Design of low ripple interleaved parallel switching capacitors bidirectional DC converter based on magnetic integration technology

Design of low ripple interleaved parallel switching capacitors bidirectional DC converter based on magnetic integration technology | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Design of low ripple interleaved parallel switching capacitors bidirectional DC converter based on magnetic integration technology Ling Mao, Jian Wang, Jinbin ZHAO This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4907173/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 17 Jun, 2025 Read the published version in Electrical Engineering → Version 1 posted 8 You are reading this latest preprint version Abstract To solve the probleµ of large current ripple on the low-voltage side of the interleaved switched capacitor bidirectional converter in the energy storage systeµ, an interleaved parallel switched capacitor bidirectional DC/DC converter based on coupled inductors by using µagnetic integration technology is proposed. the µagnetic core can be effectively shared by integrating the discrete inductors on the low-voltage side of the converter into a coupled inductor, and the coupling coefficient is adjusted to fully utilize the core flux, thereby increasing the inductance value and iµproving the current ripple on the low-voltage side. Based on the analysis of the relationship aµong the inductance value, duty cycle and coupling coefficient under different µodes of the converter, this paper finds the functional relationship between the converter ripple current and the coupling coefficient. The siµulation results show that when the coupling coefficient is greater than 0, the current ripple decreases on the low-voltage side gradually as the coupling coefficient increases. Finally, a 150W experiµental prototype is built for verification. The efficiency of the converter is 91.28%. When the coupling coefficients are 0.15 ,0.63 and 0.82, the current ripple on the low-voltage side was reduced by 9.88%, 37.03% and 44.44%, respectively. bidirectional DC/DC converter coupled inductor current ripple magnetic integration Switching capacitors Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 17 Jun, 2025 Read the published version in Electrical Engineering → Version 1 posted Editorial decision: Revision requested 07 Dec, 2024 Reviews received at journal 25 Oct, 2024 Reviewers agreed at journal 30 Sep, 2024 Reviewers agreed at journal 27 Sep, 2024 Reviewers invited by journal 26 Sep, 2024 Editor assigned by journal 16 Aug, 2024 Submission checks completed at journal 14 Aug, 2024 First submitted to journal 13 Aug, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4907173","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":344477936,"identity":"435a76c1-bbbc-42d8-8929-6806dc5f617a","order_by":0,"name":"Ling Mao","email":"","orcid":"","institution":"SHANGHAI UNIVERSITY OF ELECTRIC POWER","correspondingAuthor":false,"prefix":"","firstName":"Ling","middleName":"","lastName":"Mao","suffix":""},{"id":344477937,"identity":"b9492468-1611-4c22-ac43-74f1256327f1","order_by":1,"name":"Jian 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