Solar PV based single stage cascaded seven level converter for grid interfaced systems

Abstract

Thispaper represents solar photovoltaic (PV) array fed to cascaded H-bridge seven level converter system where maximum power point tracking (MPPT) is achieved bythe perturb and observe (P&O) control algorithm. To realize good feasibility and utilization of PV modules and to maximize the solar energy extraction, the viable control and modulation are instigated. Here, the control is realized using the modulation compensation by the use of phase disposition pulse width modulation (PDPWM)technique. The design is carried out for a 5 kW system and the performance is studied in steady state and dynamic conditions. Simulations are madeby using MATLAB/Simulink and the performance is validated under IEEE-519 standard.