Power loss reduction techniques for three phase high frequency link DC-AC converter

Author

Yamato, Ikuo ; Tokunaga, Norikazu

Author_Institution

Hitachi, Ltd., Ibaraki, Japan

fYear

1993

fDate

20-24 Jun 1993

Firstpage

663

Lastpage

668

Abstract

A three phase high frequency link DC-AC power converter suitable for UPS (uninterruptible power system) applications is described. This converter consists of a high frequency inverter, a high frequency transformer, and a cycloconverter. Power loss reduction techniques for the cycloconverter are discussed, which include zero voltage switching, source commutation, and a voltage clamper. Fabrication of a 3 kVA high frequency link DC-AC power converter is described and its loss reduction effect is demonstrated

Keywords

DC-AC power convertors; commutation; cycloconvertors; high-frequency transformers; invertors; losses; power transformers; switching circuits; uninterruptible power supplies; 3 kVA; DC-AC power converter; HF-link; UPS; ZVS; applications; cycloconverter; fabrication; high frequency inverter; high frequency transformer; power loss reduction; source commutation; three phase; uninterruptible power system; voltage clamper; zero voltage switching; Bridge circuits; Fabrication; Frequency conversion; Insulated gate bipolar transistors; Laboratories; Power conversion; Pulse width modulation; Pulse width modulation inverters; Uninterruptible power systems; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-1243-0

Type

conf

DOI

10.1109/PESC.1993.471996

Filename

471996