A Novel High Boost Five-Level Inverter With Wide Range of Input Voltage Variations for Photovoltaic Applications

Abstract

This article introduces a new single-stage boost five-level inverter with minimum components, consisting of six switches, one diode and two capacitors. The proposed topology has benefits, such as boosted output voltage, compactness, and lower impulse charge currents due to soft charging. The benefits of the proposed topology are elucidated through a comparative analysis with recently developed single-stage boost five-level inverter topologies. The required switching sequence pattern is generated by single-carrier pulse-width modulation. Through simulation and a laboratory prototype model, the proposed 400 W topology is validated, demonstrating its suitability across a range of modulation indices and dynamically changing loads.