Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results

To meet the requirements of charging the mainstream rechargeable batteries, in this work, a dual-bridge resonant converter (DBRC) is operated as a battery charger. Thanks to the features of this topology, the required high efficiency can be achieved with a wide range of battery voltage and current b...

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Main Authors: Jiaqi Wu, Xiaodong Li, Shengzhi Zhou, Song Hu, Hao Chen
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/24/12143
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author Jiaqi Wu
Xiaodong Li
Shengzhi Zhou
Song Hu
Hao Chen
author_facet Jiaqi Wu
Xiaodong Li
Shengzhi Zhou
Song Hu
Hao Chen
author_sort Jiaqi Wu
collection DOAJ
description To meet the requirements of charging the mainstream rechargeable batteries, in this work, a dual-bridge resonant converter (DBRC) is operated as a battery charger. Thanks to the features of this topology, the required high efficiency can be achieved with a wide range of battery voltage and current by using different modulation variables. Firstly, a typical charging process including constant-voltage stage and constant-current stage is indicated. Then, two different modulation methods of the DBRC are proposed, both of which can realize constant-voltage charging and constant-current charging. Method I adopts phase-shift modulation with constant switching frequency while Method II adopts varying frequency modulation. Furthermore, as guidance for practical application, the design principles and detailed design procedures of the DBRC are customized for the two modulation methods respectively in order to reduce the switching loss and conduction loss. Consequently, the full soft-switching operation with low rms tank current is achieved under the two modulation methods, which contributes to the high efficiency of the whole charging process. At last extensive simulation and experimental tests on a lab prototype converter are performed, which prove the feasibility and effectiveness of the proposed modulation strategies.
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spelling doaj.art-ab5948013bf64b72b3b17cce40327c6a2023-11-23T03:43:51ZengMDPI AGApplied Sciences2076-34172021-12-0111241214310.3390/app112412143Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental ResultsJiaqi Wu0Xiaodong Li1Shengzhi Zhou2Song Hu3Hao Chen4School of Electrical Engineering and Automation, Changshu Institute of Technology, Suzhou 215000, ChinaFaculty of Information Technology, Macau University of Science and Technology, Macau 999078, ChinaFaculty of Information Technology, Macau University of Science and Technology, Macau 999078, ChinaSchool of Electrical Engineering and Automation, Changshu Institute of Technology, Suzhou 215000, ChinaSchool of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaTo meet the requirements of charging the mainstream rechargeable batteries, in this work, a dual-bridge resonant converter (DBRC) is operated as a battery charger. Thanks to the features of this topology, the required high efficiency can be achieved with a wide range of battery voltage and current by using different modulation variables. Firstly, a typical charging process including constant-voltage stage and constant-current stage is indicated. Then, two different modulation methods of the DBRC are proposed, both of which can realize constant-voltage charging and constant-current charging. Method I adopts phase-shift modulation with constant switching frequency while Method II adopts varying frequency modulation. Furthermore, as guidance for practical application, the design principles and detailed design procedures of the DBRC are customized for the two modulation methods respectively in order to reduce the switching loss and conduction loss. Consequently, the full soft-switching operation with low rms tank current is achieved under the two modulation methods, which contributes to the high efficiency of the whole charging process. At last extensive simulation and experimental tests on a lab prototype converter are performed, which prove the feasibility and effectiveness of the proposed modulation strategies.https://www.mdpi.com/2076-3417/11/24/12143DC–DC converterresonant converterbattery chargerconstant-current operationconstant-voltage operation
spellingShingle Jiaqi Wu
Xiaodong Li
Shengzhi Zhou
Song Hu
Hao Chen
Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
Applied Sciences
DC–DC converter
resonant converter
battery charger
constant-current operation
constant-voltage operation
title Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
title_full Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
title_fullStr Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
title_full_unstemmed Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
title_short Constant-Current, Constant-Voltage Operation of a Dual-Bridge Resonant Converter: Modulation, Design and Experimental Results
title_sort constant current constant voltage operation of a dual bridge resonant converter modulation design and experimental results
topic DC–DC converter
resonant converter
battery charger
constant-current operation
constant-voltage operation
url https://www.mdpi.com/2076-3417/11/24/12143
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AT shengzhizhou constantcurrentconstantvoltageoperationofadualbridgeresonantconvertermodulationdesignandexperimentalresults
AT songhu constantcurrentconstantvoltageoperationofadualbridgeresonantconvertermodulationdesignandexperimentalresults
AT haochen constantcurrentconstantvoltageoperationofadualbridgeresonantconvertermodulationdesignandexperimentalresults