Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids

In this paper, three topologies of quadratic buck DC-DC converters were proposed that are capable of reconfiguring to semi-quadratic buck-boost converters, in case of an open-circuit fault in their power switch. In other words, with the aid of graph-based circuit synthesis concepts, a topology is ob...

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Main Author: Saman A. Gorji
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9919176/
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author Saman A. Gorji
author_facet Saman A. Gorji
author_sort Saman A. Gorji
collection DOAJ
description In this paper, three topologies of quadratic buck DC-DC converters were proposed that are capable of reconfiguring to semi-quadratic buck-boost converters, in case of an open-circuit fault in their power switch. In other words, with the aid of graph-based circuit synthesis concepts, a topology is obtained for a safe transition from one switch to another, where all other components maintain their role in contributing to optimal power conversion. Knowing that the quadratic buck converters have been proven to be an effective DC-DC circuit to supply an electrolyser as a load with specific characteristics i.e., low-voltage and high-current, the reconfigurability feature adds an extra measure of success for safer power delivery for such a load that an undesirable shut-down would negatively impact its life-cycle. The performances of three proposed synthesised topologies were compared and validated through simulation and experiments on laboratory prototypes.
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spelling doaj.art-e4d12cbcd9714ec2a367184dc4c239622022-12-22T04:34:02ZengIEEEIEEE Access2169-35362022-01-011010967710968710.1109/ACCESS.2022.32145819919176Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC MicrogridsSaman A. Gorji0https://orcid.org/0000-0002-8712-959XCentre for Clean Energy Technologies and Practices, Queensland University of Technology, Brisbane, QLD, AustraliaIn this paper, three topologies of quadratic buck DC-DC converters were proposed that are capable of reconfiguring to semi-quadratic buck-boost converters, in case of an open-circuit fault in their power switch. In other words, with the aid of graph-based circuit synthesis concepts, a topology is obtained for a safe transition from one switch to another, where all other components maintain their role in contributing to optimal power conversion. Knowing that the quadratic buck converters have been proven to be an effective DC-DC circuit to supply an electrolyser as a load with specific characteristics i.e., low-voltage and high-current, the reconfigurability feature adds an extra measure of success for safer power delivery for such a load that an undesirable shut-down would negatively impact its life-cycle. The performances of three proposed synthesised topologies were compared and validated through simulation and experiments on laboratory prototypes.https://ieeexplore.ieee.org/document/9919176/DC-DC converterDC~microgridelectrolysergreen hydrogenreconfigurabale converter
spellingShingle Saman A. Gorji
Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
IEEE Access
DC-DC converter
DC~microgrid
electrolyser
green hydrogen
reconfigurabale converter
title Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
title_full Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
title_fullStr Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
title_full_unstemmed Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
title_short Reconfigurable Quadratic Converters for Electrolyzers Utilized in DC Microgrids
title_sort reconfigurable quadratic converters for electrolyzers utilized in dc microgrids
topic DC-DC converter
DC~microgrid
electrolyser
green hydrogen
reconfigurabale converter
url https://ieeexplore.ieee.org/document/9919176/
work_keys_str_mv AT samanagorji reconfigurablequadraticconvertersforelectrolyzersutilizedindcmicrogrids