A soft-switching interleaved three-level inverter

Author

Yisheng, Yuan ; Min, Chen ; Zhaoming, Qian

Author_Institution

Electr. Eng. Coll., East China Jiaotong Univ., Nanchang, China

fYear

2010

fDate

21-25 Feb. 2010

Firstpage

1503

Lastpage

1507

Abstract

In this paper, a soft-switching interleaved circuit applied in three-level inverters is proposed. An interleaved three-level inverter is realized by employing two interleaved power switches in parallel at the most upper and the lowest location in traditional three-level inverters. By further inserting a small current-limiting inductor in each interleaved switch branch, each interleaved power switch can realized zero-current switching on and a reduced reverse recovery current of the freewheeling diode. The Each operation stage and the soft-switching theory are elaborated. A 2 kVA experimental prototype is produced and the test waveforms verified the circuit available.

Keywords

invertors; switching convertors; zero current switching; ZCS; apparent power 2 kVA; current-limiting inductor; freewheeling diode; interleaved power switch; soft-switching interleaved three-level inverter; zero-current switching; Circuits; Diodes; Educational institutions; Filters; Inductors; Prototypes; Pulse width modulation inverters; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Conference_Location

Palm Springs, CA

ISSN

1048-2334

Print_ISBN

978-1-4244-4782-4

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2010.5433430

Filename

5433430