Auxiliary resonant DC link snubber assisted voltage-source soft switching inverter with space zero voltage vector generation method

Author

Kurokawa, M. ; Konishi, Y. ; Nakaoka, M.

Author_Institution

Div. of Electr. Syst. of Eng., Yamaguchi Univ., Japan

Volume

149

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

337

Lastpage

342

Abstract

The aim of the work is to improve the power conversion efficiency of a voltage-source three-phase inverter with a single active auxiliary resonant DC link snubber circuit (ARDCL). The operating principle and salient features of the ARDCL snubber circuit are described. An effective space voltage vector generation method is proposed for the zero voltage vector of a three-phase soft-switching inverter, which can reduce power losses in the ARDCL snubber circuit. The zero voltage holding interval in the DC bus-line of the three-phase inverter is controlled due to the generation method of the zero voltage vector. Experimental results confirm the relationship between the inverter power conversion efficiency and the proposed zero voltage vector generation method is implemented and evaluated from a practical point of view

Keywords

DC-AC power convertors; bipolar transistor switches; insulated gate bipolar transistors; invertors; losses; power bipolar transistors; power semiconductor switches; resonant power convertors; snubbers; switching circuits; ARDCL snubber circuit; DC bus line zero voltage holding interval; operating principle; power conversion efficiency improvement; power losses reduction; single active auxiliary resonant DC link snubber circuit; space zero voltage vector generation method; voltage-source three-phase soft-switching inverter;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:20020473

Filename

1041787