Energy storage system combining a 320-V, 12-F electric double layer capacitor bank with a bidirectional isolated DC-DC converter

Atsushi Kobayashi, Nadia Mei Lin Tan, Shigenori Inoue, Hirofumi Akagi

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper describes the design, construction, and testing of a 320-V, 12-F EDLC energy storage bank equipped with a bidirectional isolated dc-dc converter. A simple voltage-balancing circuit is proposed, which combines a center-tapped high-frequency transformer and the EDLC bank consisting of two 160-V, 24-F EDLC sub-banks connected in series. Experimental results including charging/discharging and self-starting waveforms are shown to verify the effectiveness of the proposed voltage-balancing circuit. The power loss in the voltage-balancing circuit is verified to be negligibly small during the charging/discharging operation.

Original languageEnglish
Pages (from-to)214-221+14
JournalIEEJ Transactions on Industry Applications
Issue number2
Publication statusPublished - 28 Dec 2009


All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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