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Realization of Sustainable Green Society Through 99.9% Class Efficiency Electric Power Conversion

Research Project

Project/Area Number 17H06147
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionYokohama National University

Principal Investigator

KAWAMURA ATSUO  横浜国立大学, 大学院工学研究院, 名誉教授 (80186139)

Co-Investigator(Kenkyū-buntansha) 辻 隆男  横浜国立大学, 大学院工学研究院, 准教授 (00432873)
小原 秀嶺  横浜国立大学, 大学院工学研究院, 准教授 (50772787)
藤本 康孝  横浜国立大学, 大学院工学研究院, 教授 (60313475)
下野 誠通  横浜国立大学, 大学院工学研究院, 准教授 (90513292)
Project Period (FY) 2017-05-31 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥179,400,000 (Direct Cost: ¥138,000,000、Indirect Cost: ¥41,400,000)
Fiscal Year 2021: ¥25,220,000 (Direct Cost: ¥19,400,000、Indirect Cost: ¥5,820,000)
Fiscal Year 2020: ¥41,990,000 (Direct Cost: ¥32,300,000、Indirect Cost: ¥9,690,000)
Fiscal Year 2019: ¥37,830,000 (Direct Cost: ¥29,100,000、Indirect Cost: ¥8,730,000)
Fiscal Year 2018: ¥39,520,000 (Direct Cost: ¥30,400,000、Indirect Cost: ¥9,120,000)
Fiscal Year 2017: ¥34,840,000 (Direct Cost: ¥26,800,000、Indirect Cost: ¥8,040,000)
Keywords電力変換 / 高効率インバータ / 電力工学 / 電気機器 / パワーエレクトロニクス / 電力変換効率 / 効率 / マイクログリッド / 新電力網 / 部分電力変換
Outline of Final Research Achievements

We proposed a loss decomposition method (measurement accuracy: 0.04%) and clarified the breakdown of losses. Furthermore, a virtual transformer based asynchronous loss measurement method (VTALSM method) was proposed to improve the measurement accuracy by one order of magnitude. Using VTASLM method and the proposed HEECS inverter, we optimized various parameters and controls and achieved power conversion efficiencies and accuracy of 99.827% ± 0.009% for SiC power devices and 99.817% ± 0.004% for GaN power devices. As an application example, we proposed and demonstrated a fast response of powering and regenerating control of grid connected operation. In addition, it was demonstrated that the power factor was freely changed. We also demonstrated the basis of a phase shifter in the power transmission line using the proposed HEECS inverters. As another application a highly efficient three-phase motor drive was demonstrated using three phase HEECS inverter.

Academic Significance and Societal Importance of the Research Achievements

我が国のエネルギー事情としては、省エネルギー化および再生可能エネルギーの利用が、持続可能な産業の発展に必須である。再生可能エネルギーの安定利用を実現するための基礎となる技術は、電気エネルギーの変換技術である。本プロジェクトでの成果である99.9%級の電力変換器は電力網のどこへでも配置することができるので、電気エネルギーの利用形態が画期的に変化する。その理由は、電気エネルギーの移動に伴う損失が無視できることにより、周波数、振幅、位相、接地といった電力の移動の制約から解放され、さらに損失が小さいので発熱の制約からも解放され、電力変換機器自体を小型化できるためである。

Assessment Rating
Verification Result (Rating)

A-

Assessment Rating
Result (Rating)

A: Progress in the research is steadily towards the initial goal. Expected research results are expected.

Report

(11 results)
  • 2022 Research Progress Assessment (Verification Result) ( PDF )
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report   Abstract(Research Progress Assessment) ( PDF )   Research Progress Assessment (Result) ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (91 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (21 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 16 results,  Open Access: 13 results) Presentation (63 results) (of which Int'l Joint Research: 31 results,  Invited: 8 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] 清華大学(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 清華大学(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] SINTEFエネルギー研究所(ノルウェー)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 清華大学(中国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Multilevel Cascaded H-Bridge Linear Amplifier with Unequal DC Capacitor Voltages Using a DC Voltage Source2022

    • Author(s)
      Setiadi Hadi、Obara Hidemine
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 3 Pages: 522-530

    • DOI

      10.1541/ieejjia.21011915

    • NAID

      130008145469

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-05-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proposal of Virtual Transformer-based Back-to-Back Asynchronous Loss Measurement using a Single Set of Measurement Instruments for One Inverter and Experimental Verification2022

