Ajou University repository

Switched-Capacitor-Based Five-Level T-Type Inverter (SC-5TI) with Soft-Charging and Enhanced DC-Link Voltage Utilizationoa mark
  • Lee, Sze Sing ;
  • Siwakoti, Yam ;
  • Barzegarkhoo, Reza ;
  • Lee, Kyo Beum
Citations

SCOPUS

31

Citation Export

Publication Year
2021-12-01
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
IEEE Transactions on Power Electronics, Vol.36, pp.13958-13967
Keyword
Five levelmultilevel invertersoft chargingswitched capacitor (SC)T-type inverter
Mesh Keyword
Active neutral point clampedCapacitor voltagesCurrent spikesDC-link voltagesMultilevel inverterSelf-balancingSwitched capacitorTopological structure
All Science Classification Codes (ASJC)
Electrical and Electronic Engineering
Abstract
The emerging switched-capacitor-based multilevel inverters offer interesting merits such as self-balancing of capacitor voltages and boosting of voltage gain. While the switched capacitors (SCs) in these topologies are charged in parallel with the dc source, severe current spikes issue is inevitable, rendering them impractical at high power. This article proposes a novel switched-capacitor-based T-type inverter that mitigates the current spikes by enabling soft charging for its integrated SCs, where both SC in the topological structure charges through a dedicated circuit comprises of an inductor and two switches. The proposed topology is capable of five-level ac voltage generation and when compared to a classical T-type/ANPC (active neutral-point-clamped) inverter, it achieves higher dc-link voltage utilization since its maximum attainable voltage gain is doubled. Theoretical findings of the proposed topology are validated by both the simulation and experimental results.
Language
eng
URI
https://dspace.ajou.ac.kr/dev/handle/2018.oak/32216
DOI
https://doi.org/10.1109/tpel.2021.3088443
Fulltext

Type
Article
Show full item record

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

 Lee, Kyo-Beum Image
Lee, Kyo-Beum이교범
Department of Electrical and Computer Engineering
Read More

Total Views & Downloads

File Download

  • There are no files associated with this item.