A new boost type cascaded inverter with single DC source

Author

Muneshima, Masakazu ; Zhang, Hui ; Tokunaga, Shohei ; Urushibata, Shota ; Kodama, Takashi ; Nomura, Masakatsu

Author_Institution

Meidensha Corp., Tokyo, Japan

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

1719

Lastpage

1725

Abstract

Cascaded multilevel inverters with Y connection or Delta-connection have been proposed for high voltage applications. However, these topologies always require isolated transformers for each inverter cell, which makes cost high and wiring complex. Furthermore, system weight and volume also increase accordingly. This paper presents two new types of boost type delta-connection cascaded inverters with only a single DC source. Based on it, a suitable voltage control with PWM modulation is also proposed to improve the inverter control performance and DC capacitors voltage fluctuation. Verification has been carried out by simulation with MATLAB.

Keywords

PWM invertors; cascade control; power transformers; voltage control; DC capacitors; PWM modulation; boost inverters; cascaded multilevel inverters; delta-connection; inverter cell; isolated transformers; voltage control; voltage fluctuation; Capacitance; Capacitors; Fluctuations; Inductors; Inverters; Topology; Voltage control; boost converter; delta-connection; multilevel inverter; single DC source;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944458

Filename

5944458