    • Author(s)
      Kawamura Atsuo、Nasu Yoshiki、Miguchi Yasuhiko、Setiadi Hadi、Obara Hidemine
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 1 Pages: 175-184

    • DOI

      10.1541/ieejjia.21008251

    • NAID

      130008139381

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-01-01
    • Related Report
      2021 Annual Research Report
  • [Journal Article] Minimization of DC-Link Capacitance and Improved Operational Performance of a 5-Level Hybrid Multilevel DC-Link Inverter2022

    • Author(s)
      Kahwa Almachius、Obara Hidemine、Fujimoto Yasutaka
    • Journal Title

      IEEE Open Journal of Power Electronics

      Volume: 3 Pages: 182-196

    • DOI

      10.1109/ojpel.2022.3160867

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Online voltage control of <scp>DC</scp> microgrids with different loading conditions using particle swarm optimization2022

    • Author(s)
      Aboelsoud Hossam、Ikeda Naoya、Tsuji Takao、Hojo Masahide、Okada Naotaka
    • Journal Title

      IEEJ Transactions on Electrical and Electronic Engineering

      Volume: 11 Issue: 6 Pages: 780-791

    • DOI

      10.1002/tee.23567

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Systematization of a Multilevel-Topology-Based Linear Amplifier Family for Noiseless DC?AC Power Conversion2021

    • Author(s)
      Obara Hidemine、Ohno Tatsuki、Kawamura Atsuo
    • Journal Title

      IEEE Access

      Volume: 9 Pages: 159627-159639

    • DOI

      10.1109/access.2021.3130681

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion2021

    • Author(s)
      Obara Hidemine、Ohno Tatsuki、Katayama Masaya、Kawamura Atsuo
    • Journal Title

      IEEE Transactions on Industry Applications

      Volume: 57 Issue: 1 Pages: 614-627

    • DOI

      10.1109/tia.2020.3034560

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Two-Battery HEECS Inverter with over 99.7% Efficiency at 2.2kW Output and Measurement Accuracy Based on Loss Breakdown2020

    • Author(s)
      Kawamura Atsuo、Nakazaki Satoshi、Ito Shogo、Nagai Sakahisa、Obara Hidemine
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 9 Issue: 6 Pages: 663-673

    • DOI

      10.1541/ieejjia.20001291

    • NAID

      130007934370

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2020-11-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High Performance Transient Response of High/Low Pulse Voltage using Two-Phase Interleaved DC-DC Buck Converter under Half Sampling Time Deadbeat Control2020

    • Author(s)
      Kosode Yoshiki、Obara Hidemine、Kawamura Atsuo、Hosoyamada Yu、Suenaga Toyoaki、Yuzurihara Itsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 9 Issue: 4 Pages: 444-452

    • DOI

      10.1541/ieejjia.9.444

    • NAID

      130007868249

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2020-07-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Individual Deadbeat Control for Three-Phase Interleaved Buck DC/DC Converters2020

    • Author(s)
      Hosoyamada Yu、Fujimoto Yasutaka、Kawamura Atsuo、Yuzurihara Itsuo
    • Journal Title

      IEEE Transactions on Industry Applications

      Volume: 56 Issue: 5 Pages: 5065-5074

    • DOI

      10.1109/tia.2020.2998672

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Voltage Control of Intermittent Pulse Density Modulation for Two Battery-operated HEECS Choppers and its Application for Range Extension of Electric Vehicles2019

    • Author(s)
      Tamura Ayataro、Ishibashi Takayuki、Umihara Takuro、Tsuruta Yukinori、Obara Hidemine、Kawamura Atsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 8 Issue: 5 Pages: 787-794

    • DOI

      10.1541/ieejjia.8.787

    • NAID

      130007700490

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
  • [Journal Article] Realization and Highly Precise Measurement of 50kW HEECS Chopper with 99.5% Efficiency2019

    • Author(s)
      Tsuruta Yukinori、Kawamura Atsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 8 Issue: 5 Pages: 843-848

    • DOI

      10.1541/ieejjia.8.843

    • NAID

      130007700485

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2019-09-01
    • Related Report
      2019 Annual Research Report
  • [Journal Article] Fast Force Control without Force Sensor Using Combination of aaKF and RFOB for In-circuit Test with Probing System2019

