TY - GEN
T1 - Design considerations of a voltage-fed full bridge DC-DC converter with high voltage gain for fuel cell applications
AU - Averberg, Andreas
AU - Mertens, Axel
PY - 2007
Y1 - 2007
N2 - Fuel cells in the kW range have a high output current and low output voltage. To connect them to the mains, a dc-dc converter with a high voltage gain and an inverter are needed. In this paper an investigation of the voltage-fed full bridge dc-dc converter with high voltage gain is presented. A detailed analysis of the different operating modes, the semiconductors' current and voltage stress, the switching losses and the transformer stress is given. The influence of diverse parameters like winding ratio, leakage inductance and output inductance on the operating behaviour, hence voltage gain and efficiency is stated out. The analytical results are compared with measurements taken from a 1.2 kW prototype. Finally, design criteria for the dc-dc converter are given to realise a high voltage gain and high efficiency.
AB - Fuel cells in the kW range have a high output current and low output voltage. To connect them to the mains, a dc-dc converter with a high voltage gain and an inverter are needed. In this paper an investigation of the voltage-fed full bridge dc-dc converter with high voltage gain is presented. A detailed analysis of the different operating modes, the semiconductors' current and voltage stress, the switching losses and the transformer stress is given. The influence of diverse parameters like winding ratio, leakage inductance and output inductance on the operating behaviour, hence voltage gain and efficiency is stated out. The analytical results are compared with measurements taken from a 1.2 kW prototype. Finally, design criteria for the dc-dc converter are given to realise a high voltage gain and high efficiency.
KW - DC power supply
KW - Design
KW - Efficiency
KW - Fuel cell system
KW - High frequency power converter
KW - Switched-mode power supply
UR - https://www.scopus.com/pages/publications/51049121545
U2 - 10.1109/EPE.2007.4417498
DO - 10.1109/EPE.2007.4417498
M3 - Conference contribution
AN - SCOPUS:51049121545
SN - 9075815115
SN - 9789075815115
T3 - 2007 European Conference on Power Electronics and Applications, EPE
BT - 2007 European Conference on Power Electronics and Applications, EPE
T2 - 2007 European Conference on Power Electronics and Applications, EPE
Y2 - 2 September 2007 through 5 September 2007
ER -