Ion-impact secondary emission in negative corona with photoionization
Source abstract
Abstract
A corona discharge measurement system and simulation model are presented to investigate the effects of photoionization and ion-impact secondary emission process in negative corona discharge. The simulation results obtained is shown good agreement with experimental observations. Distribution of electron density along the symmetry axis at three critical moments is shown and the role of photoionization in negative corona discharge is clearly explained. Moreover, the current pulses are also presented under different secondary emission coefficients and the effect of the secondary emission coefficient is discussed.
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Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Plasma Applications and Diagnostics · Plasma Diagnostics and Applications
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Affiliations
North China Electric Power University 1 State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, , 102206 Beijing, People’s Republic of China
North China Electric Power University 2 Beijing Key Laboratory of High Voltage and EMC, , Beijing 102206, China
Funding
High-tech Research and Development Program · National Natural Science Foundation of China · China Southern Power Grid
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