Examining the operation of the grounding system of a PV installation

This project attempts to evaluate the consequence of surges occurring in the operation of a lightning protection system of a photovoltaic installation through the prediction of the forms and amplitudes of the arising voltage. The function of the grounding grid of an existing photovoltaic system is simulated in the well-known circuit analysis program ATP-EMTP by using the Pi equivalent model with distributed parameters as to consider the transients. To point out the theoretical appearing maximum amplitude of the voltage, the form of the grid, the entrance of the surge and the ionization effect are taken into consideration.