OBARA Hidemine

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Associate Professor

Date of Birth

1987

Research Fields, Keywords

Power electronics, Semiconductor power conversion

Mail Address

E-mail address

Web Site

https://obalab.ynu.ac.jp/

Related SDGs




写真a

The Best Research Achievement in Research Career 【 display / non-display

  • 【Published Thesis】 Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion  2021.01

    【Published Thesis】 Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network  2019.05

    【Published Thesis】 Active Gate Control in Half-Bridge Inverters Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency  2018.09

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 Multilevel Cascaded H-Bridge Linear Amplifier with Unequal DC Capacitor Voltages Using a DC Voltage Source  2022.01

    【Published Thesis】 Systematization of a Multilevel-Topology-Based Linear Amplifier Family for Noiseless DC-AC Power Conversion  2021.11

    【Published Thesis】 Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion  2021.01

    【Published Thesis】 Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network  2019.05

    【Published Thesis】 Active Gate Control in Half-Bridge Inverters Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency  2018.09

Education 【 display / non-display

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    -
    2015.9

    Chiba University   Doctor Course   Completed

Degree 【 display / non-display

  • Docter(Engineering) - Chiba University

  • Master(Engineering) - Chiba University

Campus Career 【 display / non-display

  • 2021.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2019.4
    -
    2021.3

    Concurrently   Yokohama National UniversityFaculty of Engineering  

  • 2016.4
    -
    2019.3

    Concurrently   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Assistant Professor  

External Career 【 display / non-display

  • 2018.4
     
     

    Chuo University  

  • 2021.4
    -
    2022.3

    Kyushu University   Research Institute for Applied Mechanics  

  • 2015.10
    -
    2016.3

     

  • 2014.4
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    2015.9

    JSPS   Special researcher of the Japan Society for the Promotion of Science  

Academic Society Affiliations 【 display / non-display

  • 2011
     
     
     

    IEEE

  • 2007.5
     
     
     

    電気学会

Research Areas 【 display / non-display

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Power engineering

Qualification acquired 【 display / non-display

  • Electric Works Specialist (third kind)

 

Research Career 【 display / non-display

  • Multilevel converter

    Project Year:

Books 【 display / non-display

  • パワーエレクトロニクス学入門(改訂版)

    河村篤男、横山智紀、船渡寛人、星伸一、吉野輝雄、吉本貫太郎、小原秀嶺( Role: Joint author)

    コロナ社  ( ISBN:978-4-339-00980-4

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    Language:Japanese Book type:Scholarly book

  • 交流電源にインターフェイスされる電力変換回路および制御技術

    交流電源にインターフェイスされる電力変換回路および制御技術調査専門委員会( Role: Contributor ,  第2章)

    電気学会 

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    Language:Japanese Book type:Report

Thesis for a degree 【 display / non-display

  • フライングキャパシタマルチレベルコンバータによる電力変換器の波形改善および高パワー密度化に関する研究

    小原 秀嶺

    2015.9

    No Setting   Single Work  

Papers 【 display / non-display

  • Control Scheme for Leading Power Factor Operation of Single-Phase Grid-Connected Inverter Using an Unfolding Circuit

    Miguchi Yasuhiko, Setiadi Hadi, Nasu Yoshiki, Obara Hidemine, Kawamura Atsuo

    IEEE OPEN JOURNAL OF POWER ELECTRONICS   3   468 - 480   2022.7  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • A Modular Multilevel DC-DC Converter With Auxiliary Inductor Circuits for Cell Voltage Balancing and Fast Output Response

    Hidemine Obara, Masaya Katayama, Atsuo Kawamura, Jin Xu, Noboru Shimosato

    IEEE Open Journal of Power Electronics   3   391 - 401   2022.6  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Single Work  

  • Multilevel Cascaded H-Bridge Linear Amplifier with Unequal DC Capacitor Voltages Using a DC Voltage Source

    Setiadi Hadi, Obara Hidemine

    IEEJ Journal of Industry Applications   11 ( 3 )   522 - 530   2022.5  [Reviewed]

