Electrical Modelling of a Positive Point to Plane Corona Discharge at Atmospheric Pressure

Abstract

Key words Positive point to plane corona discharges, electrical modelling, recursive least square (RLS) algorithm.In this paper, we present a contribution to the electrical modelling of corona discharges in point to plane positive dry air at atmospheric pressure. An equivalent circuit model of the discharge is proposed and the evolution of equivalent electrical parameters is obtained using a mathematical method of identification based on the Recursive Least Square (RLS) algorithm. A comparison between the forms of measured discharge current and calculated model currents shows a good agreement and validates the model as well as the method.

Improved fictitious charge method for calculations of electric potential and field generated by point-to-plane electrodes

“…11.It corresponds to the ratio between the absolute value of the accumulated charges on the plane electrode overV 0 the applied DC voltage. C obviously decreases with the increasing of inter- electrode distance [17]. This is due to the decrease of the electric field in the vicinity of the plane and therefore the concomitant decrease of the surface charge density on the plane.…”