A method of obtaining of electric arc model parameters for SF&lt;inf&gt;6&lt;/inf&gt; power circuit breakers

Maximov, Serguei; Venegas, V.; Guardado, J.L.

doi:10.1109/eurcon.2009.5167672

Cited by 5 publications

(15 citation statements)

References 6 publications

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“…Such simplified models, however, are of limited applicability, so they are modified in order to better reflect the real characteristics of an arc. Among the mathematical models of the phenomenon, the following major types can be distinguished: constant parameters models, variable parameters models, linear models and nonlinear ones [2][3][4][5]. Commonly recognised as reliable [3] are the results of investigations of current interruption in a circuit conducted in KEMA Laboratories in the Netherlands, using a SF 6 circuit breaker with the parameters 245kV/50kA/50Hz.…”

Section: Selected Physical Properties Of Electric Arcs In Circuit Brementioning

confidence: 99%

“…Then, the voltage drops abruptly from about 1600 V to about 1200 V. Subsequently, despite further decrease in current, the voltage increases steeply up to about 2400 V, and in the current range from about 100 A to zero, it drops abruptly to zero as well. A number of tests indicated that the value of the critical current varies in the narrow range of i cr ≈ 1-1.11 kA [4].…”

Section: Selected Physical Properties Of Electric Arcs In Circuit Brementioning

confidence: 99%

“…In common use for describing the interaction between an arc and the power grid are black box models. Typically, they are modifications of the simple Mayr and Cassie models [4,5]. Due to the fact that these simple models are based on simplifying assumptions, they are applicable to low and high current ranges, respectively.…”

Section: Mathematical Models Of An Arc In a Circuit Breakermentioning

confidence: 99%

“…This ability can be assessed by means of a number of tests carried out in a laboratory. On the basis of such tests, a number of arc models have been proposed [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Selected Physical Properties Of Electric Arcs In Circuit Brementioning

confidence: 99%

Section: Selected Physical Properties Of Electric Arcs In Circuit Brementioning

confidence: 99%

Section: Mathematical Models Of An Arc In a Circuit Breakermentioning

confidence: 99%

“…This ability can be assessed by means of a number of tests carried out in a laboratory. On the basis of such tests, a number of arc models have been proposed [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modified arc models in a SF6 power circuit breaker

Sawicki¹

2018

ELECTROTECHNICAL REVIEW

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“…A physical approach to create the electric arc as presented in this paper may be beneficial in these simulations. The model presented in this paper can also be coupled to an external electric network (see Delmont and Torrilhon 2012b) and used to advance black-box Cassie-Mayr models, as in Tseng et al (1997) and Maximov et al (2009). First convective simulations have also been published (see Delmont and Torrilhon 2012a).…”

Section: Introductionmentioning

confidence: 99%

Modeling of electric arcs: A study of the non-convective case with strong coupling

2013

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In this paper, we investigate a mathematical model for electric arcs. The model is based on the equations of magnetohydrodynamics, where the flow and heat transfer in a plasma is coupled to electrodynamics. Our approach neglects convection and yields a reaction–diffusion model that includes only the core phenomena of electric arcs: Ohmic heating and nonlinear electric conductivity. The equations exhibit interesting mathematical properties like non-unique steady states and instabilities that can be linked to electric arc properties. Additionally, a 3D axisymmetric simulation of the creation and extinction of an electric arc is presented based on a strongly coupled numerical algorithm for the non-convective model. The approach is especially suited for high-current arcs where strong coupling becomes necessary.

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Circuit-Based Mathematical Model of an Arc Heater for Control System Development

Brown¹,

Mahajan

2021

IEEE Access

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A novel circuit-based mathematical model of an electric arc heater is presented so that an arc heater system can be modeled, and a control algorithm can be developed and simulated. Due to inherent arc nonlinearities and complexities, as well as low amounts of arc heater data, the new model was developed by establishing a holistic approach to implementing the arc as a circuit element, where common circuit analysis and control techniques can be easily applied. The response of the arc heater system was examined at various voltage and current operating points that represent different regions of operation within the arc's characteristic curve. The simulated data of the arc heater model were compared to the arc characteristics of the experimental data. The experimental data set used for comparison was collected at the Hypersonic Materials Environmental Test System (HyMETS) arc-jet wind tunnel by the NASA Langley Research Center in Hampton, Virginia. Data analysis and simulations were executed utilizing MATLAB and Simulink to compare the newly developed model with the experimental data. The simulations demonstrate a strong correlation between these datasets, indicating the model's ability to accurately replicate the physical system, while also allowing initial control system development to begin with simplistic proportional-integral-derivative (PID) control of the arc heater.

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A method of obtaining of electric arc model parameters for SF<inf>6</inf> power circuit breakers

Cited by 5 publications

References 6 publications

Modified arc models in a SF6 power circuit breaker

Modified arc models in a SF6 power circuit breaker

Modeling of electric arcs: A study of the non-convective case with strong coupling

Circuit-Based Mathematical Model of an Arc Heater for Control System Development

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