Calculation of the (I-V) Characteristics of Knife-Line Electrode Model in Air

This research compares the formulation of the current-voltage (I-V) characteristics of symmetric and asymmetric direct current CCP equipment in the context of corona discharges in air. The electrode configuration model used for the symmetric CCP case is the coaxial cylinder, and for the asymmetric CCP case, it is the knife- line. Both types of electrodes use a modified capacitance concept in the (I-V) characteristic calculations. This concept originates from a geometric approach solution (electrode sizes), where there is a corona electric current multiplier factor (corona current multiplication factor compared to conventional electric current) as well as the nature of the corona discharge, which will collect at the sharp tip of the active electrode.