A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control

The increasing demand for renewable energy accounts for the DC microgrid concept, facilitating the integration of photovoltaic (PV) modules and battery energy systems (BESS) into a common DC bus. In light of this, bipolar DC-DC converters can result in two symmetric DC buses that provide more flexib...

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Main Authors: Md Abdullah Al-Hysam, Dávid Raisz
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Energy Conversion and Management: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590174524003350
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author Md Abdullah Al-Hysam
Dávid Raisz
author_facet Md Abdullah Al-Hysam
Dávid Raisz
author_sort Md Abdullah Al-Hysam
collection DOAJ
description The increasing demand for renewable energy accounts for the DC microgrid concept, facilitating the integration of photovoltaic (PV) modules and battery energy systems (BESS) into a common DC bus. In light of this, bipolar DC-DC converters can result in two symmetric DC buses that provide more flexibility. This article presents a hybrid bipolar converter by merging a single-ended primary-inductor converter (SEPIC) and a Cuk converter with a switched-inductor configuration in lieu of the input inductors for gain enhancement. The architecture holds the advantages of both the SEPIC and Cuk converters and has one active switch, resulting in a simple control circuitry. Incorporating the average current mode (ACM) control strategy, the proposed converter is capable of providing a bipolar output, each having a higher voltage gain than the conventional converters. A 510 W prototype, validated in a power hardware-in-the-loop (PHIL) laboratory environment, demonstrated a peak efficiency of 97.14 %, close to the theoretical projection of 99 %. The proposed topology contributes to advancing clean energy technologies by enabling efficient and reliable energy conversion for renewable-based microgrids.
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institution Kabale University
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publishDate 2025-01-01
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series Energy Conversion and Management: X
spelling doaj-art-5d18af6f45344b0e933bf31ebcc4574a2025-01-12T05:25:43ZengElsevierEnergy Conversion and Management: X2590-17452025-01-0125100857A hybrid high-gain bipolar converter for LVDC microgrid with average current mode controlMd Abdullah Al-Hysam0Dávid Raisz1Corresponding author.; Department of Electric Power Engineering, Budapest University of Technology and Economics, Budapest, HungaryDepartment of Electric Power Engineering, Budapest University of Technology and Economics, Budapest, HungaryThe increasing demand for renewable energy accounts for the DC microgrid concept, facilitating the integration of photovoltaic (PV) modules and battery energy systems (BESS) into a common DC bus. In light of this, bipolar DC-DC converters can result in two symmetric DC buses that provide more flexibility. This article presents a hybrid bipolar converter by merging a single-ended primary-inductor converter (SEPIC) and a Cuk converter with a switched-inductor configuration in lieu of the input inductors for gain enhancement. The architecture holds the advantages of both the SEPIC and Cuk converters and has one active switch, resulting in a simple control circuitry. Incorporating the average current mode (ACM) control strategy, the proposed converter is capable of providing a bipolar output, each having a higher voltage gain than the conventional converters. A 510 W prototype, validated in a power hardware-in-the-loop (PHIL) laboratory environment, demonstrated a peak efficiency of 97.14 %, close to the theoretical projection of 99 %. The proposed topology contributes to advancing clean energy technologies by enabling efficient and reliable energy conversion for renewable-based microgrids.http://www.sciencedirect.com/science/article/pii/S2590174524003350SEPICCukPHILPVBESSHigh-gain
spellingShingle Md Abdullah Al-Hysam
Dávid Raisz
A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
Energy Conversion and Management: X
SEPIC
Cuk
PHIL
PV
BESS
High-gain
title A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
title_full A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
title_fullStr A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
title_full_unstemmed A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
title_short A hybrid high-gain bipolar converter for LVDC microgrid with average current mode control
title_sort hybrid high gain bipolar converter for lvdc microgrid with average current mode control
topic SEPIC
Cuk
PHIL
PV
BESS
High-gain
url http://www.sciencedirect.com/science/article/pii/S2590174524003350
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