Electrical Arc Model Based on Physical Parameters and Power Calculation

Khakpour, Alireza; Franke, Steffen; Uhrlandt, Dirk; Gorchakov, Sergey; Methling, Ralf

doi:10.1109/tps.2015.2450359

Cited by 45 publications

(18 citation statements)

References 10 publications

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“…When series arc faults occur, U S will remain constant because of the control of the DC-DC converter feedback network. A comparison of (15) and (17) shows that the amplitude of u oc,arc will be considerably higher than that of u oc because of r being in series in the line. Furthermore, the chaos of u oc,arc will increase because of the dynamic change of r.…”

Section: Analysis Of the Effects Of Arc V-i Characteristics On Amentioning

confidence: 96%

“…An arc fault can be considered as a dynamic nonlinear resistance element in the circuit network. Its resistance is related to the arc's temperature, the supply voltage magnitude, electrode material, the surrounding gas composition, and the arc gap's spacing [15]. The abovementioned parameters are not always constant while the arc is burning, e.g., an arc will produce high temperature that causes the electrode to volatilize, which then affects the arc length.…”

Section: Introductionmentioning

confidence: 99%

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A DC Series Arc Fault Detection Method Using Line Current and Supply Voltage

et al. 2020

IEEE Access

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In recent years, DC fault arc detection has been an electrical engineering research hotspot. At present, most proposed detection methods do not analyze the effects of fault arc electrical characteristics on both line current and supply voltage. Therefore, this study extensively analyzes variations of the line current and supply voltage because of DC arc faults based on the volt-ampere characteristics of DC arc faults. Then, a DC series arc fault detection method is proposed that comprehensively uses information on line current and supply voltage. An experimental platform for DC fault arc generation and detection was established using a DC-DC converter and a photovoltaic power supply as DC power supplies, and the proposed method was confirmed by experiments using this platform. Experimental results demonstrate that the proposed method can effectively distinguish arc faults and has the characteristics of clear physical meaning while maintaining a low amount of calculation. INDEX TERMS DC series arc, volt-ampere characteristic, electrical fault detection, current, voltage, chaotic characteristics, drop rate, change rate.

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Section: Analysis Of the Effects Of Arc V-i Characteristics On Amentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

A DC Series Arc Fault Detection Method Using Line Current and Supply Voltage

et al. 2020

IEEE Access

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“…Simulation methods are often employed in electrical engineering for designing power devices and networks. Thanks to them it is possible to analyse many constructional variants of devices and structures of networks in a fast and cost-effective way, and to select optimal solutions [1,7]. The data necessary for the calculations and for assessing the ultimate effectiveness of a device come from experiments.…”

Section: Simulations Of Connecting Processes In a Circuit With Modifimentioning

confidence: 99%

Modified arc models in a SF6 power circuit breaker

Sawicki¹

2018

ELECTROTECHNICAL REVIEW

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Selected operating properties of high voltage power switches that use SF6 as extinguishing medium have been described. Selected physical properties of switching arc that occurs in those devices have been presented, with special focus on results of experimental research conducted in KEMA laboratory in Netherlands. Important flaws of mathematical models of switching arc described in literature have been indicated, despite they include variation of dissipation power, as well as step decrease of voltage during linear decrease of current. Method for obtaining modified Mayr and hybrid models with aforementioned properties have been described. They differ from other known models by consistent introduction of preliminary assumptions and simpler form. Properties of these models have been researched using computer simulations. Their usefulness in engineering work have been demonstrated. Streszczenie. W artykule opisano wybrane właściwości eksploatacyjne wyłączników wysokonapięciowych mocy, które używają SF6 jako medium gaszeniowego. Zaprezentowano wybrane właściwości fizyczne łuku łączeniowego, który występuje w tych aparatach. Szczególną uwagę zwrócono na wyniki badań eksperymentalnych przeprowadzonych w laboratorium KEMA w Holandii. Wskazano na istotne mankamenty modeli matematycznych łuku łączeniowego opisywanych w literaturze, pomimo że uwzględniają one zmienność mocy rozpraszanej, a także skokowy spadek napięcia podczas liniowego zmniejszania prądu. Opisano metodę otrzymania zmodyfikowanych modeli Mayra i hybrydowego o wspomnianych wcześniej właściwościach. Od innych znanych modeli różnią się one konsekwentnym wprowadzaniem założeń wstępnych i prostszą postacią. Zbadano właściwości tych modeli za pomocą symulacji komputerowych. Wykazano przydatność tych modeli w pracach inżynierskich. (Zmodyfikowane modele łuku w wyłączniku mocy z SF 6).

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“…Due to the limitation of laboratory facilities, arc mechanism cannot be obtained by experimental means. Therefore, for purpose of revealing the complex physical process inside the arc, mathematical methods have been developed to describe the relationships among arc variables [7–9]. Cybernetic arc model is one of the most frequently used mathematical models for analysing arc grounding fault in non‐solidly earthed networks.…”

Section: Dynamic Arc Modelmentioning

confidence: 99%