Design of a Step-Up DC–DC Converter for Standalone Photovoltaic Systems with Battery Energy Storages

Yun-Gyeong Oh; Woo-Young Choi; Jung-Min Kwon

doi:10.3390/en15010044

Energies (Dec 2021)

Design of a Step-Up DC–DC Converter for Standalone Photovoltaic Systems with Battery Energy Storages

Yun-Gyeong Oh,
Woo-Young Choi,
Jung-Min Kwon

Affiliations

Yun-Gyeong Oh: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Korea
Woo-Young Choi: Division of Electronic Engineering, Jeonbuk National University, Jeonju 54896, Korea
Jung-Min Kwon: Department of Electrical Engineering, Hanbat National University, Daejeon 34158, Korea

DOI: https://doi.org/10.3390/en15010044
Journal volume & issue: Vol. 15, no. 1
p. 44

Abstract

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This paper proposes a step-up DC–DC converter for a power electronic circuit for standalone photovoltaic systems with battery energy storages. The proposed DC–DC converter effectively converts low DC battery voltage into high DC-link voltage. It operates with soft-switching characteristics, which can reduce switching power losses. The proposed converter operates without output voltage feedback, which simplifies its control design. The operation principle of the proposed converter was described, along with the overall system configuration. The experimental results were discussed for the 500-W prototype system using a 12-V lead-acid battery.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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