Transient lightning response of grounding grids in a horizontal, multilayered soil model that considers soil ionization effects with time‐domain quasi‐static complex images

Abstract

AbstractA novel mathematical model is proposed that can accurately calculate the lightning current distribution and lightning impulse response of a grounding horizontal grid with a vertical rod embedded in a horizontal, multilayered earth model, under the consideration of soil‐ionization effects. To improve the computational efficiency, a quasi‐static complex image method and the closed form of the time‐domain Green's function were introduced into the model.