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Design and implementation a single-switch step-up dc-dc converter based on cascaded boost and luo converters

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Version 2 2024-06-06, 01:50
Version 1 2022-04-01, 08:51
journal contribution
posted on 2024-06-06, 01:50 authored by H Gholizadeh, R Sharifi Shahrivar, MR Hashemi, E Afjei, SA Gorji
We designed and implemented a single-switch step-up DC-DC converter based on cascaded boost and Luo converters. The proposed converter demonstrated a quadratic voltage gain and a high efficiency, which makes it suitable for renewable energy applications, where a high voltage gain ratio is desired without imposing a high number of bulky items or employing a high duty cycle of the active switches. This converter benefits from the continuity of the input current waveform, which equips the maximum utilisation of renewable energy sources. While a transformer-less high voltage-gain was achieved, the voltage and current stresses of the power switch and diodes were kept low in comparison with the existing quadratic DC-DC converters. We analysed the converter in both continuous and discontinuous conduction modes. A non-ideal model of components was considered for power loss and efficiency calculations and comparisons. Finally, the simulation results were extracted with PLECS and validated with experiments on a 120 W prototype.

History

Journal

Energies

Volume

14

Article number

ARTN 3584

Pagination

1 - 18

Location

Basel, Switzerland

eISSN

1996-1073

Language

English

Publication classification

C1.1 Refereed article in a scholarly journal

Issue

12

Publisher

MDPI

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