A New Simplified Method and Design Guidelines for the Optimization of Push-Pull Class Φ 2Converters for Wireless Power Transfer Applications

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLiu, Yining
dc.contributor.authorJayathurathnage, Prasad
dc.contributor.authorKyyra, Jorma
dc.contributor.departmentDepartment of Electrical Engineering and Automation
dc.contributor.departmentIndustrial and Power Electronics
dc.contributor.departmentDepartment of Electrical Engineering and Automationen
dc.date.accessioned2023-08-11T07:22:50Z
dc.date.available2023-08-11T07:22:50Z
dc.date.issued2023-08-01
dc.descriptionPublisher Copyright: Author
dc.description.abstractThe complicated resonant operations of class Φ2 topology bring challenges for accurate design and performance optimization, hindering the full utilization potential of converters. Considering the narrow design freedom in traditional methods with almost fixed duty cycle D, this article widens the design options of push-pull class Φ2 converters through frequency-harmonic analysis. A full selection freedom of Din (0,0.5) is discussed analytically, providing ample space for optimization based on any required performance indices. From 1.98E5 analytical results, we found six numerical equations that fully decouple the interconnected relations between each circuit parameter and D. The proposed numerical method allows rapid circuit design and component selection with a high accuracy regardless of the system power or load voltage. Parasitic effects are discussed and incorporated into the design approach as correction steps. Finally, we introduce performance analysis based on an example wireless power transfer (WPT) system, providing in-depth studies on the optimization regarding efficiency, power output capability, and component selection. Experimental results validate the accuracy and efficiency of the proposed design method based on a 100-W WPT system at 6.78 MHz frequency. Both inverter and rectifier present load-independent soft-switching operations, with converter efficiency over 93%. The system provides 83% dc-dc efficiency at full load.en
dc.description.versionPeer revieweden
dc.format.extent18
dc.format.extent10442-10459
dc.format.mimetypeapplication/pdf
dc.identifier.citationLiu , Y , Jayathurathnage , P & Kyyra , J 2023 , ' A New Simplified Method and Design Guidelines for the Optimization of Push-Pull Class Φ 2 Converters for Wireless Power Transfer Applications ' , IEEE Transactions on Power Electronics , vol. 38 , no. 8 , pp. 10442-10459 . https://doi.org/10.1109/TPEL.2023.3272840en
dc.identifier.doi10.1109/TPEL.2023.3272840
dc.identifier.issn0885-8993
dc.identifier.otherPURE UUID: 7c8e0a70-ecda-4579-8b21-d7406978685a
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/7c8e0a70-ecda-4579-8b21-d7406978685a
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85159843671&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/118051619/A_New_Simplified_Method_and_Design_Guidelines_for_the_Optimization_of_PushPull_Class_Phi_2_Converters_for_Wireless_Power_Transfer_Applications.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/122370
dc.identifier.urnURN:NBN:fi:aalto-202308114719
dc.language.isoenen
dc.publisherIEEE
dc.relation.ispartofseriesIEEE Transactions on Power Electronicsen
dc.relation.ispartofseriesVolume 38, issue 8en
dc.rightsopenAccessen
dc.subject.keywordDesign methodology
dc.subject.keywordMHz
dc.subject.keywordOptimization
dc.subject.keywordResonant frequency
dc.subject.keywordResonant power converters
dc.subject.keywordSwitches
dc.subject.keywordTopology
dc.subject.keywordVoltage
dc.subject.keywordwireless power transfer
dc.subject.keywordZero voltage switching
dc.subject.keywordzero-voltage switching
dc.subject.keywordzero-voltage-derivative switching
dc.titleA New Simplified Method and Design Guidelines for the Optimization of Push-Pull Class Φ 2Converters for Wireless Power Transfer Applicationsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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