A Single-Stage 13 Level Symmetric AC-DC H-Bridge Multilevel Inverter with Decreased Switch Count improves the power quality

DOI

10.2991/978-94-6463-754-0_46How to use a DOI?

Keywords

Multi Carrier Pulse Width Modulation (MC-PWM); cascaded H-bridge; Harmonic Distortion; power quality

Abstract

The distribution of maximum available power depends heavily on the quality and dependability of electronic high-powerconverters. Multilevel Inverters (MLIs) convert a fixed DC input into an AC output with a stepped waveform. However, commercial and utility applications’ power system harmonics can cause voltage distortion, negatively impacting connected equipmentand loads. Traditional inverter designs with increased switching counts often lead to higher switchinglosses and more significant output distortion. To solve such challenges, this study proposes a novel 13-level cascaded H-bridge inverter employing various Multi-Carrier Pulse Width Modulation (MC-PWM) control techniques. These MC-PWM methods are designed to regulate the output voltage and suppress unwanted harmonics, with carrier-based sinusoidal PWM being evaluated as an efficient approach. While switching operations often struggle with lower-order harmonics, PWM procedures enable enhanced voltage regulation in switching devices, applicable to systems with familiar DC sources and isolated DC sources, such as cascaded H-bridge configurations. Sinusoidal reference signal configurations are simulated in MATLAB to evaluate performance. Comparative analysis obtained that the proposed system achieves reduced power losses and improved harmonic performance, delivering lower THD is 1.10.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - C. Rajeswari
AU  - R. Subasri
PY  - 2025
DA  - 2025/06/30
TI  - A Single-Stage 13 Level Symmetric AC-DC H-Bridge Multilevel Inverter with Decreased Switch Count improves the power quality
BT  - Proceedings of the 2025 International Conference on Advanced Research in Electronics and Communication Systems (ICARECS-2025)
PB  - Atlantis Press
SP  - 521
EP  - 533
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-754-0_46
DO  - 10.2991/978-94-6463-754-0_46
ID  - Rajeswari2025
ER  -