Simulation of Multi-Branching Streamer Discharge Considering Random Fluctuations of Carrier Density in Natural Ester under Pulsed Voltage

In this article, a multi-branching streamer discharge model considering random fluctuations of carrier density is established based on the electrohydrodynamic discharge model, and the multi-branching streamer discharge under impulse voltage is carried out by finite element method. The morphologies o...

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Published in:IEEE transactions on dielectrics and electrical insulation 2023-11, p.1-1
Main Authors: Chen, G., Xin, X.J., Luo, L., Song, P.C., Zuo, H.C.
Format: Article
Language:English
Subjects:
carrier density fluctuations
Charge carrier density
discharge simulation
Discharges (electric)
Fault location
Fluctuations
Ionization
Mathematical models
multi-branching streamer
natural ester
negative streamer
Oils
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Xin, X.J.
Luo, L.
Song, P.C.
Zuo, H.C.
description In this article, a multi-branching streamer discharge model considering random fluctuations of carrier density is established based on the electrohydrodynamic discharge model, and the multi-branching streamer discharge under impulse voltage is carried out by finite element method. The morphologies of positive and negative streamers with multiple branches are obtained. The randomness branching characteristics of positive and negative streamers under the same voltage are explored, and the differences in branching characteristics of positive and negative streamers are analyzed. Results show that carrier density fluctuations difference significantly influence the positive and negative streamer branches, and the random fluctuations of carrier density are an essential factor for the formation of negative streamer branches. The simulation results in this article are in good reflect of the formation characteristics of positive and negative streamer branches obtained in the experiments, which can better explain the morphological differences between the positive and negative streamers.
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subjects carrier density fluctuations
Charge carrier density
discharge simulation
Discharges (electric)
Fault location
Fluctuations
Ionization
Mathematical models
multi-branching streamer
natural ester
negative streamer
Oils
title Simulation of Multi-Branching Streamer Discharge Considering Random Fluctuations of Carrier Density in Natural Ester under Pulsed Voltage
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