Quasi-resonant soft-switching inverter for low and high power factor loads

Author

Behera, S. ; Das, S.P. ; Doradla, S.R.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India

Volume

151

Issue

4

fYear

2004

fDate

7/7/2004 12:00:00 AM

Firstpage

451

Lastpage

459

Abstract

A novel quasi-resonant three-phase inverter is proposed for 400 or 50 Hz low and high power factor loads. The proposed quasi-resonant DC link consists of a total of four switches, two resonant inductors and a capacitor. Two switches are connected in series with the resonant DC link (RDCL) and the other two are connected across the RDCL. The quasi-resonant link topology is versatile and the operation is such that the DC link voltage is clamped to the source voltage. The soft-switching operation of the quasi-resonant inverter is explained in terms of modes for both positive and negative link current. The quasi-resonant inverter is operated under modified space vector modulation incorporating soft switching. SABER simulation of the resonant link inverter and subsequent experimental verification show good agreement.

Keywords

network topology; power capacitors; power engineering computing; power factor; power inductors; power semiconductor switches; resonant invertors; switching convertors; 400 Hz; 50 Hz; DC link voltage clamping; SABER simulation; capacitor; power factor loads; quasiresonant link topology; quasiresonant soft-switching inverter; resonant DC link; resonant inductors; space vector modulation; switches; three-phase inverter;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:20040355

Filename

1305514