Immunity of photovoltaic installation on electromagnetic surge disturbances

Abstract

The work analyzes the correctness of the functioning of the photovoltaic system with a rated electrical power of 3500 W, consisting of 14 photovoltaic modules and a power electronic converter in the form of a single phase voltage inverter equipped with a maximum power point tracking system, disturbed by voltage stroke. The voltage surge with the parameters 1.2/50 μs, simulating a lightning discharge, was introduced into the system from the power grid side. For the purpose of computer simulation performed in Matlab/Simulink, the recommendations included in the PN-EN 61000-4-5 standard "Immunity of the surge disturbances" were used. Significant changes in the voltage and current on the AC side, related to the system of energy return to the power grid were shown.

Simulation of the Immunity Test of a Photovoltaic System Disturbed by Electromagnetic Voltage Surge

“…(a) An electrical or electronic device must not generate electromagnetic disturbances above a level that would cause incorrect operation of other devices in this electromagnetic environment, (b) An electrical or electronic device should have such a degree of immunity to electromagnetic disturbances that causes its properly operation during use [2][3][4].…”