Abstract:

The main aim of this project is an H-bridge multilevel inverter with a reduced number of switches for solar systems. In this paper the (Photovoltaic) PV based multilevel inverter with reduced number of switches is presented. Compared to conventional inverter this inverter produces higher number of output levels with a smaller number of switches and thus harmonics are reduced and the power quality is improved. This modified H-bridge inverter uses the same level of an inverter with a 25% reduction in the number of switches. This results in reduced switching losses, installation cost, and converter cost. Special care is taken to obtain an optimal number of switches. The proposed PV based inverter is simulated for a five-level using MATLAB/SIMLUNIK with Phase Shift Pulse Width Modulation (PSPWM) control. A comparison between conventional (PDPWM) and proposed (PSPWM) control systems for Modified H-bridge multilevel inverter are shown

Description:

Photovoltaic (PV), Phase Shift Pulse Width Modulation (PSPWM), H-bridge Multilevel Inverter