Experimental Analysis of Five-Level Inverter using SEPIC Converter

Abstract

The research in Power Inverter is one of the most rapidly changing technologies in the modern era, with many researchers beginning to replace traditional so-called inverter-based transformers with other sorts of circuits. A major issue with traditional transformers is that they come with a price and occupy up a lot of space. This study will provide a new technique for replacing the traditional transformer idea by combining a dual DC/DC SEPIC converter with a modified H-bridge inverter to create a five-level inverter with multirange voltage selection that is dependent on the duty-cycle of the SEPIC converter. The proposed inverter’s input DC voltage is stepped-up, resulting in a five-level output voltage waveform appropriate for driving an AC motor. The recommended inverter is evaluated using a PowerSim simulation with different duty-cycle values.