Three-Phase (LC)(L)-Type Series-Resonant Converter With Capacitive Output Filter

Author

Almardy, Mohamed ; Bhat, Ashoka K S

Author_Institution

Dept. of Electr. & Comput. En gineering, Univ. of Victoria, Victoria, BC, Canada

Volume

26

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1172

Lastpage

1183

Abstract

This paper presents a three-phase (LC)(L)-type dc-dc series-resonant converter with capacitive output filter. Operation of the converter has been presented using the operating waveforms and equivalent-circuit diagrams during different intervals. An approximate analysis is used, and design procedure is presented with a design example. Intusoft simulation results for the designed converter are given for input voltage and load variations. Experimental results obtained with a 300-W converter are presented. Major advantages of this converter are the leakage and magnetizing inductances of the high-frequency transformer that are used as a part of resonant circuit, and the output-rectifier voltage is clamped to the output voltage. Also, the converter operates in soft switching for the inverter switches with a narrow frequency control range and the tank current decreases with the load current.

Keywords

DC-DC power convertors; approximation theory; filters; high-frequency transformers; resonant power convertors; switching convertors; approximate analysis; capacitive output filter; equivalent-circuit diagrams; frequency control; high-frequency transformer; inverter switches; output-rectifier voltage; power 300 W; three-phase-type DC-DC series-resonant converter; Converters; Hafnium; Inductance; Inductors; Magnetic separation; Rectifiers; Zero voltage switching; (LC)(L) type; Approximate analysis; three phase; zero-voltage switching (ZVS);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2076365

Filename

5571009