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A Diamond Shaped Multilevel Inverter With Dual Mode of Operation

Meraj, Sheikh Tanzim, Hasan, Mohammad Kamrul, Islam, Jahedul, El-Ebiary, Yousef A. Baker, Nebhen, Jamel, Hossain, Md. Moinul, Alam, Md. Khorshed, Vo, Nguyen (2021) A Diamond Shaped Multilevel Inverter With Dual Mode of Operation. IEEE Access, 9 . pp. 59873-59887. E-ISSN 2169-3536. (doi:10.1109/ACCESS.2021.3067139) (KAR id:87994)

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https://doi.org/10.1109/ACCESS.2021.3067139

Abstract

This study presents a novel multilevel inverter structure that can operate in both switched capacitor and asymmetric DC source modes. In the first mode, it can produce seven-level output voltage employing two switched capacitors and one single DC supply. The five-level output voltage is produced while operating the second mode. The voltage ratio between the input and output voltage for the capacitor mode is 1:3 (triple voltage gain). During the first mode, the capacitor of the inverter is self -balanced whereas the inverter can produce higher voltage output in the DC source mode. The proposed inverter reduces the total standing voltage in both modes of operations as it can generate the output voltage without requiring any additional H-bridge circuit. The feasibility and predominate features of the proposed inverter have been established by comparing with existing topologies in terms of power components count. Results obtained from this study are validated using simulation employing sinusoidal pulse width modulation (SPWM). A hardware prototype has also been developed for further validation.

Item Type: Article
DOI/Identification number: 10.1109/ACCESS.2021.3067139
Uncontrolled keywords: Asymmetric inverter, boost inverter, Multilevel inverter, power electronics, switched capacitor, SPWM.
Subjects: Q Science > Q Science (General)
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Moinul Hossain
Date Deposited: 09 May 2021 22:18 UTC
Last Modified: 10 May 2021 11:10 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/87994 (The current URI for this page, for reference purposes)
Hossain, Md. Moinul: https://orcid.org/0000-0003-4184-2397
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