Title :
Five-level cascade asymmetric multilevel converter
Author :
Gonzalez, S.A. ; Valla, M.I. ; Christiansen, C.F.
Author_Institution :
LEICI, Univ. Nac. de La Plata, La Plata, Argentina
fDate :
1/1/2010 12:00:00 AM
Abstract :
A five-level cascaded asymmetric multilevel converter is analysed and designed. This topology synthesises five voltage levels with a reduced number of components when compared to the most common symmetric topologies. It allows getting more voltage levels with less switching states. Its behaviour is similar to a hybrid converter with the advantage of working with only one DC bus. It does not present the usual drawbacks of symmetrical topologies. The cascaded asymmetric converter, presented here, appears as a very attractive alternative among the five-level converters with no voltage balancing problem. The performance of the proposed topology is evaluated with Pspice simulations in different applications.
Keywords :
SPICE; power convertors; DC bus; Pspice simulations; cascade cell multilevel converters; diode clamp multilevel converters; five-level cascade asymmetric multilevel converter; flying capacitor multilevel converters; hybrid converter; power converters; symmetrical topologies;
Journal_Title :
Power Electronics, IET
DOI :
10.1049/iet-pel.2008.0318