Comparison of the DC/DC-Converters for Fuel Cell Applications

Authors: Oleksandr Krykunov

Abstract:

The source voltage of high-power fuel cell shows strong load dependence at comparatively low voltage levels. In order to provide the voltage of 750V on the DC-link for feeding electrical energy into the mains via a three phase inverter a step-up converter with a large step-up ratio is required. The output voltage of this DC/DC-converter must be stabile during variations of the load current and the voltage of the fuel cell. This paper presents the methods and results of the calculation of the efficiency and the expense for the realization for the circuits of the DC/DC-converter that meet these requirements.

Keywords: DC/DC-converter, calculation, efficiency, fuel cell.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1077509

References:

[1] E. Santi, D. Franzoni, D. Monti, A. Patterson, F. Ponsi, F. Barry "A fuel cell based uninterruptable power supply" IEEE Applied Power Electronics Specialist Conference, 2002, Proceedings on CD-ROM
[2] O. Krykunov, ÔÇ×Analysis of the Extended Forward Converter for Fuel Cell Applications", ISIE, 2007
[3] Robert W. Erickson, Fundamentals of Power Electro (Book style), University of Colorado, 1997
[4] T. A. Nergaard, J. F. Ferrell, L. G. Leslie, and J. S. Lai, "Design considerations for a 48V fuel cell to split single phase inverter system with ultra capacitor energy storage", IEEE Applied Power Electronics Specialist Conference, 2002
[5] T. Meyer, "DC/DC-Wandler mit kleiner Eingangsspannung f├╝r photovoltaische, elektrochemische und thermoelektrische Zellen", Fortschr.-Ber. VDI, R. 21, Nr. 288, D├╝sseldorf, VDI-Verlag, 2000
[6] H. Solmecke, "Optimierter Stromrichter f├╝r Brennstoffzellenanlagen" Dissertation, Hagen, 1998
[7] I. Merfert, O. Krykunov, A. Lindemann, "High-power tapped-inductor boost conevrter fot Fuel Cell Applications", PCIM, 2005
[8] Tarter, E. Ralph, ÔÇ×Solid-state power conversion handbook", 1993