Topological design and modulation strategy for buck-boost three-level inverters

Gao, Feng, Teodorescu, Remus, Blaabjerg, Frede, Loh, Poh Chiang, & Vilathgamuwa, D. Mahinda (2007) Topological design and modulation strategy for buck-boost three-level inverters. In Batarseh, Issa (Ed.) Proceedings of the 2007 IEEE Power Electronics Specialists Conference, IEEE, Orlando, Florida, pp. 1578-1584.

View at publisher


To date, designed topologies for DC-AC inversion with both voltage-buck and boost capabilities are mainly focused on two-level circuitries with extensions to three-level possibilities left nearly unexplored. Contributing to this area of research, this paper presents the design of a number of viable buck-boost three-level inverters that can also support bidirectional power conversion. The proposed front-end circuitry is developed from the Cuk-derived buck-boost two-level inverter, and by using the "alternative phase opposition disposition" (APOD) modulation scheme, the buck-boost three-level inverters can perform distinct five-level line voltage and three-level phase voltage switching by simply controlling the active switches located in the designed voltage boost section of the circuits. As a cost saving option, one active switch can further be removed from the voltage-boost section of the circuits by simply re-routing the gating commands of the remaining switches without influencing the ac output voltage amplitude. To verify the validity of the proposed inverters, Matlab/PLECS simulations were performed before a laboratory prototype was implemented for experimental testing.

Impact and interest:

4 citations in Scopus
1 citations in Web of Science®
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 74167
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Buck-boost, Dc-link-cascaded inverter, Neutral-point-clamped inverter, Three-level inverters
DOI: 10.1109/PESC.2007.4342231
ISBN: 9781424406548
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2007 IEEE
Deposited On: 21 Jul 2014 22:09
Last Modified: 22 Jun 2017 02:01

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page