The electrode model of corona plasma discharge theory for current–voltage characteristics case in air

Abstract

The calculation of the electrode model in the corona plasma discharge case has been carried out using the semi-ellipse line to plane (S-ELTP) configuration model in the air. The final focus of this research is to calculate the (I–V) current–voltage characteristics of the plasmas discharge. Part of the work in the (I–V) characteristics includes computational calculations and carrying out experimental activities. Experimental data include current vs voltage variations that occur at the time of plasma discharge. All the discharge processes are generated by a positive DC voltage source. The arrangement of the geometric configuration of the electrodes consists of two plates in the form of a half ellipse (active electrode) and a rectangular plate (passive electrode) in a mutually perpendicular position. The size variation of the active electrode includes variations of the small and large size plates with each plate having two variations in the distance between the two electrodes. The calculation concept of the electrode model is to insert the certain shape sharpness factor of k in the numerical calculation in the sharp electrode capacitance part. The k factor value is obtained by calculating the fitting between numerical simulation and research data. The research results prove that there is a fairly high level of conformity between numerical simulation and the research data. Simulation calculation for the (I–V) characteristic curve and its level of accuracy used Python GUI Programming.

The (I-V) Curve Models of The Corona Plasmas Discharge Using The electrodes configuration model of Twin Blades Forming An Angle To The Plane.

“…Based on experimental results [8], the corona discharge with the most significant and brightest electric current density will emerge from the tip of the active electrode with the highest sharpness, such as at the end of the electrode at point u = a/2. According to [14,15], the solution to the condition is making a modified capacitance model (MCM) concept by adding a current multiplier factor k at the integration limit at the point u = a/2. The application of the MCM concept to Eq.…”

“…where Vi is the apparent corona-starting voltage. There is a relationship between the electric current and the voltage difference V, as expressed in [14][15][16][17] through the equation,…”

“…Several developments in the (I-V) characteristic curve models are configuration models of electrode coaxial cylinders [13] and electrohydrodynamic effects [10]. Research [14,15] began to develop an (I-V) characteristic curve model with a geometric approximation pattern of the active electrode based on research results [8h]. Research [14,15] used the modified capacitance model (MCM); the integration limit value of the capacitance at the sharp end of the active electrode has raised the concept of the multiplier factor k. The value of the factor k is determined based on the adjustment between mathematical analytics calculation and experimental results (the fitting model).…”

“…Research [14,15] began to develop an (I-V) characteristic curve model with a geometric approximation pattern of the active electrode based on research results [8h]. Research [14,15] used the modified capacitance model (MCM); the integration limit value of the capacitance at the sharp end of the active electrode has raised the concept of the multiplier factor k. The value of the factor k is determined based on the adjustment between mathematical analytics calculation and experimental results (the fitting model). The emergence of the factor k will cause plasma current flow at the sharp-shaped active electrode to have a bigger current multiple than the other electrode parts based on the experimental results [8].…”

“…This study uses the research concept of [14,15], using a configuration model of Twin Blades Forming An Angle To The Plane (TBFA-P) in the air with a distance between passive and active electrodes is d. The passive electrode is a thin copper shaped like a rectangular plate with a horizontal position. The active electrode is a thin copper shaped like a rectangular plate and two twin triangular plates that form an angle θ in the middle, with this electrode being vertical above the position of the passive electrode.…”