Switched sliding-mode control for ZCS series-resonant AC/DC converter

Author

Moon, G.W. ; Jung, Y.-S. ; Youn, M.J.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

142

Issue

5

fYear

1995

fDate

9/1/1995 12:00:00 AM

Firstpage

297

Lastpage

307

Abstract

A combined buck and boost zero-current-switched series-resonant AC/DC power converter for DC output voltage regulation with a high power factor is proposed. The proposed single-phase AC/DC power converter enables zero current switching operation of all the power devices, allowing the circuit to operate at high switching frequencies and high power levels. A dynamic model for this AC/DC power converter is developed in a discrete-time domain and an analysis of the internal operational characteristics is explored. Based on this analysis, a switched sliding-mode control technique is investigated with its advantages over the other type of current-control technique being discussed. With the proposed control techniques, unity power factor without current overshoot and a wide output voltage range can be obtained

Keywords

AC-DC power convertors; control system analysis; control system synthesis; electric current control; equivalent circuits; power factor; resonant power convertors; switching circuits; variable structure systems; voltage control; DC output voltage regulation; control design; control simulation; current control technique; discrete-time domain; internal operational characteristics; output voltage range; power factor; series-resonant AC/DC power converter; switched sliding-mode control; switching frequency; zero current switching;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19952117

Filename

466745