Status of Superconducting Fault Current Limiter in Italy: Final Results From the In-Field Testing Activity and Design of the 9 kV/15.6 MVA Device

Angeli, G.; Bocchi, M.; Ascade, M.; Rossi, Valerio; Valzasina, A.; Ravetta, C.; Martini, L.

doi:10.1109/tasc.2016.2524534

Cited by 20 publications

(13 citation statements)

References 9 publications

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“…At present, the majority of SFCLs under field test are resistive SFCLs or inductive saturated iron-core SFCLs [12]. An in-grid implementation of a resistive 3.4MVA SFCL was conducted in Milan, Italy from 2012-14 with capacity upgraded in 2016 to 15.4MVA, which successfully demonstrated the limitation of a 3-phase short circuit current [15]. Successful implementations have also been seen in the UK where the permanent installation of two SFCLs in Birmingham as part of a £17m project allowed the connection of adjacent networks through new bus bar ties [16].…”

Section: B Fault Current Limitersmentioning

confidence: 99%

Overview and Assessment of Superconducting Technologies for Power Grid Applications

McGuckin

Burt

2018

2018 53rd International Universities Power Engineering Conference (UPEC)

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It is expected that superconducting technologies will play an important role in the future smart grid because their application brings a host of benefits, most notably a decrease power loss that allows for overload relief, the lowering of voltage levels, power quality enhancement and subsequent grid stability. The phenomenon of superconductivity brings these potential qualities to the grid in the form of a number of technologies analogous to the commonly accepted, conventional types in the form of cabling, fault current limiters, energy storage (ES), generators and transformers. This paper aims to provide an overview of these technologies and their current and potential applications.

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Section: B Fault Current Limitersmentioning

confidence: 99%

Overview and Assessment of Superconducting Technologies for Power Grid Applications

McGuckin

Burt

2018

2018 53rd International Universities Power Engineering Conference (UPEC)

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“…Due to their structural advantages, RSFCLs can be built very compact and lightweight, and the continuous drop of prices for 2G coated conductors keeps lowering their manufacturing costs [9,10]. There are many RSFCLs that have been built and tested, showing good performance at limiting short-circuit faults [11][12][13][14][15][16]. However, a few limitations still exist for this technology.…”

Section: Introductionmentioning

confidence: 99%

Active Quenching Technique for YBCO Tapes: Quench Acceleration and Protection

Zhang

Geng

Shen

et al. 2018

J Supercond Nov Magn

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The application of resistive-type superconducting fault current limiters (RSFCLs) in electrical networks is very attractive due to their relative compactness, light weight, and good performance. However, this technology still has drawbacks: asymmetrical quench, uncertain limiting velocity, passive action and incapability of enlarging capacity. Here, we present an active quenching technique which can potentially solve these problems. The quenching process is triggered using highfrequency (HF) AC fields, which are generated by two coupled copper coils attached on both sides of the YBCO sample. Our experiments show that this approach is effective in guaranteeing uniform quench and therefore is expected to be able to significantly extend the service life of the device. Moreover, the quench speed can be considerably increased by the HF field. We find that the performance of acceleration is positively correlated to the transport current, intensity and frequency of the AC field. In addition, a DC magnetic field is added around the sample holder simultaneously with the AC field, to study the field-angular-frequency dependence of the quench time t (B AC f AC B DC θ DC ). Experimental results prove that the DC magnetic field can cooperate with the HF AC field to accelerate quench, which means better performance can be produced with lower costs with the two fields acting together. In all, this technique showed outstanding performance regarding quench acceleration and tape protection. We believe the HF-assisted quenching technology has a promising future in current-limiting devices and hope our findings could be helpful for its potential applications.

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“…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%

“…2,3 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. [7][8][9][10][11][12][13] In this paper, it is focused on HSFCL. HSFCL, which circuit breaker is applied to its structure, can be used for both transmission and distribution (T&D) systems, and successful demonstration prototypes have been technically verified at 22.9, 24, and 110 kV.…”

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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Status of Superconducting Fault Current Limiter in Italy: Final Results From the In-Field Testing Activity and Design of the 9 kV/15.6 MVA Device

Cited by 20 publications

References 9 publications

Overview and Assessment of Superconducting Technologies for Power Grid Applications

Overview and Assessment of Superconducting Technologies for Power Grid Applications

Active Quenching Technique for YBCO Tapes: Quench Acceleration and Protection

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

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