Characteristics of Negative Corona Discharge in Air at Various Gaps

Sun, Hongyu; Huang, Songling; Wang, Qing; Wang, Shen; Zhao, Wei

doi:10.1109/tps.2018.2884696

Characteristics of Negative Corona Discharge in Air at Various Gaps

Sun, Hongyu; Huang, Songling; Wang, Qing; Wang, Shen; Zhao, Wei

Authors

Hongyu Sun

Songling Huang

Dr Qing Wang qing.wang@durham.ac.uk
Associate Professor

Wei Zhao

Abstract

The length of the air gap in a negative corona discharge, which affects many corresponding parameters in the discharge process, is of vital importance for the physical investigations. A hydrodynamic drift–diffusion approximation model considering photoionization utilizing the finite-element method has been used in needle-to-plane air gaps. Trichel pulses, pulse frequency, electron, and electric field distribution, and surface current density distribution on the anode plate were presented to study the effect of the gap length. An approximate exponential relationship was found to exist between the corona current and the gap length, and also a linear function was found between the pulse frequency and the gap length. The analysis shows that the characteristics of the Trichel pulse are strongly dominated by the length of the air gap.

Citation

Sun, H., Huang, S., Wang, Q., Wang, S., & Zhao, W. (2018). Characteristics of Negative Corona Discharge in Air at Various Gaps. IEEE Transactions on Plasma Science, 47(14), 736-741. https://doi.org/10.1109/tps.2018.2884696

Journal Article Type	Article
Online Publication Date	Dec 17, 2018
Publication Date	Dec 17, 2018
Deposit Date	Jan 18, 2019
Publicly Available Date	Jan 22, 2019
Journal	IEEE Transactions on Plasma Science
Print ISSN	0093-3813
Electronic ISSN	1939-9375
Publisher	Institute of Electrical and Electronics Engineers
Peer Reviewed	Peer Reviewed
Volume	47
Issue	14
Pages	736-741
DOI	https://doi.org/10.1109/tps.2018.2884696

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