Abstract

Corona discharge to a glass surface is challenging to model due to a poorly understood air and surface ionization process. A modeling methodology based on the transmission line modeling (TLM) approach is proposed to simulate the streamer propagation process. The time-changing corona streamer resistance is estimated using the Rompe and Weizel spark model. The streamer is represented using small segments consisting of the arc resistance, per unit length (PUL) capacitance of the streamer, PUL inductance, a switch representing streamer formation, and a surface discharge gap voltage representing the voltage drop caused by ions within the streamer length. The propagation of the corona streamer depends on the tangential electric field strength at the streamer tip being higher or lower than the breakdown threshold for streamer formation. This preliminary 1D model shows plausible results for the current waveform shape, Lichtenburg dust figure diameter and streamer propagation velocity for a positive surface discharge to the glass. Although the model requires further improvement to predict propagation of multiple corona streamers, it provides a basis for simulation of a corona discharge on a glass surface which is related to the behavior of the underlying physics.

Department(s)

Electrical and Computer Engineering

Comments

National Science Foundation, Grant IIP-1916535

Keywords and Phrases

Corona Discharge; Electrostatic Discharge; Glass; Rompe and Weizel Spark Model; Touchscreen; Transmission Line Model Theory

International Standard Serial Number (ISSN)

2158-1118; 1077-4076

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

01 Jan 2024

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