Fault Current Limiting (FCL) Devices and Techniques

Prigmore, Jay; Uzelac, Nenad

doi:10.1007/978-3-319-72538-3_13

Cited by 5 publications

(5 citation statements)

References 2 publications

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“…Now, the total inductance observed by the fault current on the stator side is consequently increased to L s + L FCL . Now, from (14), the induced EMF for symmetrical fault can be formulated as…”

Section: M-stfclmentioning

confidence: 99%

“…However, relatively cost of DVR increases in order to protect large load, and also the output of the inverter has a high harmonic content, hence, a filter at the output is needed to achieve the sinusoidal waveform. Many types of fault current limiters (FCLs) [13][14][15][16] are considered; however, these have some constraints, such as resistive type FCL shows nonuniform heating of superconductor material which damages the high-temperature superconductor material due to excessive heat [17]. The inductive type has a size problem which is almost four times that of purely resistive FCL.…”

Section: Introductionmentioning

confidence: 99%

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Modified switch type fault current limiter for low‐voltage ride‐through enhancement and reactive power support of DFIG‐WT under grid faults

Asghar

Rehman

Ullah

et al. 2020

IET Renewable Power Generation

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The sudden voltage drop may upsurge the current level and trigger the self-protective system to disconnect the wind turbines that are detrimental for grid constancy. A novel structure of a modified switch type fault current limiter (M-STFCL) is proposed that protects the doubly-fed induction generator wind turbine (DFIG-WT) during the symmetrical and asymmetrical grid faults. The M-STFCL is cost-effective and requires little maintenance during operation. The proposed system maintains the rotor current and DC-link voltage below the maximum acceptable limits, thus, fortify the back-back converters. The M-STFCL is tested with both the sliding-mode control (SMC) and proportional-integral (PI) controller and their results are compared. From the simulation results, it is obvious that SMC has edged over the PI controller and demonstrated superior control over the critical parameters. The performance of M-STFCL is also compared with the conventional switch type fault current limiter and the analytical results clearly validate the significance of the proposed system.

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Section: M-stfclmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modified switch type fault current limiter for low‐voltage ride‐through enhancement and reactive power support of DFIG‐WT under grid faults

Asghar

Rehman

Ullah

et al. 2020

IET Renewable Power Generation

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“…Fault current limiters (FCLs) have been widely introduced in power systems as the most promising technology to effectively and efficiently suppress fault currents to satisfactory levels [10]. The main goal of FCLs is to lower the fault current to a level that the circuit breaker can conveniently and safely clear [11]. The utilization of FCLs in power system has not only been to suppress fault currents but has also been to enable voltage ride-through capabilities of wind farm doubly-fed induction generators [12], [13], enhance transient stability [14], eliminate voltage sags [15], improve power quality, limit inrush current in transformers [14] and increase the power transfer capability of the power system [16].…”

Section: Introductionmentioning

confidence: 99%

A modified bridge-type nonsuperconducting fault current limiter for distribution network application

Fokui

Saulo

Ngoo

2021

IJPEDS

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The electrical distribution network is undergoing tremendous modifications with the introduction of distributed generation technologies which have led to an increase in fault current levels in the distribution network. Fault current limiters have been developed as a promising technology to limit fault current levels in power systems. Though, quite a number of fault current limiters have been developed; the most common are the superconducting fault current limiters, solid-state fault current limiters, and saturated core fault current limiters. These fault current limiters present potential fault current limiting solutions in power systems. Nevertheless, they encounter various challenges hindering their deployment and commercialization. This research aimed at designing a bridge-type nonsuperconducting fault current limiter with a novel topology for distribution network applications. The proposed bridge-type nonsuperconducting fault current limiter was designed and simulated using PSCAD/EMTDC. Simulation results showed the effectiveness of the proposed design in fault current limiting, voltage sag compensation during fault conditions, and its ability not to affect the load voltage and current during normal conditions as well as in suppressing the source powers during fault conditions. Simulation results also showed very minimal power loss by the fault current limiter during normal conditions.

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“…Using of the superconducting fault current limiters (SFCL) in networks allows drastic decrease of fault currents, enhancing the reliability of the power system and reduce the wear of electrical equipment [1][2][3][4][5]. Currently, efforts aimed at creating SFCL are underway around the world [6][7][8][9][10], with several dozen systems having been developed and currently undergoing trials [11][12][13][14][15][16][17]. The operation of resistive-type SFCL is based on the physical properties of a superconductor: if the current is less than a critical value, the device has zero resistance and has no impact on the operation of the circuit Error!…”

Section: Introductionmentioning

confidence: 99%

Modeling the Heating in a High Temperature Superconducting Current Carrying Element in Fault Current Limiters

Maklalov,

Scherbakov*,

Gorbunova

2019

IJITEE

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Mathematical model was developed for modeling the increase temperature in high temperature superconducting (HTS) current carrying element in superconducting fault current limiters (SFCL). The variation in the heating up of HTS element along its length is a result primarily of the variation in its resistance that has to do with the manufacturing process employed to make it.The model was developed and mathematical modeling of the process was carried out in the Comsol MultiPhysics software package. Element that was tested was a 12 mm wide stack of three stainless steel tapes and three HTS soldered to each other. In order to get more precise parameters for the models the cross-sectional thermal conductivity was measured for the stacks of HTS of two different types. The estimates obtained using the model were very close to experimental data. The impact was also studied of the spread of the electrical resistance of HTS on how fast the current carrying element made from it heated up.

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Fault Current Limiting (FCL) Devices and Techniques

Cited by 5 publications

References 2 publications

Modified switch type fault current limiter for low‐voltage ride‐through enhancement and reactive power support of DFIG‐WT under grid faults

Modified switch type fault current limiter for low‐voltage ride‐through enhancement and reactive power support of DFIG‐WT under grid faults

A modified bridge-type nonsuperconducting fault current limiter for distribution network application

Modeling the Heating in a High Temperature Superconducting Current Carrying Element in Fault Current Limiters

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