A New Approach to Include Complex Grounding System in Lightning Transient Studies and EMI Evaluations

A New Approach to Include Complex Grounding System in Lightning Transient Studies and EMI Evaluations

Blog Article

A new approach to lightning transient studies including complex grounding grids is presented in this paper.The grounding system is modeled in Matlab/Simulink based on the transmission line itsmajorlook.com theory.Using a bottom-up approach and considering the properties of the fundamental elements, a detailed view of measurement values will be presented and analyzed.The Matlab/Simulink grounding system models are interfaced for co-simulation with EMTP-RV trough Functional Mock-up Interface (FMI) 2.0.

This modeling approach allows the use of the full component library and jmannino.com network design by EMTP-RV to evaluate and analyze the effects of the grounding system and transmission network simultaneously in Matlab/Simulink.The results present a simplified transmission system where a surge is injected, Conseil International des Grands Réseaux Électriques (CIGRE) 1 kA 1.2/50, in far-end of a transmission line.When reaching a substation, the surge is injected into the grounding system through a surge arrester.