Series Connection of Snubberless IGBTs for 6.6kV Transformerless Converters

• Okada Naotaka

  Central Research Institute of Electric Power Industry

• Takasaki Masahiro

  Central Research Institute of Electric Power Industry

• Narushima Jun

  Hitachi, Ltd.

• Miyagawa Ryohei

  Hitachi, Ltd.

• Katoh Shuji

  Hitachi, Ltd.

Abstract

We developed a 6.6-kV 1-MVA transformerless converter making use of a snubberless insulated gate bipolar transistor (IGBT) 8-series connection using an Active-Gate-Control. The Active-Gate-Control can balance the collector voltage of IGBTs connected in series enabling the IGBT series connection. It allows the converter to output a high enough AC voltage to directly connect to 6.6-kV distribution lines. Therefore, the converter does not need a step-up and step-down transformer, and is extremely small and compact.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 128 (7), 874-879, 2008

  The Institute of Electrical Engineers of Japan

Keywords

• active-gate-control
• transformerless
• series connection
• snubberless

Details

• CRID: 1390001204657970048
• NII Article ID: 10021134748
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.128.874
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 9564398
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9564398
• Web Site: http://www.jstage.jst.go.jp/article/ieejias/128/7/128_7_874/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed