An assessment of H‐bridge less grid‐tied multilevel inverter with minimum device count and lesser total standing voltage

Abstract

An innovative switched‐capacitor‐based inverter is proposed in this paper. The suggested converter can produce a five‐level output voltage by utilizing minimal components (single dc source, six switches, and one capacitor). The proposed topology does not require an H‐bridge setup at the load end to achieve the output voltage level. Furthermore, the proposed converter configuration and its operating principle are investigated in depth. A detailed power loss calculation of the suggested inverter and a comparison with another converter is presented. It demonstrates that the proposed inverter is more cost‐effective and requires fewer components than competing inverters. The effectiveness of the proposed multilevel inverter is verified by using hardware in loop OPAL‐RT OP4510 and further five‐level inverter prototype has been verified by experimentally using dSpace 1103 controller.