    • Author(s)
      Nagai Sakahisa、Oboe Roberto、Shimono Tomoyuki、Kawamura Atsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 8 Issue: 2 Pages: 152-159

    • DOI

      10.1541/ieejjia.8.152

    • NAID

      130007606363

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2019-03-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiple Source Input Isolated DC-DC Converter with Simple Circuit2019

    • Author(s)
      Abeta Hiroyuki、Obara Hidemine、Kawamura Atsuo
    • Journal Title

      IEEJ Transactions on Industry Applications

      Volume: 139 Issue: 3 Pages: 266-275

    • DOI

      10.1541/ieejias.139.266

    • NAID

      130007607266

    • ISSN
      0913-6339, 1348-8163
    • Year and Date
      2019-03-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Review of Medium Voltage High Power Electric Drives2019

    • Author(s)
      Ben-Brahim Lazhar、Gastli Adel、Yoshino Teruo、Yokoyama Tomoki、Kawamura Atsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 8 Issue: 1 Pages: 1-11

    • DOI

      10.1541/ieejjia.8.1

    • NAID

      130007542459

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2019-01-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network2019

    • Author(s)
      Masaya Katayama, Tatsuk Ohno, Hidemine Obara, and Atsuo Kawamura
    • Journal Title

      IEEE Transactions on Industry Applications

      Volume: Vol. 55, No. 3 Issue: 3 Pages: 2902-2909

    • DOI

      10.1109/tia.2019.2896839

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EV Range Extender in a Two-Battery HEECS Chopper-Based Powertrain2019

    • Author(s)
      Tamura Ayataro、Ishibashi Takayuki、Kawamura Atsuo
    • Journal Title

      World Electric Vehicle Journal

      Volume: 10 Issue: 2 Pages: 19-19

    • DOI

      10.3390/wevj10020019

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seamless Control of Grid-Connected Inverter during Single Phase Disconnection after Single Phase Fault in a Weak Grid2018

    • Author(s)
      Liu Ben、Yoshino Teruo、Kawamura Atsuo
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 7 Issue: 6 Pages: 506-516

    • DOI

      10.1541/ieejjia.7.506

    • NAID

      40021705262

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2018-11-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electromagnetic Linear Actuator providing High Force Density per Unit Area without Position Sensor as a Tactile Cell2018

    • Author(s)
      Takuya Noguchi、Sakahisa Nagai, Atsuo Kawamura
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 7 Issue: 3 Pages: 259-265

    • DOI

      10.1541/ieejjia.7.259

    • NAID

      130006731008

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2018-05-01
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current-Dependent Capacitor Voltage Control (CCVC) of Parallel Autonomous UPS Systems2018

    • Author(s)
      Mohammad Bani.Shamseh, Teruo.Yoshino, Atsuo Kawamura
    • Journal Title

      IEEE Transactions on Industrial Electronics

      Volume: 65 Issue: 4 Pages: 2873-2882

    • DOI

      10.1109/tie.2017.2752121

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Load Current Distribution between Parallel Inverters based on Capacitor Voltage Control for UPS Applications2017

    • Author(s)
      M.Shamseh, T. Yoshino, A. Kawamura
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 6 Issue: 4 Pages: 258-267

    • DOI

      10.1541/ieejjia.6.258

    • NAID

      130006907711

    • ISSN
      2187-1094, 2187-1108
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fast and Robust Nonlinear Deadbeat Current Control for Boost Converter2017

    • Author(s)
      Aviti Mushi, Sakahisa Nagai, Hidemine Obara, Atsuo Kawamura
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 6 Issue: 5 Pages: 311-319

    • DOI

      10.1541/ieejjia.6.311

    • NAID

      130006041749

    • ISSN
      2187-1094, 2187-1108
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 高効率HEECSインバータの損失低減に関する一考察2022

    • Author(s)
      河村篤男、Hadi Setiadi、味口泰彦、那須祥樹、小原秀嶺
    • Organizer
      電気学会半導体電力変換研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2電源HEECS三相インバータによる高効率モータ駆動2022

    • Author(s)
      那須祥樹、Hadi Setiadi、味口泰彦、小原秀嶺、河村篤男
    • Organizer
      電気学会半導体電力変換研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超高効率単相連系インバータ(HEECS)の遅れ力率での運転2022

