The reduction of CO2 emissions, and therefore the increase of ecoefficiency, is one of the most important challenges for the aircraft industry. An approach could be the more electric aircraft concept. Within this concept, the traditional auxiliary power unit could be replaced by a multifunctional fuel cell system. For integration into the ±270 Vdc grid, it is necessary to convert the load-dependent fuel cell output voltage using a direct current-to-direct current converter. The converter usually is designed for the maximum available fuel cell power. This paper deals with an adaption of the fuel cell output voltage to achieve downsizing of the converter. The proposed converter structure with an additional bypass has weight-saving effects and improves overall system efficiency.
Fuel Cell System Optimization Using Bypass Converters
IEEE Transactions on Aerospace and Electronic Systems ; 50 , 1 ; 170-179
2014-01-01
1831977 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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