A multi-port high step-up converter integrating coupled inductor and high-frequency transformer with hybrid isolated/non-isolated outputs for renewable energy-based DC micro grids

Seyed Majid Hashemzadeh and Binxin Zhu

Energy, 2025, vol. 335, issue C

Abstract: This paper introduces a novel dual-input multi-output (DIMO) DC-DC converter for high step-up applications in renewable energy-based DC micro grids. The topology utilizes two magnetically coupled inductors whose primary windings are connected to separate input sources. Their secondary windings are integrated with voltage multiplier cells (VMCs) to achieve high voltage gain while reducing stress on semiconductor devices. The converter delivers power to three outputs: two non-isolated ports that share a common ground with the inputs, and one isolated port achieved via a high-frequency transformer (HFT). The operational principles, steady-state analysis, and efficiency are examined. A hardware prototype is developed, and both simulation and experimental results including maximum power point tracking (MPPT) performance to validate the design. The efficiency is obtained 93.21 % at rated power of 554 W.

Keywords: Renewable energy; DC-DC converter; High frequency transformer; High step-up; Multi-ports; Micro grid; MPPT (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544225039921
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:335:y:2025:i:c:s0360544225039921

DOI: 10.1016/j.energy.2025.138350

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().