Transient Modeling of Saturated Core Fault Current Limiters

Gunawardana, S. M.; Commins, Philip; Moscrop, Jeffrey W; Perera, Sarath

doi:10.1109/tpwrd.2016.2524647

Cited by 19 publications

(7 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different analytical approaches have been proposed for analysing the transient dynamic behaviour of the PCFCL [10][11][12][13]. They can be classified into inductance model [10,11], non-linear reluctance model [12,13], and flux linkage of AC coil versus line current model [8,14].…”

Section: Analytical Methods Of Pcfcl Performancementioning

confidence: 99%

“…A transient modelling of a single-phase, open-core PCFCL has been proposed through a non-linear reluctance model [12] and followed by a non-linear inductance model [13] based on the principle of electromagnetic duality, which considers the coupling effect between AC and DC coils. In this modelling approach, FE simulations and/or experiments are used to investigate all significant flux paths, which consequently accounts for the effect of leakage flux and the coupling effect between AC and DC coils.…”

Section: Non-linear Reluctance Modelmentioning

confidence: 99%

“…However, they can be considered as bulky and time-consuming, from several hours to days, even when simulating reduced scales of PCFCL in simple systems. Consequently, to overcome this severe restriction, several different analytical methods with fast dynamic simulations are applied to elucidate the general performance of PCFCL [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Transient dynamic analyses of presaturated core fault current limiters through flux and inductance versus current modelling

Eladawy

Tarhuni²,

Metwally

2019

IET Electric Power Applications

View full text Add to dashboard Cite

Here, the outcomes of experimental measurements and finite-element simulations are used to develop MATLAB/ Simulink models for evaluating the transient dynamic behaviour of the well-known dual-core presaturated core fault current limiter (PCFCL), either for single-or three-phase configurations. These models are based on calculating the total flux linkagecurrent characteristics of the AC coils at different levels of DC biasing current, taking into consideration the induced voltage across the DC coil terminals due to significant flux variation during the fault condition. On the other hand, the time-varying selfinductance and the self-inductance-current characteristics of the PCFCL are directly developed through Simulink modelling. It is worth mentioning that the self-inductance-current characteristic enables an important and quick design optimisation tool for PCFCL, where the dynamic inductance term significantly contributes to the total voltage drop across PCFCL in comparison to the static inductance. These total flux linkage and inductance versus current models can be directly used for modelling the dynamic transient behaviour of PCFCL when attached to any electrical transient programme used for analysing complex electrical power systems, with remarkable accuracy, quicker, and easier for various network scenarios and fault conditions.

show abstract

Section: Analytical Methods Of Pcfcl Performancementioning

confidence: 99%

Section: Non-linear Reluctance Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transient dynamic analyses of presaturated core fault current limiters through flux and inductance versus current modelling

Eladawy

Tarhuni²,

Metwally

2019

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…The leakage magnetic field around SCFCL can be analyzed by magnetic field decomposition method which improved the accuracy of original model [19]. Some scholars have also proposed simplified models: (1) Making use of the principle of electromagnetic duality to simplify the original electromagnetic model into an inductive model [20] (2) The original three-dimensional magnetic field analysis was simplified to a two-dimensional electric field analysis by decoupling the electrical and magnetic signals [21]. According to the established simulation model of SCFCL, the researchers analyzed the current limiting state of SCFCL under conditions of various short-circuit and different DC excitation current [22], which provided a reference of current-limiting capability for the follow-up studies [23].…”

Section: Introductionmentioning

confidence: 99%

Novel Topology of DC Energy-Released Circuit For Saturated-Core Fault Current Limiter

et al. 2019

View full text Add to dashboard Cite

The saturated-core fault current limiter (SCFCL) has been studied by several scholars in the past decades. However, these studies have mainly focused on the AC coils of the SCFCL, the DC excitation has seldom been mentioned. In this paper, the DC coil of SCFCL is studied as well as the influence of the novel structure of tightly-coupled SCFCL (TSCFCL) on the voltage of DC coil. A novel DC energyreleased circuit is proposed, which overcomes the shortcoming of traditional single topology whose energyreleased speed is limited by withstanding voltage of IGBT. In order to select a suitable structure of air gap for fault current limiter, the effects of different structures on the saturation of the core are studied. A novel simulation method is presented in this paper which can overcome the drawback of traditional finite element analysis cannot simulate the switching characteristics of IGBT under high frequency. Finally, a prototype is manufactured to verify the theory of this paper. INDEX TERMS Saturated-core fault current limiter, DC energy-released circuit, air-gap, finite element analysis, magnetic field division.

show abstract

“…There are several types of FCLs [6][7][8]. The saturated-core fault-current limiter (SCFCL) has attracted worldwide attention from researchers and companies and has the advantages of fault self-detection, fast action and a high withstanding voltage [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Performance Investigation and Optimization of a Novel Hybrid Saturated-Core Fault-Current Limiter Considering the Leakage Effect

Wei

Chen

Liu³

et al. 2018

Energies

View full text Add to dashboard Cite

Abstract:To reduce the requirement of DC-biasing capacity and improve the biasing ability of a permanent magnet (PM), a novel hybrid saturated-core fault-current limiter (HSCFCL) is proposed in this paper. Compared with traditional saturated-core fault-current limiter (SCFCL), the HSCFCL has the advantages of small size, low DC-biasing capacity, a high biasing ability of the PM and excellent limiting performance. Firstly, the principle and the magnetic circuit model of the HSCFCL are introduced. Then, the improvement of DC-biasing capacity with a PM is analyzed. In addition, the influence of the leakage-flux effect on the biasing ability of the PM is presented in detail, and a small-section optimal structure is proposed to improve the biasing ability of the PM. Finally, to validate the principle and performance of the HSCFCL, various electromagnetic simulations, optimization studies and experiments are carried out. The simulation and experimental results demonstrate the effectiveness of the proposed method.

show abstract

Transient Modeling of Saturated Core Fault Current Limiters

Cited by 19 publications

References 9 publications

Transient dynamic analyses of presaturated core fault current limiters through flux and inductance versus current modelling

Transient dynamic analyses of presaturated core fault current limiters through flux and inductance versus current modelling

Novel Topology of DC Energy-Released Circuit For Saturated-Core Fault Current Limiter

Performance Investigation and Optimization of a Novel Hybrid Saturated-Core Fault-Current Limiter Considering the Leakage Effect

Contact Info

Product

Resources

About