TY - GEN
T1 - Experimental evaluation of a soft-switching DC/DC converter for fuel cell vehicle applications
AU - Su, Gui Jia
AU - Peng, Fang Z.
AU - Adams, Donald J.
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2002
Y1 - 2002
N2 - A soft-switched, isolated bi-directional DC/DC converter has been developed for fuel cell powered electric vehicles (FCPEV), in which the 12 V battery for the vehicle accessory loads is also used to start up the fuel cells and to store the energy captured during regenerative braking. The DC/DC converter interfaces the low voltage battery to the fuel cell powered higher voltage DC bus system (255 V ∼ 425 V). Dual half-bridges interconnected through a transformer are employed to minimize the number of switching devices and their associated gate drive components. The transformer provides voltage level matching and galvanic isolation for safety requirements. Snubber capacitors and the transformer leakage inductance are utilized to achieve zero-voltage-switching (ZVS). Therefore, no extra resonant components are required for ZVS, further reducing component count. The inherent soft-switching capability and the low component count of the converter allows efficient power conversion and compact packaging. A prototype was built and successfully tested. This paper presents design considerations and testing data to evaluate the prototype's performance against the requirements for FCPEV applications.
AB - A soft-switched, isolated bi-directional DC/DC converter has been developed for fuel cell powered electric vehicles (FCPEV), in which the 12 V battery for the vehicle accessory loads is also used to start up the fuel cells and to store the energy captured during regenerative braking. The DC/DC converter interfaces the low voltage battery to the fuel cell powered higher voltage DC bus system (255 V ∼ 425 V). Dual half-bridges interconnected through a transformer are employed to minimize the number of switching devices and their associated gate drive components. The transformer provides voltage level matching and galvanic isolation for safety requirements. Snubber capacitors and the transformer leakage inductance are utilized to achieve zero-voltage-switching (ZVS). Therefore, no extra resonant components are required for ZVS, further reducing component count. The inherent soft-switching capability and the low component count of the converter allows efficient power conversion and compact packaging. A prototype was built and successfully tested. This paper presents design considerations and testing data to evaluate the prototype's performance against the requirements for FCPEV applications.
UR - http://www.scopus.com/inward/record.url?scp=4544368446&partnerID=8YFLogxK
U2 - 10.1109/PET.2002.1185548
DO - 10.1109/PET.2002.1185548
M3 - Conference contribution
AN - SCOPUS:4544368446
T3 - IEEE Workshop on Power Electronics in Transportation
SP - 39
EP - 44
BT - IEEE Power Electronics in Transportation, PET 2002
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Workshop on Power Electronics in Transportation, PET 2002
Y2 - 24 October 2002 through 25 October 2002
ER -