A new time-sharing charge 5L inverter

Author

Muneshima, Masakazu ; Urushibata, Shota ; Hui, Zhang ; Koganezawa, Takehisa ; Nomura, Masakatsu

Author_Institution

Meidensha Corp., Tokyo, Japan

fYear

2011

fDate

5-8 Dec. 2011

Firstpage

115

Lastpage

120

Abstract

Cascade multilevel inverter has been proposed for high voltage applications. However, such a topology always requires an isolated multiphase transformer for individual inverter cells, which increases the weight, volume and cost of equipment, as well as wiring complexity on transformer´s secondary side. In this paper, a new flying capacitor 5 level (FC 5L) inverter with single DC source is proposed, utilizing switching pattern control as well as time-sharing charge concept. Validity during commutation period is also analyzed. Performance such as 5 level output phase voltage, voltage balancing of flying capacitors are verified by simulation.

Keywords

invertors; power transformers; cascade multilevel inverter; commutation period; flying capacitor five level invertor; inverter cells; multiphase transformer; time-sharing charge 5L inverter; transformer secondary side; wiring complexity; Capacitors; Insulated gate bipolar transistors; Inverters; Switches; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2011 IEEE Ninth International Conference on

Conference_Location

Singapore

ISSN

2164-5256

Print_ISBN

978-1-61284-999-7

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2011.6147233

Filename

6147233