An Interleaved Switched-Boost Common-Ground Five-Level Inverter
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), 2022, 00, pp. 867-872
- Issue Date:
- 2022-01-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| An Interleaved Switched-Boost Common-Ground Five-Level Inverter.pdf | Published version | 1.89 MB |
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Transfomerless grid-connected inverters with common-grounded circuit architectures and single-stage dy-namic voltage boosting gain are promising candidates for PV energy conversion applications. In this work, a new five-level (5L) variant of this category of inverters is introduced. Key features of the presented inverter are the reduced current stress profile, modularity, uniform peak voltage stress across the switches, higher power handling capability, and bi-directional power flow operation. The proposed topology is comprised of two input inductors, two capacitors, and ten power switches. Through a modular design with a phase-shifted SPWM technique, the injected grid current can be shared among the modules, while the size of the grid-interface filters can be reduced. The working principle of the converter is discussed, and some simulation and experimental results are presented to validate its feasibility.
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