2.5kV, 200kW bi-directional isolated DC/DC converter for medium-voltage applications

Yuji Matsuoka, Keiji Wada, Mizuki Nakahara, Kazuto Takao, Kyungmin Sung, Hiromichi Ohashi, Shinichi Nishizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

A bi-directional isolated DC/DC converter for medium-voltage applications have been discussed for the next-generation electrical grid, such as smart girds. To realize the DC/DC converter for installing on a power distribution system, it should be achieved higher-efficiency and lower-volume. Higher switching frequency enables to reduce the volume of the transformer. However, it is difficult to realize the both higher-efficiency and lower-volume of the DC/DC converter, because it could not operate higher frequency with high power devices such as medium-voltage IGBTs. This paper discusses switching losses and operation limitations for the actual medium-voltage isolated DC/DC converter, in the case of using Si-IGBT. In addition, the experimental system rated at 2.5 kV, 200 kW, and 5kH of the DC/DC converter with a medium-frequency transformer is designed, and the experimental results are shown.

Original languageEnglish
Title of host publication2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
PublisherIEEE Computer Society
Pages744-749
Number of pages6
ISBN (Print)9781479927050
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes
Event7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014 - Hiroshima, Japan
Duration: May 18 2014May 21 2014

Other

Other7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
CountryJapan
CityHiroshima
Period5/18/145/21/14

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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