Design & Analysis of Auxiliary Circuit based Hybrid Bridge Multilevel Inverter for Symmetrical and Asymmetrical Sources
Year: 2026
Type: conference-paper
Abstract: The paper gives a design and a study of the Hybrid Bridge Multilevel Inverter (HBMI) topology for both symmetrical and asymmetrical sources. Multilevel inverters (MLIs) have attracted considerable interest because of their ability to generate high-quality output waveforms with lower harmonic distortion and electromagnetic interference. The proposed HBMI topology has the advantages of the traditional H-bridge inverters and has introduced auxiliary circuits to enhance the performance and efficiency of the traditional H-bridge converter. For the symmetric design, one can use the same voltage source, and thus the design and control will be easy. In the asymmetrical one, various levels of DC voltages are used and this provides more output voltage levels by an equal number of power electronic components, which enhances the quality of the output waveforms without greatly complicating the circuit. The converter proposed involves two auxiliary circuits, with the auxiliary being two diodes in addition to the one IGBT with the bridge inverter. The topology proposed can be applied to symmetrical or asymmetrical sources with the ability to achieve the seven voltage levels using HBMI. The load-side voltage and current harmonic analysis and analysis of the number of devices are presented.
Authors: Ashish Jain, Prateek Nigam, Kishor Thakre
Institution: AISECT University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7203690004