Three phase modular multilevel inverter-based multi-terminal asymmetrical DC inputs for renewable energy applications

This paper introduces a compact three-phase modular multilevel inverter (MMLI) based on asymmetrical input multi-terminal for different ratings of PV systems. The proposed three-phase inverter utilizes reduced component counts. It combines three half-bridge cells for each phase for 7-level output vo...

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Bibliographic Details
Published in:	Engineering science and technology, an international journal Vol. 23; no. 4; pp. 831 - 839
Main Authors:	Ahmed, Taiea A., Mohamed, Essam E.M., Youssef, Abdel-Raheem, Ibrahim, A.A., Saeed, Mahmoud S.R., Ali, Ahmed I.M.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01-08-2020 Elsevier
Subjects:	Cascaded half bridge Pulse-width modulation THD Three-phase modular multilevel inverter THD Cascaded half bridge Three-phase modular multilevel inverter Pulse-width modulation
Online Access:	Get full text
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Summary:	This paper introduces a compact three-phase modular multilevel inverter (MMLI) based on asymmetrical input multi-terminal for different ratings of PV systems. The proposed three-phase inverter utilizes reduced component counts. It combines three half-bridge cells for each phase for 7-level output voltage generation. Therefore, the proposed MLI exhibits less number of switching devices for the cost aspects as well as control simplicity. The proposed inverter is analyzed for modular operation and supported by a vital comparative study to show the inverter merits. The proposed MMLI is investigated and analyzed using Matlab/Simulink. Finally, the MMLI is experimentally validated.
ISSN:	2215-0986 2215-0986
DOI:	10.1016/j.jestch.2019.11.003