elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Fuel cell and Li-ion battery direct hybridization system for aircraft applications

Nishizawa, Akira and Kallo, Josef and Garrot, Olivier and Weiss-Ungethüm, Jörg (2013) Fuel cell and Li-ion battery direct hybridization system for aircraft applications. Journal of Power Sources, 222, pp. 294-300. Elsevier. DOI: 10.1016/j.jpowsour.2012.09.011 ISSN 0378-7753

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.jpowsour.2012.09.011

Abstract

The concept of a passive hybrid system consisting of fuel cell stacks, Li-ion battery packs, and two diodes was tested. The diodes take the place of the DC/DC converter that is usually used to align fuel cell and battery voltages, thereby directly connecting the fuel cell and the battery. Prototype equipment was built for collecting characteristic data on the static and dynamic behavior of the hybrid system. The measurement results indicate that increasing the operation efficiency and simplifying the system were possible by applying the direct hybridization concept. The dynamic behavior results showed an interesting combination of output signals from the fuel cell stack and the battery pack. The quick response of the battery output completely compensated for the delay in fuel cell output response, indicating that the direct hybrid system is also applicable to high-frequency electric loads such as brushless DC motors. The ability to recharge without a DC/DC converter was also successfully validated for the direct hybrid system. From the measurement results, the design method, and the system sizing, this passive hybrid system appears promising for application in the Antares DLR-H2 electric aircraft test bed.

Item URL in elib:https://elib.dlr.de/78331/
Document Type:Article
Title:Fuel cell and Li-ion battery direct hybridization system for aircraft applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nishizawa, Akiranishizawa.akira (at) jaxa.jpUNSPECIFIED
Kallo, Josefjosef.kallo (at) dlr.deUNSPECIFIED
Garrot, Olivierolivier.garrot (at) dlr.deUNSPECIFIED
Weiss-Ungethüm, Jörgjoerg.weiss-ungethuem (at) dlr.deUNSPECIFIED
Date:January 2013
Journal or Publication Title:Journal of Power Sources
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:222
DOI :10.1016/j.jpowsour.2012.09.011
Page Range:pp. 294-300
Editors:
EditorsEmail
Dyer, C.K.UNSPECIFIED
Rand, D.A.J.UNSPECIFIED
Ogumi, Z.UNSPECIFIED
Scrosati, B.UNSPECIFIED
Moseley, P.UNSPECIFIED
Publisher:Elsevier
ISSN:0378-7753
Status:Published
Keywords:Fuel cell; Li-ion battery; Hybrid system; Electric airplane
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Projekt Fahrzeugenergiesysteme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Weiss-Ungethüm, Jörg
Deposited On:13 Nov 2012 11:37
Last Modified:10 Jan 2019 15:48

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.