Lossless capacitive snubber assisted auxiliary resonant DC link voltage source soft switching inverter

Author

Kurokawa, M. ; Inaba, C.Y. ; Konishi, Y. ; Iwamoto, H. ; Nakaoka, M.

Author_Institution

Graduate Sch. of Sci. & Eng., Yamaguchi Univ., Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

1233

Abstract

This paper presents a voltage source-type soft switching space voltage vector modulated inverter using the latest IGBTs which incorporates two soft commutation techniques; the first one is the utilization of the active auxiliary resonant DC link snubber circuit and the second one is that, in some cases soft switching can be achieved using only the lossless snubber capacitor (LLSC) independently. The soft commutation operating principle of the proposed LLSC-assisted ARDCL is discussed. In addition, the effectiveness of this improved soft switching scheme is proved on the basis of simulation data and experimental results

Keywords

DC-AC power convertors; bipolar transistor switches; insulated gate bipolar transistors; invertors; power bipolar transistors; resonant power convertors; snubbers; switching circuits; auxiliary resonant DC link voltage source soft switching inverter; e; lossless snubber capacitor; operating principle; power IGBTs; soft commutation; space voltage vector modulation; Active filters; Control systems; Frequency; Pulse width modulation inverters; RLC circuits; Resonance; Snubbers; Switched capacitor circuits; Switching circuits; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.880487

Filename

880487