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Mode definition and operation strategies for secondary battery assisted hybrid-type DMFC systems

Title
Mode definition and operation strategies for secondary battery assisted hybrid-type DMFC systems
Authors
Lee, SangCheolChang, JangSookLee, S.M.Park, Ju H.
DGIST Authors
Lee, SangCheol; Chang, JangSook
Issue Date
2010
Citation
2010 8th IEEE International Conference on Control and Automation, ICCA 2010, 1944-1948
Type
Conference
Article Type
Conference Paper
ISBN
9780000000000
Abstract
In relatively small allowable volume fuel cells are unable to provide the average power and essentially high peak power demanded by specific electric load. Hybrid-type direct methanol fuel cell (DMFC) systems composed of fuel cells and secondary batteries could combine the high power density of clean fuel cells and the high energy density of convenient batteries which exist already within the original system. This paper presents a study on operational strategies for passive power sharing in such a hybrid fuel cell/battery power source and external adaptor. We define the eight operational modes and specify the condition on which the mode transitions occur. Also, emergency mode is defined and activated at each abnormal condition. To implementation purpose four electric switches are appended at specific power paths, i.e. fuel cell stack output, secondary battery output, electric load input, and charger input. © 2010 IEEE.
URI
http://hdl.handle.net/20.500.11750/3943
DOI
10.1109/ICCA.2010.5524414
Publisher
Institute of Electrical and Electronics Engineers Inc.
Related Researcher
Files:
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Collection:
ETC2. Conference Papers


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