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Cascaded multilevel converters in recent research and applications

Malinowski M.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2017

Vol. 65, nr 5

567--578

Multilevel converters have been intensively investigated and developed since 1960s and have found successful industrial applications. The aim of this paper is to present state of the art as well as recent research and applications of cascaded multilevel converters, which are a very interesting solution for power distribution systems and renewable energy sources. Cascaded multilevel converters can easily operate at medium and high voltage based on the series connection of power modules (cells), which use standard low-voltage component configurations. Series connections of modules (cells) allow for high quality output voltages and input currents, reduction of passive components and availability of component redundancy. Due to these features the cascaded multilevel converters have been recognized as attractive solutions for high-voltage direct-current (HVDC) transmission, solid state transformers (SST) and photovoltaic (PV) systems.

Badanie 27-poziomowego falownika kaskadowego

Wiatr P.

Przegląd Elektrotechniczny

2012

R. 88, nr 11a

43-46

Artykuł przedstawia topologię 27-poziomowego przekształtnika kaskadowego. W ramach pracy opisano sposób modulacji przekształtnika. Przedstawiono wyniki badań symulacyjnych i laboratoryjnych oraz podsumowano zalety i wady badanej topologii.

This article presents a 27-level cascaded converter topology. Within this paper a modulation strategy and results of simulation as well as laboratory model verification has been presented. Finally, the article summarizes advantages and disadvantages of the studied topology.