Grid connected PV systems with single-phase inverter

This article analyses a photovoltaic (PV) system connected to the electrical grid, which uses Maximum Power Point Tracking (MPPT) control. The system is composed of a single-phase inverter, filter and low-frequency transformer connected to the grid. A detailed simulation model of whole system including the control algorithms is created. The used method for MPPT is perturb and observe. A simulation study has been realized using Matlab/Simulink software environment. The obtained theoretical results for the single-phase PV system are validated experimentally under the same operating conditions.