Zero-voltage and Zero-current Switched Fuel-cell Powered DC-to-DC Converter

Author

Song, Sung-Geun ; Kang, Feel-Soon ; Park, Sung-Jun ; Moon, Chea-Joo ; Son, Gyoung-Jong

Author_Institution

Chonnam Nat. Univ., Gwangju

Volume

2

fYear

2007

fDate

13-14 July 2007

Firstpage

1

Lastpage

4

Abstract

This paper presents a novel efficient fuel-cell powered converter. The power converter requires a special circuit configuration and control techniques to compensate the wide voltage variation because the output of fuel-cell has broad voltage ranges. So the proposed converter integrates a buck converter with a push-pull converter to be suitable for the fuel-cell as an input source. In addition, to increase the system efficiency each converter employs an auxiliary circuit for zero-voltage and zero-current switching. Operational principle is given in detail. The validity of the proposed fuel-cell powered converter is verified by experiments based on a 1 [kW] grid-connected prototype.

Keywords

DC-DC power convertors; fuel cells; zero current switching; zero voltage switching; DC to DC converter; buck converter; fuel cell powered converter; push-pull converter; system efficiency; voltage variation; zero current switched converter; zero voltage switched converter; Buck converters; Circuits; DC-DC power converters; Inverters; Power generation; Prototypes; Switches; Switching converters; Voltage control; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Circuits and Systems, 2007. ISSCS 2007. International Symposium on

Conference_Location

Iasi

Print_ISBN

1-4244-0969-1

Electronic_ISBN

1-4244-0969-1

Type

conf

DOI

10.1109/ISSCS.2007.4292782

Filename

4292782