Electromagnetic Model of the External Lightning Protection System

Abstract

This paper demonstrates how an existing transient electromagnetic model of grounding system can be employed to model the entire external lightning protection system, i.e. the air-termination system, the down conductor system and the earth- termination system. The presented model is a fixed-image based electromagnetic model which utilizes an originally developed transformation procedure between the time and frequency domains. The soil in which the grounding system is buried is approximated by a horizontally stratified multilayer medium.

Dino Lovrić

Associate Professor | Department of Theoretical Electrical Engineering and Modelling

Associate professor at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, with reserch focused on the development of numerical models of grounding systems in various types of soil, particularly in scenarios involving the dissipation of alternating current and transient currents caused by lightning strikes or switching overvoltages, also involved in developing models of dynamic and transient processes in power systems using modern numerical methods.

Slavko Vujević

Professor Emeritus

An expert in electrical engineering, particularly known for his contributions to numerical modeling of electromagnetic phenomena, lightning protection, and grounding. Throughout his career, he was a key member of the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split, where he taught, mentored students, and actively participated in scientific research and international professional organizations.