Design of an Advanced Five-Level Inverter for A Photovoltaic System

Abstract

This paper presents a design of an advanced five-level inverter for photovoltaic (PV) application. Compared to conventional five level topologies, this inverter reduces the number of power switches, diodes, dimension and expense in making the system. Therefore, this topology has a simple structure, easy control, and high step-up voltage ratio. The prime feature of this topology is that only four of the available switches are functioned at high frequency. Therefore, the overall losses in switching are reduced. A model is constructed in MATLAB/ SIMULINK and tested. The concept is justified using appropriate simulation results.