A Switched-Capacitor-Based 7-Level Self-Balancing High-Gain Inverter Employing a Single DC Source

Yatindra Gopal; Kaibalya Prasad Panda; Akanksha Kumari; Rosas-caro, Julio

doi:10.1155/2023/5545081

A Switched-Capacitor-Based 7-Level Self-Balancing High-Gain Inverter Employing a Single DC Source

Journal

International Transactions on Electrical Energy Systems

ISSN

2050-7038

Date Issued

2023

Author(s)

Yatindra Gopal

Kaibalya Prasad Panda

Akanksha Kumari

Rosas-caro, Julio

Facultad de Ingeniería - CampGDL

Type

text::journal::journal article

DOI

10.1155/2023/5545081

URL

https://scripta.up.edu.mx/handle/20.500.12552/4974

Abstract

This paper discloses a novel switched capacitor (SC)-based 7-level inverter with a single DC source. The proposed inverter has the ability to self-balancing the voltage of the capacitor without using a closed-loop voltage balancing circuit. Two capacitors are equally charged by the input source owing to the series-parallel charging and discharging continuously in a full cycle. The proposed 7-level SC inverter requires less number of switches, driver diodes, and capacitors and a lower number of semiconductor switches than most recently developed topologies. Furthermore, four out of the eight switches operate at the fundamental frequency, which simplifies the control scheme. A fundamental frequency switching scheme is used to control the output of the inverter. The self-balancing and voltage-boosting features of the proposed structure are validated on MATLAB/software platform and verified experimentally.