Multiport converters for fast chargers of electrical vehicles - Focus on high-frequency coaxial transformers

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Abstract

A bi-directional multi-port converter can accommodate various energy storages and sources. Therefore, a multiport converter will be a good candidate for application as a future universal converter for (hybrid) electrical vehicles or local distribution systems. For the multiport converter proposed in this paper, the main design challenge is the design of its three-phase symmetrical transformer. In this converter, symmetry of the leakage inductances is essential to ensure balanced three-phase currents (transferred power). These currents are interconnected by three single-phase high-frequency link transformers. To realize the equality of the leakage inductances a specific transformer design is necessary. Since conventionally wound three-phase transformer core shapes suitable for high-frequency are expensive and difficult to build, a coaxially wound transformer will be designed in this paper.
Original languageEnglish
Title of host publicationProc. Power Electronics Conference (IPEC), 2010 International, Sapporo, Japan
PublisherIPEC
Pages3151-3157
DOIs
Publication statusPublished - 2010
Event2008 International Conference on Power Electronics Conference (IPEC 2010) - Sapporo, Japan
Duration: 21 Jun 201024 Jun 2010

Conference

Conference2008 International Conference on Power Electronics Conference (IPEC 2010)
Abbreviated titleIPEC 2010
Country/TerritoryJapan
CitySapporo
Period21/06/1024/06/10

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