TY - GEN
T1 - Mode definition and operation strategies for secondary battery assisted hybrid-type DMFC systems
AU - Lee, Sang Cheol
AU - Chang, Jang Sook
AU - Lee, S. M.
AU - Park, Ju H.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77957878312&partnerID=8YFLogxK
U2 - 10.1109/ICCA.2010.5524414
DO - 10.1109/ICCA.2010.5524414
M3 - Conference contribution
AN - SCOPUS:77957878312
SN - 9781424451951
T3 - 2010 8th IEEE International Conference on Control and Automation, ICCA 2010
SP - 1944
EP - 1948
BT - 2010 8th IEEE International Conference on Control and Automation, ICCA 2010
T2 - 2010 8th IEEE International Conference on Control and Automation, ICCA 2010
Y2 - 9 June 2010 through 11 June 2010
ER -
