Work

1-ϕ Seven-Level Switched-Capacitor Boost Multilevel Inverter Topology With Optimized Number of Components

Year: 2025

Type: article

Abstract: Increasing the voltage of energy sources, such as photovoltaic (PV), fuel cells, and battery storage units, requires a voltage-boosting technique. This paper introduces an efficient switched-capacitor multilevel inverter (SC-MLI) capable of generating a boosted seven-level output voltage. The key advantages of this topology include the inherent self-balancing of capacitor voltages without the need for auxiliary balancing techniques. Additionally, the proposed SC-MLI offers numerous features such as lower voltage stress, improved efficiency, and reduced overall cost. The proposed topology has been evaluated based on parameters such as component count, THD, cost, and efficiency. Experimental validation was conducted on a 1.0 kW prototype setup under varying modulation index and sudden load changes. Finally, a thorough comparison with state-of-the-art seven-level multilevel inverters highlighted the features of the proposed topology.

Source: IEEE Access

DOI: 10.1109/access.2025.3558617

Authors: Ahmed Awadelseed, Arkadiusz Lewicki, Dmytro Kondratenko

Institution: Gdańsk University of Technology

Language: English

Topic: Multilevel Inverters and Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,075