Analysis of the Extended Forward Converter for Fuel Cell Applications

Author

Krykunov, O.

Author_Institution

Otto-von-Guericke-Univ., Magdeburg

fYear

2007

fDate

4-7 June 2007

Firstpage

661

Lastpage

666

Abstract

The source voltage of high-power fuel cells shows strong load dependence at comparatively low voltage levels. In order to provide the voltage of 750 V on the DC-link for feeding electrical energy into the mains via a three-phase inverter a step- up converter with a large step ratio is required. The efficiency of this converter must be as high as possible and the cost must be as low as possible. To meet these requirements a new circuit of the DC/DC-converter is proposed. In this paper this circuit of the DC/DC-converter was compared with another circuits. This paper presents also a mathematical analysis of this DC/DC-converter and the simulation results to fit into a 5 kW electrical fuel cell system.

Keywords

DC-DC power convertors; fuel cells; invertors; DC-DC converter; electrical energy feeds; extended forward converter; fuel cells; power 5 kW; source voltage; step-up converter; three-phase inverter; voltage 750 V; Analytical models; Costs; Demagnetization; Equations; Equivalent circuits; Fuel cells; Galvanizing; Magnetization; Mathematical analysis; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2007. ISIE 2007. IEEE International Symposium on

Conference_Location

Vigo

Print_ISBN

978-1-4244-0754-5

Electronic_ISBN

978-1-4244-0755-2

Type

conf

DOI

10.1109/ISIE.2007.4374675

Filename

4374675