Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications

Abstract This paper introduces a dual‐input single‐output (DISO) non‐isolated DC–DC converter with the capability to accommodate multiple input ports. It supports both bidirectional and unidirectional power flows. The proposed converter employs the switched‐capacitors (SC) technique, resulting in a...

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Main Authors: Farid Mohammadi, Amir Khorsandi
Format: Article
Language:English
Published: Wiley 2024-02-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12646
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author Farid Mohammadi
Amir Khorsandi
author_facet Farid Mohammadi
Amir Khorsandi
author_sort Farid Mohammadi
collection DOAJ
description Abstract This paper introduces a dual‐input single‐output (DISO) non‐isolated DC–DC converter with the capability to accommodate multiple input ports. It supports both bidirectional and unidirectional power flows. The proposed converter employs the switched‐capacitors (SC) technique, resulting in a high‐ voltage transfer gain. Although the use of the SC technique leads to discontinuous input current, this issue has been addressed by incorporating an inductor at the input side. The DISO high‐voltage gain converter offers flexible control options, reduces current and voltage stress on semiconductors, and imposes no duty cycle limitations due to the proposed switching methods. Furthermore, when Port 2 fails, the proposed converter can transfer energy to the load by sources in Port 1 without interruption. The steady‐state model and small‐signal analysis (SSA) of the proposed converter are examined at continuous conduction mode (CCM). To evaluate accurately, the proposed converter is compared with the recently presented converters based on important characteristics. Additionally, a comprehensive power loss analysis is performed. Following the design specifications, an evaluation and testing of a prototype are conducted to verify the feasibility and performance of the converter.
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spelling doaj.art-828948dcd6fe4a19b5afb1d3d4bb03872024-02-02T06:22:26ZengWileyIET Power Electronics1755-45351755-45432024-02-0117233734910.1049/pel2.12646Dual‐input single‐output high step‐up DC–DC converter for renewable energy applicationsFarid Mohammadi0Amir Khorsandi1Department of Electrical Engineering Amirkabir University of Technology Tehran IranDepartment of Electrical Engineering Amirkabir University of Technology Tehran IranAbstract This paper introduces a dual‐input single‐output (DISO) non‐isolated DC–DC converter with the capability to accommodate multiple input ports. It supports both bidirectional and unidirectional power flows. The proposed converter employs the switched‐capacitors (SC) technique, resulting in a high‐ voltage transfer gain. Although the use of the SC technique leads to discontinuous input current, this issue has been addressed by incorporating an inductor at the input side. The DISO high‐voltage gain converter offers flexible control options, reduces current and voltage stress on semiconductors, and imposes no duty cycle limitations due to the proposed switching methods. Furthermore, when Port 2 fails, the proposed converter can transfer energy to the load by sources in Port 1 without interruption. The steady‐state model and small‐signal analysis (SSA) of the proposed converter are examined at continuous conduction mode (CCM). To evaluate accurately, the proposed converter is compared with the recently presented converters based on important characteristics. Additionally, a comprehensive power loss analysis is performed. Following the design specifications, an evaluation and testing of a prototype are conducted to verify the feasibility and performance of the converter.https://doi.org/10.1049/pel2.12646DC–DC power convertorspower conversionpower convertorspower electronicsrenewable energy sources
spellingShingle Farid Mohammadi
Amir Khorsandi
Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
IET Power Electronics
DC–DC power convertors
power conversion
power convertors
power electronics
renewable energy sources
title Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
title_full Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
title_fullStr Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
title_full_unstemmed Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
title_short Dual‐input single‐output high step‐up DC–DC converter for renewable energy applications
title_sort dual input single output high step up dc dc converter for renewable energy applications
topic DC–DC power convertors
power conversion
power convertors
power electronics
renewable energy sources
url https://doi.org/10.1049/pel2.12646
work_keys_str_mv AT faridmohammadi dualinputsingleoutputhighstepupdcdcconverterforrenewableenergyapplications
AT amirkhorsandi dualinputsingleoutputhighstepupdcdcconverterforrenewableenergyapplications