    DOI Web of Science CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人 電気学会   Joint Work  

    <p>This study discusses a multilevel cascaded linear amplifier that includes multiple H-bridges. The amplifier operates the MOSFETs in the switch mode and active state. The MOSFETs in the switch mode change the voltage level to reduce the ripple voltage, which is filtered using the MOSFETs in the active state. Thus, the conversion efficiency of the amplifier is improved. The MOSFETs in the switch mode also control the charging state of the capacitor on the DC-side of each H-bridge to maintain the DC capacitor voltages. The amplifier can perform real power conversion with one DC voltage source as it can regulate the DC capacitor voltage of each H-bridge. Moreover, DC capacitor voltages are regulated at various values to further reduce the ripple filtered by MOSFETs in the active state. Lastly, DC capacitor voltage control was verified through a experiment using three H-bridges, and the measured conversion efficiency of the amplifier with unequal DC capacitor voltages was 87.9%.</p>

  • Minimization of DC-Link Capacitance and Improved Operational Performance of a 5-Level Hybrid Multilevel DC-Link Inverter

    Almachius Kahwa, Hidemine Obara, Yasutaka Fujimoto

    IEEE Open Journal of Power Electronics   2022.3  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Proposal of Virtual Transformer-based Back-to-Back Asynchronous Loss Measurement using a Single Set of Measurement Instruments for One Inverter and Experimental Verification

    Kawamura Atsuo, Nasu Yoshiki, Miguchi Yasuhiko, Setiadi Hadi, Obara Hidemine

    IEEJ JOURNAL OF INDUSTRY APPLICATIONS   11 ( 1 )   175 - 184   2022.1  [Reviewed]

    DOI Web of Science CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:一般社団法人 電気学会   Joint Work  

    <p>In this study, a virtual transformer-based loss measurement method is proposed for inverter power conversion efficiency measurements, and the accuracy of this method is theoretically analyzed. This concept is further extended to a practical measurement procedure, wherein asynchronous loss measurements are conducted for powering and regenerating operations using a single set of measurement instruments. The average efficiency can be obtained with a very high accuracy after calibration of the measurement instruments. A high-efficiency system inverter was selected as the converter under test, and its efficiency and accuracy were experimentally measured and validated. An efficiency of 99.75% ± 0.006% was obtained at an output of 1600W.</p>

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Review Papers 【 display / non-display

  • 十見百聞 伝統と革新の融合によるサステナブルな建築技術―業界を支える建築研究所の研究開発―

    小原 秀嶺, 堤 昂哉, 古川 眞輝

    電気学会誌   142 ( 3 )   2022.3

    DOI

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • 十見百聞 エネルギーの「もったいない」を追求する―省エネと快適性を両立するオートメーション技術―

    小原 秀嶺, 石橋 隆之, 伊藤 正悟, 海原 拓朗, 小袖 義貴

    電気学会誌   139 ( 7 )   2019.7

    DOI

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • Students and Young Engineers Meeting Held at IPEC 2018-ECCE Asia

    Ryuji Iijima, Yoshikazu Kuwabara, Daiki Yamaguchi, Yuta Yanagisawa, Yoshihiro Miwa, Hidemine Obara, … Show more authors

    IEEE Power Electronics Magazine   5 ( 3 )   2018.9

    DOI

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    Authorship:Corresponding author   Language:English   Publishing type:Meeting report   Single Work  

  • ソーラー・デカスロン・ヨーロッパ2014-千葉大学の挑戦

    川瀬貴晴,田島翔太,小原 秀嶺,羽澄亮平,那須智子

    太陽エネルギー学会誌「太陽エネルギー」   40 ( 6 )   53 - 61   2014.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Single Work  

Industrial Property Rights 【 display / non-display

  • 線形増幅器、及び電力変換装置

    小原 秀嶺,大野 達樹,片山 正也,河村 篤男

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    Application no:特願2017-47150  Date applied:2017.3

