NDLI: Medium-Voltage Power Conversion Systems in the Next Generation

Content Provider	IEEE Xplore Digital Library
Author	Akagi, H. Inoue, S.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol. (Akagi, H.; Inoue, S.)
Abstract	This paper describes the next-generation medium-voltage power conversion systems characterized by using bidirectional isolated dc/dc converters. A 350-V, 10-kW and 20-kHz dc/dc converter is designed, constructed and tested as a core circuit of the medium-voltage power conversion systems. It consists of two single-phase full-bridge converters with the latest trench-gate Si-IGBTs and a 20-kHz transformer with a nano-crystalline soft-magnetic material core and litz wires. The transformer plays an essential role in achieving galvanic isolation between the two full-bridge converters. The overall efficiency from the dc-input to dc-output terminals is accurately measured to be as high as 97%, excluding gate drive circuit and control circuit losses from the whole loss. Moreover, loss analysis clarifies that the use of SiC-based power devices may bring a significant reduction in conducting and switching losses to the dc/dc converter. As a result, the overall efficiency may reach 99% or higher
Sponsorship	China Electrotechnical Soc. IEEE Power Electron. Soc
Starting Page	1
Ending Page	8
File Size	365341
Page Count	8
File Format	PDF
ISBN	1424404487
DOI	10.1109/IPEMC.2006.4777943
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Medium voltage Power conversion DC-DC power converters Circuit testing Transformer cores System testing Nanostructured materials Wires Galvanizing Loss measurement
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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