1. A Single-Source Single-Stage Switched-Boost Multilevel Inverter: Operation, Topological Extensions, and Experimental Validation.
- Author
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Farhangi, Majid, Barzegarkhoo, Reza, Aguilera, Ricardo P., Lee, Sze Sing, Lu, Dylan Dah-Chuan, and Siwakoti, Yam P.
- Subjects
MODULAR construction ,CAPACITOR switching ,RENEWABLE energy sources ,STRAY currents ,HARMONIC distortion (Physics) ,MULTILEVEL models ,VOLTAGE - Abstract
In this article, we present a family of multilevel converters with the single-stage dynamic voltage-boosting feature, reduced number of circuit components, modular structure, bidirectional operation, continuous input current, and acceptable overall efficiency. The proposed structure is based on a three-level single-stage boost integrated inverter with an embedded quasi-H-bridge (QHB) cell. It is comprised of five unidirectional power switches and a floating capacitor. By differential connection of two or three QHB cells and with the aim of a single inductor/input dc source, several derived topologies for both the single and three-phase applications with different multilevel output voltage performances have been achieved. The aforementioned advantages make this converter a suitable candidate for renewable energy applications. Theoretical analysis, design consideration, comparative study, and several experimental results for a 3-kW laboratory-built system are presented to validate the effectiveness and feasibility of this proposal. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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