    • Author(s)
      味口泰彦、Hadi Setiadi、那須祥樹、小原秀嶺、河村篤男
    • Organizer
      電気学会半導体電力変換研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] "Implementation of GaN-based HEECS Inverter2022

    • Author(s)
      Hadi Setiadi, Yoshiki Nasu, Yasuhiko Miguchi, Hidemine Obara, Atsuo. Kawamura
    • Organizer
      IEEJ annual meeting
    • Related Report
      2021 Annual Research Report
  • [Presentation] HEECSインバータの直流電源電圧比に関する最適化の検討2022

    • Author(s)
      河村篤男、Hadi Setiadi、味口泰彦、那須祥樹、小原秀嶺
    • Organizer
      電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高効率HEECS三相インバータによる誘導器駆動と実機効率測定2022

    • Author(s)
      那須祥樹、Hadi Setiadi、味口泰彦、小原秀嶺、河村篤男
    • Organizer
      電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] デッドビート電流制御を内蔵する電圧制御系の安定性の検証2022

    • Author(s)
      味口泰彦、Hadi Setiadi、那須祥樹、小原秀嶺、河村篤男
    • Organizer
      電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Analysis and Implementation of a 5-Level Hybrid Inverter with Reduced Switching Devices Using Phase-Shifted PWM2021

    • Author(s)
      Almachius Kahwa, Hidemine Obara, and Yasutaka Fujimoto
    • Organizer
      IEEE Energy Conversion Congress and Exposition (ECCE)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 仮想トランスに基づくBTB非同期同一機器損失測定法によるインバータの高精度効率測定法の提案と実測例2021

    • Author(s)
      河村篤男、那須祥樹、味口泰彦、Hadi Setiad、小原秀嶺
    • Organizer
      電気学会産業応用部門大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 2電源HEECSチョッパを利用した高効率三相インバータの実験検証2021

    • Author(s)
      那須祥樹、味口泰彦、小原秀嶺、河村篤男
    • Organizer
      電気学会産業応用部門大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超高効率単相連系インバータ(HEECS)の進み力率での運転2021

    • Author(s)
      味口泰彦、Hadi Setiadi、那須祥樹、小原秀嶺、河村篤男
    • Organizer
      電気学会産業応用部門大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Co-ordinated Q-V/P-F Priority Control Strategy for PV Smart Inverter- Based Autonomous AC Microgrid2021

    • Author(s)
      AROU ANYUAT JOHN,TAKAO TSUJI
    • Organizer
      電気学会 電力技術/電力系統技術合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 離島マイクログリッドにおける風力発電のイナーシャ制御のための回転数最適化手法2021

    • Author(s)
      川井久尚, 辻隆男
    • Organizer
      電気学会 新エネルギ-・環境/高電圧 合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Challenge to 99.9 % efficiency electric power conversion and the applications2021

    • Author(s)
      Atsuo Kawamura
    • Organizer
      IEEE ICPES2021(International Conference on Power and Energy Systems)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高効率HEECSインバータの損失の高精度測定法に関する一考察2021

    • Author(s)
      河村篤男、那須祥樹、味口泰、Hadi Setiadi, 小原秀嶺
    • Organizer
      電気学会半導体電力変換研究会SPC-21-37
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2電源HEECS単相インバータによる回生動作と系統連系応用2021

    • Author(s)
      那須祥樹、味口泰、Hadi Setiadi、小原秀嶺、河村篤男
    • Organizer
      電気学会半導体電力変換研究会SPC-21-30
    • Related Report
      2020 Annual Research Report
  • [Presentation] スルーレート制御アクティブゲート駆動を用いた広電流範囲にわたるSiC-MOSFETターンオフ損失低減の検討2021

    • Author(s)
      伊藤正悟、Hadi Setiadi、小原秀嶺、下野誠通、河村篤男
    • Organizer
      電気学会半導体電力変換研究会SPC-21-33
    • Related Report
      2020 Annual Research Report
  • [Presentation] Study on advanced Modular Cascaded Linear Amplifier with Unequal Capacitor Voltage of H-bridge Cells2021

    • Author(s)
      Hadi Setiadi, Hidemine Obara, Atsuo. Kawamura
    • Organizer
      IEEJ, Technical meeting on Static Power Conversion, SPC-21-34
    • Related Report
      2020 Annual Research Report
  • [Presentation] 配電系統のフリッカ抑制のためのSTATCOMの2自由度制御2021

