Current density modeling of a linear pin–plane array corona discharge

In a recent paper, we reported on negative pin-to-plane corona in a quasi-electrostatic approximation. The model was consistent with the experimentally observed variation of corona current with the inverse of the square of gap distance. This paper assesses current density distributions of a linear array of point coronodes by using our Laplacian model of negative point-to-plane system. The results of the modeling are compared to other experimental data on density distributions available in the literature. The trend and shape of the theoretically derived longitudinal current density and those observed experimentally roughly agree. The advantages and limitations of the analysis are also presented.