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Non-isolating DC/DC converter for a fuel cell powered aircraft

: Kreutzer, O.; Billmann, M.; Maerz, M.; Lange, A.

Postprint urn:nbn:de:0011-n-4675510 (523 KByte PDF)
MD5 Fingerprint: 5379c1e55c2ccf14dad2837b81a84331
Erstellt am: 23.5.2018

Institute of Electrical and Electronics Engineers -IEEE-; IEEE Industry Applications Society:
ESARS-ITEC 2016, International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference : 2nd-4th November 2016, Toulouse, France
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-0814-8
ISBN: 978-1-5090-0813-1
ISBN: 978-1-5090-0815-5 (Print)
International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS) <2016, Toulouse>
International Transportation Electrification Conference (ITEC) <2016, Toulouse>
European Commission EC
FP7-ICT; 608770; eDAS
European Commission EC
H2020; 653514; OSEM-EV
Optimised and Systematic Energy Management in Electric Vehicles
European Commission EC
H2020; 662192; 3Ccar
Integrated Components for Complexity Control in affordable electrified cars
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IISB ()

Fuel cells in aircraft applications are gaining more and more interest because of higher possible efficiency and increasing air pollution standards. A necessary supplement is an efficient, lightweight and reliable DC/DC-converter to adjust the weak fuel cell characteristic to the voltage level of buffer batteries and drive inverters. Cosmic radiation, condensation, strict EMI-limits and significantly increased creepage distances impair a light and efficient converter. This paper explains approaches to solve those technical difficulties, especially a way to fulfill EMI standards without a large and heavy EMI-filter and introduces the first converter's application, a fuel cell powered UAV. The converter is developed with a strictly scalable design. Therefore an up-rating to multi megawatt applications for larger aircraft is discussed and possible occurring challenges are evaluated.