Performance Investigations of PV Grid-Integrated Modular Multilevel Inverter

This paper proposes a single-phase multilevel inverter with seven levels output for grid connected photovoltaic applications. With the appropriate gate signal configuration, the seven-level inverters which are proposed keep producing seven-level alternating current (AC) root mean square output voltages. In this photovoltaic (PV) based multilevel inverters are currently focusing on minimizing the number of power electronics switches and DC input sources with an acceptable total harmonic distortion of the voltage waveform output in order to reduce expenses and losses. The proposed seven-level inverter can reduce power dissipation and voltage stresses in power semiconductor converters. The proposed converter has fewer power switches and is more dependable.