A hybrid cascade asymmetrical multilevel converter for high power applications

Author

Han, Jingang ; Tang, Tianhao ; Liu, Chaohou ; Pu, Boyu ; Xu, Yao

Author_Institution

Dept. of Electr. Eng., Shanghai Maritime Univ., Shanghai, China

fYear

2009

fDate

5-8 July 2009

Firstpage

489

Lastpage

493

Abstract

In this paper, a novel hybrid cascade asymmetrical multilevel converter is proposed. The converter is based on connection of an asymmetric multilevel converter and an H-bridge converter. The multilevel waveform is synthesized by adding of each converter output voltage. The principle of the converter is analyzed. However the new scheme requires fixed floating supplies. Selective harmonic elimination method is used to eliminate the specified harmonics in the output voltage. Then the switching angles are computed to eliminate the low order harmonics in theory. Experimental results are presented and verify the proposed method.

Keywords

bridge circuits; harmonics suppression; power conversion harmonics; switching convertors; H-bridge converter; fixed floating supplies; high-power application; hybrid cascade asymmetrical multilevel converter; multilevel waveform; selective harmonic elimination method; switching angle; Bridge circuits; Capacitors; Chaos; Frequency; Industrial electronics; Leg; Semiconductor diodes; Switches; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2009. ISIE 2009. IEEE International Symposium on

Conference_Location

Seoul

Print_ISBN

978-1-4244-4347-5

Electronic_ISBN

978-1-4244-4349-9

Type

conf

DOI

10.1109/ISIE.2009.5214292

Filename

5214292