    • Author(s)
      香山優太、辻隆男
    • Organizer
      電気学会神奈川支所研究発表会,KNG-21-016
    • Related Report
      2020 Annual Research Report
  • [Presentation] Trend of Very High Efficient DC-DC and DC-AC Power Conversion2021

    • Author(s)
      Atsuo Kawamura
    • Organizer
      IEEE AEEEC 2021 (Asian Energy and Electrical Engineering Conference), Keynote Speach(Chengdu, China)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 効率99.71%2電源HEECSインバータの高精度効率測定2020

    • Author(s)
      河村篤男、中崎智志、伊藤正悟、永井栄寿、小原秀嶺
    • Organizer
      電気学会半導体電力変換研究会SPC-20-142
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2電源HEECS単相インバータによる構想潮流制御のシミュレーションによる実現2020

    • Author(s)
      那須祥樹、味口泰彦、小原秀嶺、河村篤男
    • Organizer
      電気学会半導体電力変換研究会SPC-20-188
    • Related Report
      2020 Annual Research Report
  • [Presentation] 超高効率単相連系インバータ(HEECS)の電流制御2020

    • Author(s)
      味口泰彦、那須祥樹、小原秀嶺、河村篤男
    • Organizer
      電気学会半導体電力変換研究会SPC-20-128
    • Related Report
      2020 Annual Research Report
  • [Presentation] Challenge to 99.9 % efficiency electric power conversion in a few kW power range2020

    • Author(s)
      Atsuo Kawamura
    • Organizer
      IEEE IPEMC-ECCE-Asia2020, Keynote Speach( Nanjing China)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2電源HEECSインバータでの変換効率99.7%の実測2020

    • Author(s)
      中﨑智志、那須祥樹、伊藤正悟、永井栄寿、小原秀嶺、河村篤男
    • Organizer
      電気学会全国大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HEECSインバータによる三相モータ駆動のための基礎検討2020

    • Author(s)
      那須祥生、中崎智志、小原秀嶺、河村篤男
    • Organizer
      電気学会全国大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] “High/Low電圧パルス出力のための二相インターリーブ降圧コンバータにおけるむだ時間補償型の半周期毎電流デッドビート制御2020

    • Author(s)
      小袖義貴、小原秀嶺、河村篤男、細山田 悠、末永豊昭、譲原逸男
    • Organizer
      電気学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Discussion on Loss Breakdown of 99.6% Efficiency Two Battery HEECS Inverter2019

    • Author(s)
      Satoshi Nakazaki, Ito Shogo, Hidemine Obara, Atsuo Kawamura
    • Organizer
      IEEE 21th European Conference on Power Electronics and Application,EPE'19 ECCE Europe(国際会議)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Realization of High Performance Transient Response for Two-Phase Interleaved DC-DC Buck Converter using Half Sampling Time Deadbeat Control2019

    • Author(s)
      Yoshiki Kosode, Hidemine Obara, Atsuo Kawamura, Yu Hosoyamada, Itsuo Yuzurihara
    • Organizer
      IEEE 45th Annual Conference of the Industrial Electronics Society(IECON)(国際会議)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Proposal of SOC Unbalancing Solution Combined with Flux-weakening Control for Two-battery HEECS Chopper-based EV Powertrain2019

    • Author(s)
      Takayuki Ishibashi,Hidemime Obara, Atsuo Kawamura
    • Organizer
      IEEE IFEEC(国際会議)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Challenge to 99.9 % efficiency electric power conversion and the applications2019

    • Author(s)
      Atsuo Kawamura
    • Organizer
      IEEE ICRERA2019(International Conference on Renewable Energy Research and Applications), Keynote Speach
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 直列チョッパ方式による自動車の走行距離延伸と変換効率99.9%の電力変換機器実現への挑戦のインパクト2019

    • Author(s)
      河村篤男
    • Organizer
      第9回スマートビークル研究センターシンポジウム(豊田工大)で招待講演
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 電力変換効率99.9%への挑戦とその研究の変遷2019

    • Author(s)
      河村篤男
    • Organizer
      永守賞授賞式で招待講演
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Challenge to 99.9 % electric power conversion efficiency2019

