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A current fed step-up DC/DC converter is designed for fuel cell inverter applications, matching the low DC output voltage of hydrogen fuel cells to the utility grid AC voltage.

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Abstract

Current Fed Step-up DC/DC Converter for Fuel Cell Inverter Applications In order to use hydrogen fuel cells in domestic applications either as main power supply or backup source, their low DC output voltage has to be matched to the level and frequency of the utility grid AC voltage. Such power converter systems usually consist of a DC-DC converter and a DC-AC inverter. Comparison of different current fed step-up DC/DC converters is done in this paper and a double inductor step-up push-pull converter investigated, presenting simulation and experimental results. The converter is elaborated for 1200 W power to match the rated power of the proton exchange membrane (PEM) fuel cell located in hydrogen fuel cell research laboratory of Riga Technical University.

Key findings

  • The double inductor step-up push-pull converter is investigated and compared with other current fed step-up DC/DC converters.
  • Simulation and experimental results are presented for a 1200 W power converter, matching the rated power of a PEM fuel cell.
  • The converter is suitable for domestic applications as a main power supply or backup source.

Keywords

Boost converterĆuk converterForward converterFlyback converterElectrical engineeringConverters

Identifiers

DOI
10.2478/v10144-009-0025-z
Journal
Scientific Journal of Riga Technical University. Power and Electrical Engineering
Year
2008