    Country of applicant:Domestic  

  • ゲート駆動装置

    小原 秀嶺,和田 圭二

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    Application no:特願2016-166831  Date applied:2016.8

    Country of applicant:Domestic  

  • 電力変換回路および装置

    佐藤 之彦,小原 秀嶺,中島 昭,大橋 弘通,西澤 伸一

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    Application no:特願2013-186885  Date applied:2013.9.10

    Country of applicant:Domestic  

  • マルチレベル電力変換回路および装置

    佐藤 之彦,小原 秀嶺,大橋 弘通,中島 昭,西澤 伸一

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    Application no:特願2012-201460  Date applied:2012.9.13

    Patent/Registration no:特許2014-535533  Date issued:2016.10.21

    Country of applicant:Domestic  

Awards 【 display / non-display

  • 論文査読促進賞

    2021.5   電気学会産業応用部門  

    Individual or group name of awards:小原秀嶺

  • Best Paper Award

    2019.11   IEEE International Future Energy Electronics Conference (IFEEC) 2019  

    Individual or group name of awards:Hidemine Obara

  • 部門活動功労賞

    2019.9   電気学会産業応用部門  

    Individual or group name of awards:小原秀嶺

  • 電気学会半導体電力変換研究会 優秀論文発表賞

    2013.6   電気学会  

    Individual or group name of awards:小原 秀嶺

  • 電気学会産業応用部門大会 優秀論文発表賞

    2011.9   電気学会  

    Individual or group name of awards:小原 秀嶺

Grant-in-Aid for Scientific Research 【 display / non-display

  • 三次元運動制御を実現する6自由度円筒リニアモータの創製

    Grant number:21H01306  2021.4 - 2024.3

    Grant-in-Aid for Scientific Research(B)

    Investigator(s):下野 誠通

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    Authorship:Coinvestigator(s) 

  • エネルギー回生可能な革新的双方向アクチュエータの実現

    Grant number:21H04556  2021.4 - 2024.3

    Grant-in-Aid for Scientific Research(A)

    Investigator(s):藤本 康孝

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    Authorship:Coinvestigator(s) 

  • 電磁ノイズを発生しないパワーエレクトロニクス基盤技術の創生

    2020.4 - 2023.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(B)

    Investigator(s):小原 秀嶺

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    Authorship:Principal investigator  Grant type:Competitive

  • フライングキャパシタ線形増幅回路の超多直列化によるノイズレスインバータの実現

    2018.4 - 2020.3

    科学研究費補助金 

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    Authorship:Principal investigator  Grant type:Competitive

  • 効率99.9%級のエネルギー変換が拓く持続発展可能グリーン社会の実現

    2017.6

    科学研究費補助金  Grant-in-Aid for Scientific Research(S)

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    Grant type:Competitive

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Other external funds procured 【 display / non-display

  • SSTの高性能化に向けた回路・デバイス・制御技術の統合技術開発

    2021.12 - 2026.3

    Ministry of Education, Culture, Sports, Science and Technology  革新的パワーエレクトロニクス創出基盤技術研究開発事業

  • デジタルアクティブゲート技術を駆使したノイズフリー・パワエレ電力ネットワークの創生

    2021.10 - 2024.9

    NEDO先導研究プログラム 未踏チャレンジ2050

  • 新世代Si-IGBTと応用基本技術の研究開発

    2017.4 - 2020.3

    NEDO  低炭素社会を実現する次世代パワーエレクトロニクスプロジェクト

    Investigator(s):平本俊郎

Presentations 【 display / non-display

  • Study on Application of Multi-Level Converter to Realize Fast Current Control in DC Micro-Grid with Extremely Low Impedance Interconnections

    Masaya Katayama, Tatsuki Ohno, Hidemine Obara, and Atsuo Kawamura

    IEEE PEDS 2017 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Honolulu, USA  

    DOI: 10.1109/PEDS.2017.8289205

  • Browse Conferences > Power Electronics and Drive S... Flying-capacitor linear amplifier to realize both high-efficiency and low distortion for power conversion applications requiring high-quality waveforms

