Analysis of DC/DC Converter Efficiency for Energy Storage System Based on Bidirectional Fuel Cells

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1829 Downloads (Pure)

Abstract

Renewable energy sources are fluctuating depending on the availability of the energy source. For this reason, energy storage is becoming more important and bidirectional fuel cells represent an attractive technology. Fuel cells require highcurrent low-voltage dc-dc or dc-ac converters as power interface to the grid. In power electronics, the converter efficiency is characterized at fixed operating voltage for various output power. This type of characterization is not suitable for fuel cells, since as the power from the fuel cell increases, the cell voltage decreases. This paper analyses how the fuel cell I-V characteristics influences the power electronics converter efficiency and their consequence on the overall system. A loaddependent efficiency curve is presented based on experimental results from a 6 kW dc-dc converter prototype including the most suitable control strategy which maximizes the dc-dc conversion efficiency.
Original languageEnglish
Title of host publicationProceedings of the 2013 4th IEEE PES Innovative Smart Grid Technologies Europe
Number of pages5
PublisherIEEE
Publication date2013
ISBN (Print)978-1-4799-2984-9
Publication statusPublished - 2013
Event2013 4th IEEE PES Innovative Smart Grid Technologies Europe - Technical University of Denmark (DTU), Lyngby, Denmark
Duration: 6 Oct 20139 Oct 2013
Conference number: 4
http://www.ieee-isgt-2013.eu/

Conference

Conference2013 4th IEEE PES Innovative Smart Grid Technologies Europe
Number4
LocationTechnical University of Denmark (DTU)
CountryDenmark
CityLyngby
Period06/10/201309/10/2013
Internet address

Keywords

  • Fuel cells
  • Energy storage
  • Smart grids
  • Dc-dc power converters
  • Energy efficiency

Fingerprint Dive into the research topics of 'Analysis of DC/DC Converter Efficiency for Energy Storage System Based on Bidirectional Fuel Cells'. Together they form a unique fingerprint.

Cite this