Simulation Study of High Step-Up Quasi-Z-Source DC-DC Converter with Synchronous Rectification

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings 2014
Liisa Liivik, Dmitri Vinnikov, Jānis Zaķis

This paper discusses the performance improvement method of the recently popular galvanically isolated quasi-Zsource DC-DC converter. In order to decrease the conduction losses in the quasi-Z-source network and voltage doubler rectifier the replacement of diodes by the N-channel MOSFETs was analyzed. The proposed approach was validated by the computer simulations in PSIM environment with accurate models of the semiconductors based on the device datasheet values. Finally, the power losses and resulting efficiency of the proposed quasi-Zsource DC-DC converter with synchronous rectification were compared to those of the traditional topology.

Atslēgas vārdi
DC-DC power converters, Energy efficiency, Pulse width modulation converters
DOI
10.1109/RTUCON.2014.6998215

Liivik, L., Vinnikov, D., Zaķis, J. Simulation Study of High Step-Up Quasi-Z-Source DC-DC Converter with Synchronous Rectification. No: 2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON): Proceedings, Latvija, Rīga, 14.-14. oktobris, 2014. Riga: RTU Press, 2014, 34.-37.lpp. ISBN 978-1-4799-7460-3. e-ISBN 978-1-4799-7462-7. Pieejams: doi:10.1109/RTUCON.2014.6998215

Publikācijas valoda
English (en)