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

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  

  • 2015.10
    -
    2016.3

     

  • 2014.4
    -
    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:

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

  • Flying-Capacitor Linear Amplifier With Capacitor Voltage Balancing for High-Efficiency and Low Distortion

    57 ( 1 )   614 - 627   2021.1  [Reviewed]

    DOI Web of Science

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

  • Two-Battery HEECS Inverter with over 99.7% Efficiency at 2.2 kW Output and Measurement Accuracy Based on Loss Breakdown

    Kawamura Atsuo, Nakazaki Satoshi, Ito Shogo, Nagai Sakahisa, Obara Hidemine

    IEEJ JOURNAL OF INDUSTRY APPLICATIONS   9 ( 6 )   663 - 673   2020.11  [Reviewed]

    DOI Web of Science CiNii

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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>A DC-AC conversion efficiency of over 99.7% is experimentally measured using a two battery high efficiency energy conversion system (HEECS) inverter. The accuracy of the efficiency measurement is evaluated by two methods: the direct measurement method and the loss breakdown method. After several measurements, calculations and analyses it is concluded that the measurement error based on the loss breakdown method is 0.04%.</p>

    Other Link: https://ci.nii.ac.jp/naid/130007934370

  • High Performance Transient Response of High/Low Pulse Voltage using Two-Phase Interleaved DC-DC Buck Converter under Half Sampling Time Deadbeat Control

    Kosode Yoshiki, Obara Hidemine, Kawamura Atsuo, Hosoyamada Yu, Suenaga Toyoaki, Yuzurihara Itsuo

    IEEJ JOURNAL OF INDUSTRY APPLICATIONS   9 ( 4 )   444 - 452   2020.7  [Reviewed]

    DOI Web of Science CiNii

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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>One-cycle current deadbeat and half-cycle current deadbeat are implemented to a two-phase interleaved DC-DC buck converter. It is confirmed that output voltage driven and outputted by half-cycle current deadbeat is more stable. When the capacitance of LC filter was reduced 3.22µF to 1µF, rise time, step-up duration of 40V to 120V, is shortened to 10.3µs significantly.</p>

    Other Link: https://ci.nii.ac.jp/naid/130007868249

  • Application of Multi-Level Converter for Fast Current Control in Small-Scale DC Power Network

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

    IEEE Transactions on Industry Applications   55 ( 3 )   2902 - 2909   2019.5  [Reviewed]

    DOI

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

  • Active Gate Control in Half-Bridge Inverters Using Programmable Gate Driver ICs to Improve both Surge Voltage and Converter Efficiency

    Hidemine Obara, Keiji Wada, Koutaro Miyazaki, Makoto Takamiya, and Takayasu Sakurai

    IEEE Transactions on Industry Applications   54 ( 5 )   4603 - 4611   2018.9  [Reviewed]

    DOI

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

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Review Papers 【 display / non-display

  • 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

  • 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

  • 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

    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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    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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    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

  • 変換効率99.9%級の電力変換器の実現

    2017.4 - 2017.5

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

    Investigator(s):河村篤男

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    Grant type:Competitive

  • 直流マイクログリッドにおける高速高精度パワーフロー制御を実現する電力変換器の開発

    2016.4 - 2018.3

    科学研究費補助金  Grant-in-Aid for Young Scientists(B)

    Investigator(s):小原秀嶺

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    Grant type:Competitive

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Other external funds procured 【 display / non-display

  • 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  (Honolulu, USA) 

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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)  (Honolulu, HI, USA) 

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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)  (Cincinnati, OH, USA) 

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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)  (Sapporo, Japan) 

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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)  ( Kaohsiung, Taiwan) 

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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

  • 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  -   

  • 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  -   

  • 無線式パルス発生器のEMC耐性向上に関する研究

    Offer organization: 三喜電機株式会社   Cooperative Research within Japan  

    Project Year: 2018.8  -  2019.1 

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Committee Memberships 【 display / non-display

  • 電気学会 IPEC2018論文委員会

    2017.4  委員

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    Committee type:Academic society 

  • 電気学会 産業応用部門和文誌論文委員会

    2017.4  委員

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    Committee type:Academic society 

  • 電気学会 産業応用部門英文誌論文委員会

    2017.4  委員

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    Committee type:Academic society 

  • 電気学会 IPEC2018実行委員会

    2016.12  委員

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    Committee type:Academic society 

  • 電気学会 産業応用部門編修広報委員会

    2016.4  委員

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    Committee type:Academic society 

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

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

    Role(s): Guest

    Beijing Power Electronics Society Academic Report  Tsinghua University  2016.9