A Switched-DC Source Sub-Module Multilevel Inverter Topology for Renewable Energy Source Applications

Hosseinzadeh, Mohammad Ali; Sarebanzadeh, Maryam; Babaei, Ebrahim; Rivera, Marco; Wheeler, Patrick

Abstract

This article presents a sub-module topology for switched DC source cascaded multilevel inverter configurations that require fewer switching devices and can generate a high number of voltage levels that are suitable for renewable energy sources. The proposed sub-module topology comprises eight semiconductor switches and four DC voltage sources that generate fifteen voltage levels. Furthermore, the cascaded topology is presented to increase the output voltage levels and to minimize the number of components. The proposed sub-module inverter and its cascaded topology are compared with several multilevel inverters to indicate the advantages and drawbacks of the proposal. The comparison studies show that the proposed topologies require fewer switching devices and gate drivers in comparison with other multilevel inverter topologies. In addition, the proposed cascaded topology reduces the cost of the inverter when compared to other multilevel inverter configurations. Furthermore, the power loss calculations and the implementation of the proposed topology in grid-connected photovoltaic applications are simulated and analyzed. Finally, the performance of the proposal is verified by simulation and experimental results for both symmetric and asymmetric sub-module topologies as well as for the proposed cascaded topology.

Citation

Hosseinzadeh, M. A., Sarebanzadeh, M., Babaei, E., Rivera, M., & Wheeler, P. (2021). A Switched-DC Source Sub-Module Multilevel Inverter Topology for Renewable Energy Source Applications. IEEE Access, 9, 135964-135982. https://doi.org/10.1109/access.2021.3115660

• Journal Article Type: Article
• Acceptance Date: Sep 13, 2021
• Online Publication Date: Sep 24, 2021
• Publication Date: Sep 24, 2021
• Deposit Date: Oct 29, 2021
• Publicly Available Date: Oct 29, 2021
• Journal: IEEE Access
• Electronic ISSN: 2169-3536
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 9
• Pages: 135964-135982
• DOI: https://doi.org/10.1109/access.2021.3115660
• Keywords: General Engineering; General Materials Science; General Computer Science
• Public URL: https://nottingham-repository.worktribe.com/output/6544073
• Publisher URL: https://ieeexplore.ieee.org/abstract/document/9548050
• Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.