Title :
Analysis of the Extended Forward Converter for Fuel Cell Applications
Author_Institution :
Otto-von-Guericke-Univ., Magdeburg
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;
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
DOI :
10.1109/ISIE.2007.4374675
