Fault current limiters: a case study of protection and operational continuity for FPSOs

Souza, Marcelo F. de; Queiroz, A. T.; Sotelo, Guilherme Gonçalves; Monteiro, Paulo Roberto Duailibe; Fortes, Márcio Zamboti; Polasek, A.

doi:10.1007/s00202-021-01213-9

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…As seen in Figure 5, 5.7 milliseconds after the fault occurred, the R-SFCL resistance suddenly increased. For a 50 Hz power system, this means reacting within the first period (de Souza et al, 2021). However, it should be noted that the R-SFCL resistance and temperature continue at a high value after the fault.…”

Section: Simulation Resultsmentioning

confidence: 99%

Improved Recovery Time and Voltage Stability for Resistive Superconductor Fault Current Limiters

Yılmaz

Gençoğlu²

2022

JER is an international, peer-reviewed journal that publishes f

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Fault current levels occurring in power systems force the breaking capacities of the breakers. In the power system elements, the generator, transformer, cables, etc., are exposed to the dangerous effects of fault current until the breaker clears the fault. Various limiting methods have been developed to eliminate this adverse situation in recent years. One of these methods is Superconducting Fault Current Limiters (SFCL). With the discovery of High-Temperature Superconductors (HTS), SFCL's Resistive type has become more popular. Resistive SFCL (R-SFCL), based on the non-linear resistance property of superconducting materials, limits the fault within the first half period. However, it cannot provide such a fast response after the fault. The time required to regain the superconducting state after the fault is the recovery time. For R-SFCL manufacturers, recovery time is a design parameter that must be kept short. This study examines limiting performance, recovery time, and voltage stability with the dynamic model created using MATLAB/Simulink. With the shunt breaker method proposed in the study, the recovery time was shortened, and the voltage stability improved.

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Section: Simulation Resultsmentioning

confidence: 99%

Improved Recovery Time and Voltage Stability for Resistive Superconductor Fault Current Limiters

Yılmaz

Gençoğlu²

2022

JER is an international, peer-reviewed journal that publishes f

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“…This scenario is the maximum fault current case, which has a first asymmetric peak current (Ip) around to 6.0 kApeak and a symmetric current (Is) around to 2.5 kArms. The air-core reactor was specified to reduce the prospective fault current in 60%, and the values in Table I were calculated as indicated in [35]. were is obtained through a matrix solution of the equivalent circuit shown in Fig.…”

Section: Simulationmentioning

confidence: 99%

Novel Design of a Hybrid Superconducting Fault Current Limiter with Controlled Solid-State Device

Miyamoto

Queiroz

Dias

et al. 2021

J. Microw. Optoelectron. Electromagn. Appl.

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Fault current limiters are essential devices used to protect the power system and its equipment against high levels of fault current, which are growing up due to the increase of new power sources. This paper proposes a novel design of a Hybrid Superconducting Fault Current Limiter (Hybrid SFCL), which is composed basically by thyristors in series with a superconducting element. This branch is connected in parallel to an air-core reactor, which improves limitation and ensures the safe operation of the superconductor element. Another advantage of this topology is the use of the voltage drop in the superconductor as an input parameter to the controller. This voltage is used to detect the fault, which avoids the need for a current sensor and, consequently, reduces the manufacturing costs. In this work, the PSCAD/EMTDC software was employed to modeling the Hybrid SFCL and the 2G superconducting tape, which was modeled considering the thermal-electrical analysis. The results show that the fault current is efficiently limited, and the developed controller strategy has shown a relatively good performance. Furthermore, the proposed system guarantees a fast recovery time, in the order of 500 ms, which is a good advantage when compared to the conventional resistive SFCL.

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Multi-physics modelling and performance analysis of an air-core reactor in the framework of solid-state fault current limiters

Akin,

Arikan,

Kucukaydin

2024

Electric Power Systems Research

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Fault current limiters: a case study of protection and operational continuity for FPSOs

Cited by 5 publications

References 27 publications

Improved Recovery Time and Voltage Stability for Resistive Superconductor Fault Current Limiters

Improved Recovery Time and Voltage Stability for Resistive Superconductor Fault Current Limiters

Novel Design of a Hybrid Superconducting Fault Current Limiter with Controlled Solid-State Device

Multi-physics modelling and performance analysis of an air-core reactor in the framework of solid-state fault current limiters

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