TY - GEN
T1 - Study on the characteristics of boost converter in hybrid fuel cell city bus
AU - Huang, Yong
AU - Zeng, Fan
AU - Zhou, Qiang
AU - Chen, Quanshi
PY - 2005
Y1 - 2005
N2 - In a hybrid power system where a fuel cell engine and a group of Ni-H batteries are connected together by a bi-directional DC-DC converter, the boosting characteristics of the converter are studied. On the base of analyzing the U-I characteristic of the fuel cell engine, two kinds of characteristics of boost converter, linear and non-linear, are proposed. By establishing the mathematical models between voltage and current, also power and voltage, the output power of the hybrid system under each characteristic is studied, showing that with the non-linear U-I characteristic, the output power of boosting DC-DC converter adaptively follows the voltage of the fuel cell engine, obtaining stable power process. The non-linear characteristic has been validated by experiments and a hybrid power system with it has been applied in the fuel cell city bus developed by Tsinghua University.
AB - In a hybrid power system where a fuel cell engine and a group of Ni-H batteries are connected together by a bi-directional DC-DC converter, the boosting characteristics of the converter are studied. On the base of analyzing the U-I characteristic of the fuel cell engine, two kinds of characteristics of boost converter, linear and non-linear, are proposed. By establishing the mathematical models between voltage and current, also power and voltage, the output power of the hybrid system under each characteristic is studied, showing that with the non-linear U-I characteristic, the output power of boosting DC-DC converter adaptively follows the voltage of the fuel cell engine, obtaining stable power process. The non-linear characteristic has been validated by experiments and a hybrid power system with it has been applied in the fuel cell city bus developed by Tsinghua University.
KW - Fuel cell engine
KW - Hybrid power system
KW - Power converter
KW - U-I characteristic
UR - https://www.scopus.com/pages/publications/33847321539
UR - https://www.scopus.com/pages/publications/33847321539#tab=citedBy
U2 - 10.1109/ICIT.2005.1600681
DO - 10.1109/ICIT.2005.1600681
M3 - Conference contribution
AN - SCOPUS:33847321539
SN - 0780394844
SN - 9780780394841
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 453
EP - 458
BT - 2005 IEEE International Conference on Industrial Technology, ICIT 2005
T2 - 2005 IEEE International Conference on Industrial Technology, ICIT 2005
Y2 - 14 December 2005 through 17 December 2005
ER -