copyright. When the final version is published, the copy of record will be available at IET Digital Library. AbstractPower-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents. This is very attractive in a marine vessel in terms of the benefits arising from reductions in switchgear rating (and consequently size, weight and cost) and damage at the point of fault. However, there are a number of issues that must be considered prior to installation of any SFCL device(s), particularly in the context of marine applications. Accordingly, this paper analyses several such issues, including: location and resistance sizing of SFCLs; the potential effects of an SFCL on system voltage, power and frequency; and practical application issues such as the potential impact of transients such as transformer inrush. Simulations based upon an actual vessel are used to illustrate discussions and support assertions. It is shown that SFCLs, even with relatively small impedances, are highly effective at reducing prospective fault currents; the impact that higher resistance values has on fault current reduction and maintaining the system voltage for 1 Dr Nand Singh is now with Mott MacDonald Ltd., Croydon, CR0 2EE, U.K 2 other non-faulted elements of the system is also presented and it is shown that higher resistance values are desirable in many cases. It is demonstrated that the exact nature of the SFCL application will depend significantly on the vessel's electrical topology, the fault current contributio...

show abstract

First commercial medium voltage superconducting fault-current limiters: production, test and installation

Cited by 77 publications

References 10 publications

Energy and superconductors – applications of high-temperature-superconductors

Energy and superconductors – applications of high-temperature-superconductors

Resistive-Type Superconducting Fault Current Limiters: Concepts, Materials, and Numerical Modeling

Superconducting fault current limiter application in a power-dense marine electrical system

Contact Info

Product

Resources

About