Bilateral series resonant inverter for high frequency link UPS

Author

Chung, Yong-Ho ; Shin, Bong-Soo ; Cho, Gyu-Hyeong

Author_Institution

Goldstar Ind. Syst. Co. Ltd., Kyongki-Do, South Korea

fYear

1989

fDate

26-29 Jun 1989

Firstpage

83

Abstract

A description is given of a bilateral series-resonant inverter for high-frequency link uninterruptible power supply. The inverter consists of a zero-current-switched series-resonant power converter, a high-frequency transformer, and a zero-current-switched cycloconverter, whereby bidirectional power flow is possible and high efficiency is obtained. The output voltage is regulated by controlling the resonant tank energy, and the switching pattern of the cycloconverter is fixed to obtain the high-frequency transformer. A novel control scheme to minimize the output ripple voltage is suggested and verified through computer simulation, and the effects of the circuit parameters on the output voltage ripple are discussed

Keywords

cycloconvertors; digital simulation; high-frequency transformers; invertors; power engineering computing; uninterruptible power supplies; UPS; bidirectional power flow; bilateral series-resonant inverter; computer simulation; control; cycloconverter; efficiency; high frequency link; high-frequency transformer; power converter; ripple voltage; switching pattern; tank energy; uninterruptible power supply; zero current switching; Circuit faults; Frequency conversion; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switching circuits; Switching converters; Uninterruptible power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE

Conference_Location

Milwaukee, WI

Type

conf

DOI

10.1109/PESC.1989.48476

Filename

48476