performance analysis of a three-level z-source inverter for grid-connected photovoltaic systems using model predictive control

In this paper, a single-stage three-level z-source inverter is utilized for connecting pv panels to the grid. the use of a three-level z-source inverter not only allows adjustment of output voltage but also facilitates the elimination of harmonic components. to extract maximum power from the pv panels, a model predictive control (mpc) strategy based on maximum power point tracking (mppt) is employed. this method allows the mpc to predict the optimal operating point one step ahead, resulting in a faster response compared to conventional perturb and observe (p&o) method under rapid changes. finally, the three-level z-source inverter is simulated using matlab/simulink software, and its performance using the mpc method is analyzed. the simulation results have verified that the converter operates effectively.‎