    Tatsuki Ohno, Masaya Katayama, Hidemine Obara, Atsuo Kawamura

    2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS) 

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    Event date: 2017.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Honolulu, HI, USA  

    DOI: 10.1109/PEDS.2017.8289202

  • Range extension of electric vehicles by two battery HEECS chopper based power train

    Ayato Tamura, Koji Kobayashi, Yukinori Tsuruta, Kazuaki Kojima, Hidemine Obara, Atsuo Kawamura

    2017 IEEE Energy Conversion Congress and Exposition (ECCE) 

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    Event date: 2017.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Cincinnati, OH, USA  

    DOI: 10.1109/ECCE.2017.8096770

  • Power electronics 2.0: IoT-connected and Al-controlled power electronics operating optimally for each user

    Makoto Takamiya, Koutaro Miyazaki, Hidemine Obare True Sai

    2017 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD) 

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    Event date: 2017.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Sapporo, Japan  

    10.23919/ISPSD.2017.7988875

  • Total volume reduction of passive components in Grid-connected converters by introducing flying capacitor multilevel topology

    Sae Mochidate, Yukihiko Sato, Tomotate Ito, Hidemine Obara

    2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) 

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    Event date: 2017.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue: Kaohsiung, Taiwan  

    DOI: 10.1109/IFEEC.2017.7992098

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Past of Collaboration and Commissioned Research 【 display / non-display

  • 電動ハイブリッド推進系用パワエレ機器性能推定ツール構築

    Offer organization: 宇宙航空研究開発機構(JAXA)   Funded Research offered by Enterprises  

    Project Year: 2021.8  -  2022.2 

  • 高昇圧高効率電力変換器の研究

    Offer organization: アルプスアルパイン株式会社,千葉大学   Cooperative Research within Japan  

    Project Year: 2021.6  -  2022.3 

  • パワー半導体パッケージおよびパワーモジュールの内部熱インピーダンス抽出法に関する研究と開発

    Offer organization: アンソフト・スピリット株式会社   Cooperative Research within Japan  

    Project Year: 2020.11  -  2021.10 

  • パワーエレクトロニクス用無線センサの開発

    Cooperative Research within Japan  

    Project Year: 2019.7  -  2020.1 

  • インテリジェントデジタルモジュールを実現する多直列制御技術のFS研究

    Offer organization: 一般社団法人NPERC-J   Funded Research offered by Enterprises  

    Project Year: 2019.4  -  2021.9 

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Charge of on-campus class subject 【 display / non-display

  • 2022   An Introduction to Programming

    College of Engineering Science

  • 2022   Basic Programming

    College of Engineering Science

  • 2022   Programing I

    College of Engineering Science

Charge of off-campus class subject 【 display / non-display

  • パワーエレクトロニクス

    2018.4 Institution:中央大学

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    Level:Undergraduate (specialized) 

 

Committee Memberships 【 display / non-display

  • 電気学会令和4年全国大会グループ委員会

    2021.6 - 2022.6  6グループ委員

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    Committee type:Academic society 

  • IPEC2022組織委員会

    2020.7 - 2023.3  幹事

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    Committee type:Academic society 

  • 電気学会2020年産業応用部門オンライン・ハイブリッド研究会推進WG

    2020.6  委員

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    Committee type:Academic society 

  • 電気学会 IPEC2022実行委員会

    2019.12  幹事

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    Committee type:Academic society 

  • 電気学会産業応用部門英文論文誌戦略委員会

    2019.6  委員

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    Committee type:Academic society 

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Social Contribution(Extension lecture) 【 display / non-display

  • 横浜パワーエレクトロニクスカレッジ

    Role(s): Lecturer, Planner

    YUVEC  2020.4

  • Impact of Multi-Level Converter on Motion Control and Micro-Grid Applications

    Role(s): Guest

    Beijing Power Electronics Society Academic Report  Tsinghua University  2016.9