    • Author(s)
      Atsuo Kawamura
    • Organizer
      IEEJ SAMCON 2019(International Workshop on Sensing, Actuating, Motion Control, and Optimization), Keynote Speaker
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 超高効率なDC-DCおよびDC-AC電力変換器に関する調査2019

    • Author(s)
      河村篤男
    • Organizer
      電気学会電力変換・モータドライブ研究会で招待講演
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Sensorless Position Control for Compact Dual Solenoid Actuator Using Disturbance Observer2019

    • Author(s)
      Sakahisa Nagai and Atsuo Kawamura
    • Organizer
      IEEE International Conference on Mechatronics(ICM2019)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] LCフィルタの検討に基づく超高効率インバータの変換効率99.6%の実現2019

    • Author(s)
      中崎、伊藤、永井、小原、河村
    • Organizer
      電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超高効率電力変換を目指した2つの主回路トポロジーにおける損失の実測比較2019

    • Author(s)
      伊藤、中崎、永井、小原、河村
    • Organizer
      電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] T-PWAM制御を用いた高効率GaN三相交流インバータの実機による検討2019

    • Author(s)
      見山友樹,小原秀嶺,下野誠通,河村篤男
    • Organizer
      平成31年電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] High efficiency chopper based EV range extender2018

    • Author(s)
      Ayataro Tamura, Takayuki Ishibashi, Takuro Umihara, Yukinori Tsuruta, Hidemine Obara, and Atsuo Kawamura
    • Organizer
      The 31st International Electric Vehicles Symposium & Exhibition (EVS 31) & International Electric Vehicle Technology Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-level topology based linear amplifier family for realization of noise-less inverters2018

    • Author(s)
      Hidemine Obara, Tatsuki Ohno, and Atsuo Kawamura
    • Organizer
      The 2018 International Power Electronics conference (IPEC2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Position Sensorless Position Control for Dual Solenoid Actuator2018

    • Author(s)
      Sakahisa Nagai, Atsuo Kawmaura
    • Organizer
      The 2018 International Power Electronics conference(IPEC2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Full-wave rectified waveform generation using dead-beat voltage control for DC-DC buck converters to realize high efficiency inverter2018

    • Author(s)
      Sakahisa Nagai, Satoshi Nakazaki, Ito Shogo, Hidemine Obara, Atsuo Kawamura,
    • Organizer
      20th European Conference on Power Electronics and Application(EPE2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Intermittent Pulse Density Modulation of Two Battery HEECS Chopper for Electric Vehicles2018

    • Author(s)
      Ayataro Tamura, Takayuki Ishibashi, Takuro Umihara, Yukinori Tsuruta, Hidemine Obara, and Atsuo Kawamura
    • Organizer
      The 44th Annual Conference of the IEEE Industrial Electronics Society
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Proposal of Soft SOC Balancing Method to Two Battery HEECS chopper used for EV power train2018

    • Author(s)
      Takuro Umihara, Ayataro Tamura, Takayuki Ishibashi, and Atsuo Kawamura
    • Organizer
      The 44th Annual Conference of the IEEE Industrial Electronics Society(IECON2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sensorless Position Estimation with Thermal Compensation for Compact Dual Solenoid Actuator2018

    • Author(s)
      Sakahisa Nagai and Atsuo Kawamura
    • Organizer
      he 44th Annual Conference of the IEEE Industrial Electronics Society(IECON2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Novel Control Method of Grid-Connected Inverter during Multiple-Phase Disconnection of Double Circuit Transmission Line after Multiple-Phase Fault in a Weak Grid2018

    • Author(s)
      Ben liu, Teruo Yoshino, Atsuo Kawamura
    • Organizer
      IEEE PEAC 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seamless Control of Grid-Connected Inverter during Multiple Phases Disconnection of Double Circuit Transmission Line in a Weak Grid2018

    • Author(s)
      劉 奔,吉野 輝夫,河村 篤男
    • Organizer
      平成30年電気学会産業応用部門大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] フライングキャパシタ形線形増幅回路におけるキャパシタ電圧バランス制御の基礎検討2018

    • Author(s)
      大野 達樹,片山 正也,小原 秀嶺,河村 篤男
    • Organizer
      平成30年電気学会産業応用部門大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 2電源HEECS チョッパへの間欠PDM制御導入による出力電圧制御の周波数特性2018

