{"title":"Simplified Integration of Bidirectional OBC and WPT Charging Systems With Reconfiguring Topology for Electric Vehicles","authors":"Cheol-Hee Jo;Dong-Hee Kim","doi":"10.1109/TPEL.2025.3540516","DOIUrl":null,"url":null,"abstract":"This letter proposes a simplified integration system of bidirectional on-board chargers (OBC) and wireless power transfer (WPT) charging systems for electric vehicles. The proposed system reduces the cost, weight, and volume of the power conversion units by sharing active switch bridges and magnetic coupler coils without mechanical switches. The proposed magnetic coupler design method enables the secondary coil to be shared in both OBC and WPT modes, while the primary coil for OBC can be magnetically decoupled from the transmitter coil in WPT mode. Based on the proposed topology configuration and winding method, the proposed system operates as a dual-active bridge and an inductor-capacitor-capacitor-series (LCC-S) compensated converter in the OBC and WPT modes, respectively. To validate the proposed integrated OBC and WPT charging system, a prototype with a 3.3-kW OBC and WPT system is configured and verified through experiments.","PeriodicalId":13267,"journal":{"name":"IEEE Transactions on Power Electronics","volume":"40 6","pages":"7651-7656"},"PeriodicalIF":6.5000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Power Electronics","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10879273/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This letter proposes a simplified integration system of bidirectional on-board chargers (OBC) and wireless power transfer (WPT) charging systems for electric vehicles. The proposed system reduces the cost, weight, and volume of the power conversion units by sharing active switch bridges and magnetic coupler coils without mechanical switches. The proposed magnetic coupler design method enables the secondary coil to be shared in both OBC and WPT modes, while the primary coil for OBC can be magnetically decoupled from the transmitter coil in WPT mode. Based on the proposed topology configuration and winding method, the proposed system operates as a dual-active bridge and an inductor-capacitor-capacitor-series (LCC-S) compensated converter in the OBC and WPT modes, respectively. To validate the proposed integrated OBC and WPT charging system, a prototype with a 3.3-kW OBC and WPT system is configured and verified through experiments.
期刊介绍:
The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.