A novel soft-switching inverter for high power application with simple control

Author

Shinsuke, Kadoi ; Miura, Yushi ; Ise, Toshifumi ; Hosokawa, Yasuhiko

Author_Institution

Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Suita, Japan

Volume

1

fYear

2012

fDate

2-5 June 2012

Firstpage

586

Lastpage

593

Abstract

A novel soft-switching inverter with regenerative snubber circuits is proposed. This inverter can be operated in soft-switching condition by simple control, without any additional complicated control. Having a passive clamp circuit, a maximum voltage across main switches is suppressed. In addition, voltage of each dc link capacitor is automatically balanced in a half of dc voltage. In this paper, soft-switching operations and other characteristics are descripted in detail. Numerical simulation and experiment with a 1.7 kVA three-phase model was conducted. Because there is undesirable voltage and current resonance due to parasitic components, measures to deal with these problems are also presented. RC snubbers were designed and applied to the experimental system to eliminate these oscillations.

Keywords

Capacitors; Clamps; Inductance; Inverters; Snubbers; Switches; High Power Applications; Inverter; Regenerative Snubber; Soft-Switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin, China

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6258811

Filename

6258811