    • Author(s)
      田村 文太郎,石橋 隆之,河村 篤男
    • Organizer
      平成30年電気学会産業応用部門大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Analysis of Load Margin Improvement in Power System with Photovoltaics Considering PCS Capacity by Particle Swarm Optimization2018

    • Author(s)
      Yue Zhuo, Takao Tsuji
    • Organizer
      Proc. of the International Conference on Electrical Engineering (ICEE)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-Speed High/Low Pulse Operation by Deadbeat Control Considering Control Delay in Three-Phase Interleaved DC/DC Converter2018

    • Author(s)
      Yu Hosoyamada, Itsuo Yuzurihara, Yasutaka Fujimoto, and Atsuo Kawamura
    • Organizer
      proc. IEEE Energy Conversion Congress and Exposition (ECCE2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] インバータの超高効率化に向けた主回路およびフィルタの効率に関する実験的検討2018

    • Author(s)
      伊藤 正悟,永井 栄寿,中﨑 智志,小原 秀嶺,河村 篤男
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DC-DCコンバータにおける全波整流出力波形生成のためのデッドビート電圧制御の実験検討2018

    • Author(s)
      中﨑 智志,永井 栄寿,伊藤 正悟,小原 秀嶺,河村 篤男
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2電源HEECSパワートレインにおけるSoCアンバランス問題解決に向けた制御手法の提案2018

    • Author(s)
      海原 拓朗,田村 文太郎,石橋 隆之,河村 篤男
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2電源HEECSチョッパを用いたEVテストベンチでのモード走行効率測定2018

    • Author(s)
      石橋 隆之,田村 文太郎,海原 拓朗,弦田 幸憲,河村 篤男
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Range Extension of Electric Vehicles by Two Battery HEECS Chopper based Power Train2017

    • Author(s)
      Ayataro Tamura, Koji Kobayashi, Yukinori Tsuruta, Kazuaki Kojima, Hidemine Obara, and Atsuo Kawamura
    • Organizer
      IEEE ECCE2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on Application of Multi-Level Converter to Realize Fast Current Control in DC Micro-Grid with Extremely Low Impedance Interconnections2017

    • Author(s)
      Masaya Katayama, Tatsuki Ohno, Hidemine Obara, and Atsuo Kawamura:
    • Organizer
      The 12th IEEE International Conference on Power Electronics and Drive Systems(PEDS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flying-Capacitor Linear Amplifier to Realize Both High-Efficiency and Low Distortion for Power Conversion Applications Requiring High-Quality Waveforms2017

    • Author(s)
      Tatsuki Ohno, Masaya Katayama, Hidemine Obara, and Atsuo Kawamura
    • Organizer
      The 12th IEEE International Conference on Power Electronics and Drive Systems(PEDS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fast Force Control Using Acceleration-aided Kalman Filter and Reaction Force Observer for Probing Systems2017

    • Author(s)
      Sakahisa Nagai, Robert Oboe, Tomoyuki Shimono, and Atsuo Kawamura
    • Organizer
      IEEE IECON2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マルチレベルコンバータによる直流マイクログリッドの擾乱抑制効果に関する基礎検討2017

    • Author(s)
      片山 正也,大野 達樹,小原 秀嶺,河村 篤男
    • Organizer
      平成29年電気学会産業応用部門大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フライングキャパシタ形線形増幅回路の実験検証2017

    • Author(s)
      大野 達樹,片山 正也,小原 秀嶺,河村 篤男
    • Organizer
      平成29年電気学会産業応用部門大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] リニアモータ用磁気浮上形軸受の基礎研究2017

    • Author(s)
      島津 晃大,下野 誠通,河村 篤男
    • Organizer
      平成29年電気学会産業応用部門大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 科研費基盤S:効率99.9%級のエネルギー変換が拓く持続可能グリーン社会の実現

    • URL

      http://www.kawalab.dnj.ynu.ac.jp/j_page/kaken.html

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 多段直流チョッパ回路、および電力変換装置2017

    • Inventor(s)
      河村篤男、弦田幸憲小原秀嶺
    • Industrial Property Rights Holder
      横浜国立大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Funded Workshop] Kakenhi final year workshop2022

    • Related Report
      2021 Annual Research Report

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Published: 2017-06-01   Modified: 2023-10-16  

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