Superconducting fault current limiters: a new tool for the “grid of the future”

Hobl, A.; Krämer, S.; Elschner, S.; Jänke, Christian; Böck, J.; Schramm, J.

doi:10.1049/cp.2012.0852

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…When the current rises too much (due to a short circuit) the SFCL loses its superconductivity and becomes a normal conductor [12]. SFCLs are already used in certain networks to limit short circuit currents [13].…”

Section: Sfclmentioning

confidence: 99%

Comparison of different methods to limit short circuit currents in DC traction networks

Breugelmans¹,

Leterme

Hertem

et al. 2014

12th IET International Conference on Developments in Power System Protection (DPSP 2014)

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In this paper, different methods to limit short circuit currents in DC traction networks are compared. Typically, DC traction networks are supplied by the AC grid by means of an uncontrolled diode bridge rectifier. In case of a low-impedance short circuit fault between catenary and rail, the fault current reaches a large value. For densely meshed networks the mechanical circuit breakers can become too slow. The methods studied are applying fault current limiters, faster interruption of fault currents and adding controlled rectifiers. The fault current limiters considered are a reactor and a superconducting fault current limiter (SFCL). For faster interruption of fault currents, a hybrid circuit breaker is investigated. Simulations show that the short circuit current can be limited considerably by installing limitation devices after the rectifiers, when the short circuit occurs close to a substation. Fast interruption of the fault or application of the SFCL results in the strongest reduction of the short circuit current.

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Section: Sfclmentioning

confidence: 99%

Comparison of different methods to limit short circuit currents in DC traction networks

Breugelmans¹,

Leterme

Hertem

et al. 2014

12th IET International Conference on Developments in Power System Protection (DPSP 2014)

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“…It is, thus, critical to effectively limit short-circuit fault currents in power systems. Considering the limitations of high-capacity circuit breaker, a superconducting current limiter is a good alternative [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Progress on Second-Generation High-Temperature Superconductor Tape Targeting Resistive Fault Current Limiter Application

Zhu

Chen²,

Jin

2022

Electronics

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The resistive superconducting fault current limiter is well known for its simple structure and outstanding current-limiting effect, and it is broadly applied in power grid systems. The second-generation high-temperature superconductor (HTS) tape, of higher structural strength and greater room-temperature resistance, is well suited for application in resistive superconducting fault current limiters. The quenching caused by overcurrent in the HTS tape is a complexed coupling effect of several physical factors. The tape structure and properties directly impact the ultimate HTS tape’s quench performance. In this study, various SS316-laminated HTS tapes, of different critical currents, room-temperature resistances, and masses, were prepared. The pulse impact parameters of the various tape samples were measured using the RLC high-current impact test platform. By analyzing the resultant data, a quantitative assessment methodology to measure a tape’s tolerance toward impact was developed. The dependence of the HTS tape’s tolerance toward impact on its critical current, room-temperature resistance, and mass was studied. This provides numerical guidance on HTS material selection for resistive superconducting fault current limiters.

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“…In modern electrical networks, a large variety of electrical loads and generators use protective equipment. Fault current limiter (FCL) is a device that has very low impedance during the normal operation condition, while it shows considerable impedance during the fault state [1,2]. So far, a variety of FCLs have been introduced such as superconductive FCL [3,4], resonance-type FCL [5,6], transformer-based FCL [7,8], saturated core FCL [9,10] and permanent magnet-based FCL [11,12].…”

Section: Introductionmentioning

confidence: 99%

Distribution system protection by coordinated fault current limiters

Heidary

Radmanesh

Naghibi

et al. 2020

IET Energy Systems Integration

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The protection of distribution networks is one of the most substantial issues, which needs special attention. Using appropriate protective equipment enhances the safety of the power distribution network during the fault conditions. Fault current limiter (FCL) is a kind of modern preserving system being used for protecting power networks and equipment. One of the main concerns of power networks is the voltage restoration of buses during faulty conditions. In this study, a group of coordinated DC reactor type faults current limiters are designed and tested to protect the network and restore its buses voltage within the fault period. To coordinate FCLs and measurement devices during the fault sequences, a wireless communication system and decision-making computer are used. The proposed FCLs coordination strategy is modelled and simulated in MATLAB platform and the results are validated by the developed laboratory test setup.

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Superconducting fault current limiters: a new tool for the “grid of the future”

Cited by 12 publications

References 5 publications

Comparison of different methods to limit short circuit currents in DC traction networks

Comparison of different methods to limit short circuit currents in DC traction networks

Progress on Second-Generation High-Temperature Superconductor Tape Targeting Resistive Fault Current Limiter Application

Distribution system protection by coordinated fault current limiters

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