An Improved Cascaded Dual-Buck Inverter

Usman Ali Khan, Honnyong Cha, Ashraf Ali Khan, Heung Geun Kim, Wilson Eberle, Liwei Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

The cascaded H-bridge inverter plays an important role for achieving a high output voltage using standard low voltage rating semiconductor devices in dc-ac power conversion. It possesses shoot-through problem, and requires dead-time in switching signals to solve it. The dead-time reduces practical voltage gain and output waveforms quality. To overcome these inconveniences, an improved cascaded dual-buck inverter having no shoot-through problem is presented in this paper. It can be operated without using dead-times in switching signals. Additionally, the proposed inverter is capable of using power MOSFETs without reverse recovery issues of their body diodes to boost efficiency and increase switching frequencies.compared to the conventional dual-buck dc-ac inverter, the proposed inverter reduces the inverter volume and cost by using fewer inductors. To validate the feasibility of the proposed inverter simulation and experimental results are presented.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages927-933
Number of pages7
ISBN (Electronic)9784886864055
DOIs
StatePublished - 22 Oct 2018
Event8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
Duration: 20 May 201824 May 2018

Publication series

Name2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Conference

Conference8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country/TerritoryJapan
CityNiigata
Period20/05/1824/05/18

Keywords

  • Dual-buck inverter
  • inductor
  • MOSFET
  • power density

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