Design and construction of a magnetic fault current limiter

Rasolonjanahary, J.-L.; Sturgess, J.P.; Chong, E.F.H.; Baker, A.E.; Sasse, C.

doi:10.1049/cp:20060195

Cited by 11 publications

(6 citation statements)

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“…A slightly different approach using only one permanent magnet was presented by Iwdiara et al (1999). Calman et al (2001) MFCL employing a permanent magnet having a large square hysteresis was presented in a previous study (Rasolonjanahary et al, 2005). During the first peak of a fault, the large fault current cycles around this large hysteresis loop, thus dissipating large amount of energy, which would otherwise pass into the fault.…”

Section: Introductionmentioning

confidence: 94%

A magnetic-core based fault current limiter for utility applications

Abeygunawardane

Kumara

Ekanayake

et al. 2011

J. Natn. Sci. Foundation Sri Lanka

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Abstract:A magnetic core fault current limiter (MFCL) saturated by a dc biasing coil was designed and implemented, both experimentally and in PSCAD/EMTDC simulation package. The operation of the device under normal operating conditions and faults was then studied. A case study was carried out using simulation to demonstrate the application of the proposed MFCL. The benefits of using a grid-connected single-phase rectifier to bias the dc coil of the MFCL were investigated through simulation studies. The simulation results show improvements in limiting the fault current and minimizing the voltage sag on healthy busbars during a fault. It was also found that the highest improvements are achieved when the rectifier is connected to the downstream grid.

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Section: Introductionmentioning

confidence: 94%

A magnetic-core based fault current limiter for utility applications

Abeygunawardane

Kumara

Ekanayake

et al. 2011

J. Natn. Sci. Foundation Sri Lanka

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“…Many kinds of FCLs have been developed over the past several decades [16]. These can be classified into three main groups depending on their fundamental technology: 1) superconducting FCLs [5,6], [17], magnetic FCLs [18], and solid-state FCLs [19]. Alternatively, classification by impedance is possible, in which case the main classes are inductive FCLs and resistive FCLs.…”

Section: Inductive Fault Current Limitermentioning

confidence: 99%

Application of Firefly Algorithm for Optimal Directional Overcurrent Relays Coordination in the Presence of IFCL

Benabid¹,

Zellagui²,

Chaghi³

et al. 2014

IJISA

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-This paper considers the impact of the Inductive Fault Current Limiter (IFCL) on d irect ional overcurrent relays coordination. The coordination problem is formulated as a non-linear constrained mono-objective optimization problem. The objective function of this optimizat ion problem is the minimizat ion of the operation time of the associated relays in the systems, and the decision variab les are: the time dial setting (TDS) and the pickup current setting (I P ) of each relay. To solve this co mplex non linear optimization problem, a variant of optimization algorith ms named Firefly A lgorith m (FA) is used. The proposed method is tested on 8-bus power transmission systems test systems considering the influences of current relay under three-phases short-circuit with and without IFCL for d ifferent locality. The results show the effectiveness of the solution.

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“…Some examples of non-superconducting schemes are arc-type current limiting, 3 commutating fault currents to limiting elements via high-speed switches, 4 and utilization of saturable reactors. 5,6 On the other hand, this study proposes a method to limit fault currents in a transformer's secondary circuit by switching magnetic circuits in transformer. 7 As compared to schemes based on switching in electrical circuits, the proposed method does not involve arcs; this promises labor saving in maintenance related to wear, poor contacts, etc., as well as a long cycle life.…”

Section: Introductionmentioning

confidence: 99%

Fault current limiter principle by switching magnetic circuit

Tsukima,

Hatauchi

2024

Electrical Engineering Japan

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Several types of fault current limiters have been studied so far, including superconductor based one or nonsuperconductor based one. However, it is difficult to satisfy all requirements for cost, maintainability, and current limiting performance. This study proposes another type of fault current limiter, variable transformer based one. It is supposed to be less expensive and easier to be maintained since it is based on the conventional transformer, and to be expected better current limiting performance since the magnetic circuit of the transformer is drastically changed. The magnetic circuit of the transformer is switched to be opened and to produce another one by shifting a portion of its iron core mechanically, allowing the primary and secondary electric circuit to be magnetically isolated. In that way, the electromotive force of the secondary winding could be reduced so that the secondary current could be limited. The prototype based on this concept was designed and built up, and its stational performance has been investigated. As a result, it was confirmed that the prototype shows good current limiting performances identical to the results of the previous FE analysis. Furthermore, the prototype was connected to the operating mechanism to investigate the transient performances, and as a result, satisfying current limiting performances are confirmed

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Design and construction of a magnetic fault current limiter

Cited by 11 publications

References 0 publications

A magnetic-core based fault current limiter for utility applications

A magnetic-core based fault current limiter for utility applications

Application of Firefly Algorithm for Optimal Directional Overcurrent Relays Coordination in the Presence of IFCL

Fault current limiter principle by switching magnetic circuit

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