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Ultra-reliable power electronics system with built-in power device degradation diagnosis technology

Research Project

Project/Area Number 20H02134
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21010:Power engineering-related
Research InstitutionTokyo Metropolitan University

Principal Investigator

Wada Keiji  東京都立大学, システムデザイン研究科, 教授 (00326018)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywordsパワーエレクトロニクス / パワーデバイス / オンラインモニタリング / 信頼性 / SiC-MOSFET / 状態監視 / 電力変換回路 / 高信頼 / 劣化検出 / 劣化診断
Outline of Research at the Start

本研究課題では,パワーエレクトロニクス回路実動作状況下におけるパワーデバイス劣化診断をオンライン上で行うことを目的としている。そのために,回路内部の電圧・電流波形検出の技術確立とそれらの波形からの劣化診断手法の開発を行う。本研究では,1,200 V 耐圧の SiC-MOSFET を用いたパワーエレクトロニクス回路を設計・製作し,当該研究の劣化診断術の妥当性を実験により検証する。本研究の成果として,SiC-MOSFET を対象とした劣化診断技術を取り入れたパワーエレクトロニクス回路の実装を行い,500 V, 5 kW の電力変換回路を対象にして本研究の妥当性を実験により立証する。

Outline of Final Research Achievements

The purpose of this research was to achieve high reliability and long life of power electronic circuits. The main results are as follows. (1) This study showed that SiC-MOSFET condition monitoring is effective in detecting changes in electrical characteristics associated with gate oxide film degradation due to long-term use, because SiC-MOSFETs are not easily affected by temperature. (2)This study developed a gate drive circuit for novel power electronics devices that can measure the input capacitance of MOSFETs. (3) The proposed new circuit was applied to a power electronics circuit with a DC voltage of 500 V, and experiments confirmed that it is capable of detecting device degradation. Through the above, this study have established the basic technology for circuits with on-line monitoring function.

Academic Significance and Societal Importance of the Research Achievements

本研究は、パワーエレクトロニクス回路の信頼性と長寿命化の向上を追求し、重要な成果を得た。学術的には、SiC-MOSFETの状態監視の適切な方法を明らかにし、新たなモニタリング回路の開発を達成した。また、提案した新型回路をパワーエレクトロニクス回路に適用し、その有用性を実証した。これらの成果は、次世代パワーエレクトロニクス設計のための重要な知見を提供するものである。
社会的には、本研究はパワーエレクトロニクス技術の信頼性向上に寄与する。新しい回路設計と劣化検出方法は、これらのシステムの寿命を延ばし、予知保全を可能にすることができるために、その結果として経済的な利益と持続可能性の向上につながる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (13 results)

All 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Gate Drive Circuit with Input Capacitance <i>C</i><sub>iss</sub> Measurement Function for the Condition Monitoring of Power Devices2022

    • Author(s)
      林真一郎,和田圭二
    • Journal Title

      IEEJ Transactions on Industry Applications

      Volume: 142 Issue: 6 Pages: 471-479

    • DOI

      10.1541/ieejias.142.471

    • ISSN
      0913-6339, 1348-8163
    • Year and Date
      2022-06-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design a Continuous Switching Test Circuit for Power Devices to Evaluate Reliability2022

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 1 Pages: 108-116

    • DOI

      10.1541/ieejjia.21004267

    • NAID

      130008139362

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-01-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Accelerated aging for gate oxide of SiC MOSFETs under continuous switching conditions by applying advanced HTGB test2021

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Journal Title

      Microelectronics Reliability

      Volume: 126 Pages: 1-6

    • DOI

      10.1016/j.microrel.2021.114213

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design of Bus Bar Structure in Power Converter Circuit to Obtain Optimized Switching Waveform2020

    • Author(s)
      三井晃司,和田圭二
    • Journal Title

      IEEJ Transactions on Industry Applications

      Volume: 140 Issue: 11 Pages: 817-825

    • DOI

      10.1541/ieejias.140.817

    • NAID

      130007934138

    • ISSN
      0913-6339, 1348-8163
    • Year and Date
      2020-11-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design of an Integrated Air Coil for Current Sensing2020

    • Author(s)
      Yoshikazu Kuwabara, Keiji Wada, Jean-Michel Guichon , Jean-Luc Schanen, James Roudet
    • Journal Title

      IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS

      Volume: 8 Issue: 4 Pages: 4122-4129

    • DOI

      10.1109/jestpe.2020.2977102

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Accelerated aging test for gate-oxide degradation in SiC MOSFETs for condition monitoring2020

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Journal Title

      Microelectronics Reliability

      Volume: 114 Pages: 1-6

    • DOI

      10.1016/j.microrel.2020.113777

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Analysis of Clearance Effect for Perforated Terminals Isolation of a Laminated Busbar to Parasitic Parameters2022

    • Author(s)
      Koji Mitsui; Keiji Wada
    • Organizer
      2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gate Drive Circuit Having In Situ Condition Monitoring System for Detecting Gate Oxide Degradation of SiC MOSFETs2022

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Organizer
      The IEEE Applied Power Electronics Conference and Exposition (APEC 20 22
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ミラープラトー電圧に着目したパワーデバイスの状態監視回路2022

    • Author(s)
      赤崎勇生,和田圭二
    • Organizer
      電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Gate oxide degradation characteristics of SiC MOSFETs under continuous switching conditions2021

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Organizer
      T he 32nd European Symposium on Reliability of Electron Devices, Failure Physics and Analysis (ESREF)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] パワー半導体デバイスの状態監視を目 的とした入力容量 C _iss v GS 特性の測定 機能を有するゲート駆動回路の動作検 証2021

    • Author(s)
      林真一郎,和田圭二
    • Organizer
      電気学会電子デバイス・ 半導体電力変換合同研 究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] パワーデバイスを対象とした電力回生型連続スイッチング試験装置2020

    • Author(s)
      林真一郎,和田圭二
    • Organizer
      電気学会半導体電力変換研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Gate Oxide TDDB Evaluation System for SiC Power Devices under Switching Operation Conditions2020

    • Author(s)
      Shin-Ichiro Hayashi, Keiji Wada
    • Organizer
      International Power Electronics and Motion Control Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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