A new soft‐switching high gain DC/DC converter with bipolar outputs

Abstract This paper introduces a new single‐input multi‐output step‐up DC/DC converter with soft‐switching performance and low input current for renewable energy applications. The proposed topology uses a three‐winding coupled‐inductor (TWCI) and voltage multiplier circuits to achieve high voltage g...

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Main Authors: Sara Hasanpour, Yam Prasad Siwakoti, Frede Blaabjerg
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12629
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author Sara Hasanpour
Yam Prasad Siwakoti
Frede Blaabjerg
author_facet Sara Hasanpour
Yam Prasad Siwakoti
Frede Blaabjerg
author_sort Sara Hasanpour
collection DOAJ
description Abstract This paper introduces a new single‐input multi‐output step‐up DC/DC converter with soft‐switching performance and low input current for renewable energy applications. The proposed topology uses a three‐winding coupled‐inductor (TWCI) and voltage multiplier circuits to achieve high voltage gains. The bipolar output voltages of the proposed converter can be varied independently by tuning the turns ratios of the TWCI. Due to the semi‐trans‐inverse specification of the suggested topology, high voltage gains can be obtained under a lower number of turns ratio in the magnetic device. Furthermore, a regenerative passive clamp technique mitigates the voltage stress on the single power switch. Additionally, the power dissipations are further reduced by considering a resonant tank in the circuit. In the converter, the parasitic leakage inductances of the TWCI windings help to provide the soft‐switching conditions for the switch and also to eliminate the reverse‐recovery loss for all converter diodes. The operating mode of the presented converter has been introduced and the steady state, along with the main operating equations have also been derived. Finally, the theoretical analysis is verified by a sample prototype 235 W at the input voltage 25 V and outputs of 200 V and −200 V.
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spelling doaj.art-b4034d1bba42430f8604eda7ec1995a02024-01-02T08:29:36ZengWileyIET Power Electronics1755-45351755-45432024-01-0117114415610.1049/pel2.12629A new soft‐switching high gain DC/DC converter with bipolar outputsSara Hasanpour0Yam Prasad Siwakoti1Frede Blaabjerg2Department of Electrical Engineering, Ramsar Branch Islamic Azad University Ramsar IranFaculty of Engineering and Information Technology University of Technology Sydney Ultimo AustraliaDepartment of Energy Technology Aalborg University Aalborg DenmarkAbstract This paper introduces a new single‐input multi‐output step‐up DC/DC converter with soft‐switching performance and low input current for renewable energy applications. The proposed topology uses a three‐winding coupled‐inductor (TWCI) and voltage multiplier circuits to achieve high voltage gains. The bipolar output voltages of the proposed converter can be varied independently by tuning the turns ratios of the TWCI. Due to the semi‐trans‐inverse specification of the suggested topology, high voltage gains can be obtained under a lower number of turns ratio in the magnetic device. Furthermore, a regenerative passive clamp technique mitigates the voltage stress on the single power switch. Additionally, the power dissipations are further reduced by considering a resonant tank in the circuit. In the converter, the parasitic leakage inductances of the TWCI windings help to provide the soft‐switching conditions for the switch and also to eliminate the reverse‐recovery loss for all converter diodes. The operating mode of the presented converter has been introduced and the steady state, along with the main operating equations have also been derived. Finally, the theoretical analysis is verified by a sample prototype 235 W at the input voltage 25 V and outputs of 200 V and −200 V.https://doi.org/10.1049/pel2.12629DC‐DC power convertorshigh‐voltage techniquespower convertors
spellingShingle Sara Hasanpour
Yam Prasad Siwakoti
Frede Blaabjerg
A new soft‐switching high gain DC/DC converter with bipolar outputs
IET Power Electronics
DC‐DC power convertors
high‐voltage techniques
power convertors
title A new soft‐switching high gain DC/DC converter with bipolar outputs
title_full A new soft‐switching high gain DC/DC converter with bipolar outputs
title_fullStr A new soft‐switching high gain DC/DC converter with bipolar outputs
title_full_unstemmed A new soft‐switching high gain DC/DC converter with bipolar outputs
title_short A new soft‐switching high gain DC/DC converter with bipolar outputs
title_sort new soft switching high gain dc dc converter with bipolar outputs
topic DC‐DC power convertors
high‐voltage techniques
power convertors
url https://doi.org/10.1049/pel2.12629
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