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Development of Flying Capacitor Multilevel Inverters with Higher Number of Output Levels Introducing Modularlized Construction

Research Project

Project/Area Number 25420244
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionChiba University

Principal Investigator

Sato Yukihiko  千葉大学, 工学(系)研究科(研究院), 教授 (50205978)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords半導体電力変換器 / マルチレベル / 高パワー密度 / 出力波形改善 / 集積化 / マルチレベルインバータ / フライングキャパシタ / ユニット化 / 電力変換器 / 高調波低減
Outline of Final Research Achievements

Inverters are widely used as AC power supply in various kinds of applications. As a method to realize improvement of the inverters, a novel method of implementation based on modularized structure which enables a higher number of output levels. From the view point of higher power density, flying capacitor multilevel inverters are focused on. Combining 18 main circuit modules of a 5 level inverter, multilevel inverters with various numbers of levels up to a three phase 25 level inverter have been realized. Effectiveness on output waveform improvement, efficiency, temperature rise, rated voltage selection of power devices and flying capacitors, total efficiency and performance including loads are investigated comprehensively. From these results, a method to realize extreme improvement of output waveforms and higher power density has been developed.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (13 results)

All 2015 2014 2013 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Selection Criteria of Capacitors for Flying Capacitor Converters2015

    • Author(s)
      Hidemine Obara and Yukihiko Sato
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 4 Issue: 2 Pages: 105-106

    • DOI

      10.1541/ieejjia.4.105

    • NAID

      130004972824

    • ISSN
      2187-1094, 2187-1108
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improved Thermal Management of Multi-Level Converter Building Module to Realize Higher Power Density2014

    • Author(s)
      Hidemine Obara, Yukihiko Sato
    • Journal Title

      Energy Conversion Congress and Exposition (ECCE), 2014 IEEE

      Volume: 1 Pages: 2147-2152

    • DOI

      10.1109/ecce.2014.6953687

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Theoretical Analysis of Harmonics in PWM Output Waveform of Multi-Level Inverters2014

    • Author(s)
      小原 秀嶺、小栗 寛司、佐藤 之彦
    • Journal Title

      IEEJ Transactions on Industry Applications

      Volume: 134 Issue: 1 Pages: 59-67

    • DOI

      10.1541/ieejias.134.59

    • NAID

      130003382849

    • ISSN
      0913-6339, 1348-8163
    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] A Study on Minimum Required Capacitance in Flying Capacitor Multilevel Converters for Grid-Connected Applications2015

    • Author(s)
      Yukihiko Sato, Miki Iimura, Yuki Dodo, Hidemine Obara
    • Organizer
      IEEE Energy Conversion Conference
    • Place of Presentation
      カナダ,モントリオール
    • Year and Date
      2015-09-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マルチレベルコンバータモジュールの 素子耐圧設計と効率に関する検討2015

    • Author(s)
      小原秀嶺、佐藤 之彦
    • Organizer
      平成27年電気学会全国大会
    • Place of Presentation
      東京都市大学世田谷キャンパス
    • Year and Date
      2015-03-24 – 2015-03-26
    • Related Report
      2014 Research-status Report
  • [Presentation] 系統連系応用に向けた フライングキャパシタマルチレベル変換器 におけるキャパシタの所要静電容量に 関する検討2015

    • Author(s)
      飯村 美起、百々 裕輝、小原 秀嶺、佐藤 之彦
    • Organizer
      電気学会半導体電力変換研究会
    • Place of Presentation
      大阪工業大学大宮キャンパス
    • Year and Date
      2015-01-23 – 2015-01-24
    • Related Report
      2014 Research-status Report
  • [Presentation] フライングキャパシタマルチレベル インバータモジュールの実装に関する検討2014

    • Author(s)
      小原 秀嶺、佐藤 之彦
    • Organizer
      平成26年電気学会全国大会
    • Place of Presentation
      松山
    • Related Report
      2013 Research-status Report
  • [Presentation] A Concept of Multi-Level Converter Building Modules to Realize Higher Number of Output Levels2013

    • Author(s)
      Hidemine Obara, Yukihiko Sato
    • Organizer
      IEEE ECCE 2013
    • Place of Presentation
      米国、デンバー
    • Related Report
      2013 Research-status Report
  • [Presentation] マルチレベルインバータによる 高調波鉄損低減効果に関する実験検討2013

    • Author(s)
      小原 秀嶺、佐藤 之彦
    • Organizer
      平成25年電気学会産業応用部門大会
    • Place of Presentation
      山口
    • Related Report
      2013 Research-status Report
  • [Presentation] マルチレベル化によるインバータ駆動 誘導電動機の損失低減に関する一検討2013

    • Author(s)
      小栗 寛司、小原 秀嶺、 佐藤之彦
    • Organizer
      平成25年電気学会産業応用部門大会
    • Place of Presentation
      山口
    • Related Report
      2013 Research-status Report
  • [Presentation] マルチレベルインバータによる モーションコントロールシステムの 性能向上に関する一考察2013

    • Author(s)
      小原 秀嶺、名取 賢二、佐藤 之彦
    • Organizer
      電気学会メカトロニクス研究会
    • Place of Presentation
      長岡
    • Related Report
      2013 Research-status Report
  • [Remarks] 千葉大学大学院工学研究科人工システム科学専攻電気電子系コースパワーシステム教育研究分野ホームページ

    • URL

      http://ps.te.chiba-u.jp/

    • Related Report
      2015 Annual Research Report
  • [Remarks] 千葉大学大学院工学研究科人工システム科学専攻電気電子系コースパワーシステム教育研究分野ホームページ

    • URL

      http://ps.te.chiba-u.jp/research.html

    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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