Title :
Power loss reduction techniques for three phase high frequency link DC-AC converter
Author :
Yamato, Ikuo ; Tokunaga, Norikazu
Author_Institution :
Hitachi, Ltd., Ibaraki, Japan
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;
Conference_Titel :
Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-1243-0
DOI :
10.1109/PESC.1993.471996
