Abstract
A new single-switch non-isolated dc–dc converter with high-voltage gain and reduced semiconductor voltage stress is proposed in this paper. The proposed topology is derived from the conventional boost converter integrated with self-lift Sepic converter for providing high voltage gain without extreme switch duty-cycle. The reduced voltage stress across the power devices enables the use of a lower voltage and RDS-ON MOSFET switch, and Schottky rectifiers for alleviating the diode’s reverse-recovery current problem, leading to a further reduction in the switching and conduction losses. Furthermore, the “near-zero” ripple current can be achieved at the input side of the converter which will help improve the fuel cell stack life cycle. The principle of operation and theoretical analysis are performed. Simulation and experimental results of a 100 W/240 Vdc output with 24 Vdc input voltage are provided to evaluate the performance of the proposed scheme.
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Al-Saffar, M.A. (2014). High Voltage Gain DC–DC Converter with Low Input Current Ripple for Fuel Cell Source. In: Hamdan, M., Hejase, H., Noura, H., Fardoun, A. (eds) ICREGA’14 - Renewable Energy: Generation and Applications. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-319-05708-8_14
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DOI: https://doi.org/10.1007/978-3-319-05708-8_14
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