Wang, Yaoqiang, Yuan, Yisen, Li, Gen  ORCID: https://orcid.org/0000-0002-0649-9493, Chen, Tianjin, Wang, Kewen and Liang, Jun ORCID: https://orcid.org/0000-0001-7511-449X
2020.
A generalized multilevel inverter based on T-Type switched capacitor module with reduced devices.
Energies
13
(17)
, 4406.
10.3390/en13174406
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Abstract
Conventional multilevel inverters have problems in terms of their complicated expansion and large number of devices. This paper proposes a modular expanded multilevel inverter, which can effectively simplify the expansion and reduce the number of devices. The proposed inverter can ensure the voltage balancing of the voltage-dividing capacitors. The cascading of the T-type switched capacitor module and the step-by-step charging method of the switched capacitors enable the inverter to achieve high output voltage levels and voltage gain. In addition, the inversion can be achieved without the H-bridge, which greatly reduces the total standing voltage of the switches. The nine-level inverter of the proposed topology can be realized with only ten switches, obtaining a voltage gain that is two times larger. The above merits were validated through theoretical analysis and experiments. The proposed inverter has good application prospects in medium- and low-voltage photovoltaic power generation.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | MDPI |
| ISSN: | 1996-1073 |
| Date of First Compliant Deposit: | 26 August 2020 |
| Date of Acceptance: | 21 August 2020 |
| Last Modified: | 05 May 2023 07:46 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/134517 |
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