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


Autoria(s): Gao, Feng; Teodorescu, Remus; Blaabjerg, Frede; Loh, Poh Chiang; Vilathgamuwa, D. Mahinda
Contribuinte(s)

Batarseh, Issa

Data(s)

2007

Resumo

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.

Identificador

http://eprints.qut.edu.au/74167/

Publicador

IEEE

Relação

DOI:10.1109/PESC.2007.4342231

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.

Direitos

Copyright 2007 IEEE

Fonte

School of Electrical Engineering & Computer Science; Science & Engineering Faculty

Palavras-Chave #Buck-boost #Dc-link-cascaded inverter #Neutral-point-clamped inverter #Three-level inverters
Tipo

Conference Paper