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Численное моделирование стримерного разряда в SF6

выпускная квалификационная работа бакалавра

Численное моделирование стримерного разряда в SF6

Abstract

Целью проекта является разработка модели для анализа формирования и распространения стримерных разрядов в газе SF6 и сбора необходимых свойств газа, которые могут быть использованы в исследовательских работах для создания альтернативной газовой смеси вместо SF6. SF6 широко используется в высоковольтном оборудовании в качестве изолирующего газа и для гашения дуги благодаря своим замечательным физическим свойствам. Тем не менее, из-за его сильного парникового эффекта растет интерес к поиску альтернатив SF6. Осесимметричная модель "точка-плоскость" для моделирования стримерных разрядов в SF6 была построена с использованием Comsol Multiphysics с расстоянием между электродами 5 мм. Используя эту модель и плазменный модуль, встроенный в Comsol Multiphysics, можно получить влияние напряжения на формирование и скорость стримера, а также перенос заряда с использованием уравнений взаимодействия.

The goal of the project is to come up with a predictive model to analyze the formation and propagation of streamer discharges in SF6 gas and collect necessary properties of the gas that can be used in research works to come up with alternative gas mixed in place of SF6. SF6 is widely used in high voltage equipment as an insulation gas and for arc quenching because of its remarkable physical properties. Nevertheless, due to its strong greenhouse effect the is a raising interest to find alternatives to SF6. A point to plane axisymmetric model for simulation of streamer discharges in SF6 was built using Comsol Multiphysics with distance between electrodes being 5mm. Using this model and plasma module in built in Comsol Multiphysics the influence of voltage on streamer formation and velocity, as well as charge transportation using the impact equations can be obtained.

Keywords

перенос заряда, влияние напряжения, streamer, influence of voltage, стример, electrode, численная модель, numerical model, электрод, charge transport

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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