Bidirectional DC-DC Converter for Supercapacitor-Linked Power Interface in Advanced Electric Vehicles

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  • Mishima Tomokazu
    Dept. of Electrical Engineering & Information Science, Kure College of Technology
  • Hiraki Eiji
    Dept. of Electrical & Electronics Eng., Yamaguchi University
  • Yamamoto Kouji
    Dept. of Electrical & Electronics Eng., Yamaguchi University
  • Tanaka Toshihiko
    Dept. of Electrical & Electronics Eng., Yamaguchi University

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Other Title
  • 次世代自動車用スーパーキャパシタインターフェース双方向ＤＣ‐ＤＣコンバータ

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Description

A bidirectional DC-DC converter for supercapacitor-based energy storage systems in advanced electric vehicles is proposed in this letter. This converter consists of a half-bridge and current-fed push-pull circuit linked with a high frequency transformer, which is well applicable to the low voltage/high current charge and discharge of the supercapacitor. The experimental results of the prototype system prove the effective properties of the proposed topology in terms of a low device-conduction loss and a low switching surge.

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