Abstract:
Photovoltaic (PV) systems are very popular sources of renewable electrical energy. Voltage source inverters (VSI) are the main workhorses of PV installations, providing controlled conversion of dc voltage from PV strings into the required ac voltage for energy consumers. To ensure synchronization and symmetry of basic voltages of PV inverters at increased power levels, an original strategy and scheme of synchronous modulation have been developed for regulation of inverters of some promising structures of systems.