Development of High-Frequency Resonant Inverters for Metal Hardening Applications

• Project/Area Number: 15K05940
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kobe University
• Principal Investigator: Mishima Tomokazu 神戸大学, 海事科学研究科, 准教授 (40370019)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 電力変換 / パワーエレクトロニクス / 高周波誘導加熱 / 高周波インバータ / 周波数変換 / 金属熱処理 / 共振形電力変換 / 誘導加熱 / エネルギー応用 / 電力変換工学 / 高周波電力変換 / 共振形コンバータ / 金熱処理加工 / 非接触エネルギー伝送 / 高効率化 / ソフトスイッチング / 金属熱処理加工

Outline of Final Research Achievements

The high frequency(HF) resonant inverters for metal hardening applications have been developed in this research project. Four kinds of new dc-ac inverters and ac-ac converters have been proposed, and their feasibility has been clarified by experiment. The time-sharing dc-ac HF inverter is developed which has the excellent features of cost-effective power circuit and low switching losses as well as good electromagnetic compatibility. Hugh efficiency over 95% has been confirmed in a 500W-100kHz prototype. The second and third converters developed in the project are based on a resonant inductor-less topology under the principle of time sharing.
The fourth type of proposed resonant convert is a single-stage low frequency- high frequency ac-ac converter. The High-effciency over 97% and sound power quality of line current have been demonstrated by 3kW-40kHz prototype with e ferromagnetic metal induction heating load.

Research Products

• [Journal Article] ZVS Phase Shift PWM-Controlled Single-Stage Boost Full Bridge AC-AC Converter for High Frequency Induction Heating Applications (2017)
  • Author(s): Tomokazu Mishima, Shuichi Sakamoto, and Chiaki Ide
  • Journal Title: IEEE Transactions on Industrial Electronics Volume: 64 Issue: 3 Pages: 2054-2061
  • DOI: 10.1109/tie.2016.2620098
  • NAID: 120006456954
  • Peer Reviewed
• [Journal Article] A Novel Time-Sharing Current-Fed ZCS High Frequency Inverter-applied Resonant DC-DC Converter for Inductive Power Transfer (2016)
  • Author(s): Kyohei Konishi, Tomoakzu Mishima, and Mutsuo Nakaoka
  • Journal Title: Proc. 2016 IEEE Applied Power Electronics Conference and Expositions (APEC) Volume: 1 Pages: 1780-1787
  • Peer Reviewed
• [Journal Article] Current-source ZCS High-frequency resonant inverter based on time-sharing frequency doubler principle and its induction heating applications (2015)
  • Author(s): Tomokazu Mishima, Kyohei Konishi, and Mutsuo Nakaoka
  • Journal Title: Proc. IEEE Power Electronics and drive systems Volume: 1 Pages: 598-603
  • DOI: 10.1109/peds.2015.7203507
  • Peer Reviewed
• [Journal Article] A Time-Sharing Principle-based Current-Fed ZCS High-Frequency Resonant Self-Commutated Inverter for Inductive Power Transfer (2015)
  • Author(s): Tomokazu Mishima, Kyohei Konishi, and Mutsuo Nakaoka
  • Journal Title: Proc. 2015 IEEE Energy Conversion Congress and Exposition (ECCE) Volume: 1 Pages: 2027-2033
  • DOI: 10.1109/ecce.2015.7309946
  • Peer Reviewed
• [Presentation] Latest Development of SiC Power Module-based Single-Stage AC-AC Resonant Converter for High-Frequency Induction Heating Applications (2018)
  • Author(s): Tomokazu Mishima
  • Organizer: Proc. 2018 International Power Electronics Conference (IPEC)
  • Int'l Joint Research
• [Presentation] 高周波IH応用シングルステージZVS-PWM AC-ACコンバータにおける共振周波数追従制御法の一検討 (2017)
  • Author(s): 坂本修一、三島智和、井出千明
  • Organizer: 平成29年電気学会全国大会
  • Place of Presentation: 富山大学
  • Year and Date: 2017-03-15
• [Presentation] 多巻線高周波トランスを導入した 時分割駆動ZCS直並列共振形コンバータ (2017)
  • Author(s): 花内雅紀，三島智和
  • Organizer: 平成29年度電気関係学会関西連合大会講演論文集
• [Presentation] 高周波IH金属熱処理応用シングルステージAC-ACコンバータのZVS動作の検証 (2016)
  • Author(s): 坂本修一、三島智和、井出千明
  • Organizer: 平成28年電気関係学会関西連合大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2016-11-22
• [Presentation] A Phase-Shift PWM-Controlled ZVS Boost Full-Bridge AC-AC Converter for Metal-Surface High-Frequency Induction Heating Applications (2016)
  • Author(s): Shuichi Sakamoto, Tomokazu Mishima, and Chiaki Ide
  • Organizer: Proc. 2016 IEEE Energy Conversion Congress and Exposition (ECCE)
  • Place of Presentation: アメリカ ミルウォーキー
  • Year and Date: 2016-09-18
  • Int'l Joint Research
• [Presentation] 共振電流位相差制御を適用した非接触給電応用時分割電流形ZCS高周波インバータ (2016)
  • Author(s): 小西響平， 三島智和，中岡睦雄
  • Organizer: 電気学会半導体電力変換/モータドライブ合同研究会
  • Place of Presentation: 立命館大学（滋賀県・草津市）
  • Year and Date: 2016-01-22
• [Presentation] 高周波IH金属熱処理応用シングルステージAC-ACコンバータの検討 (2016)
  • Author(s): 坂本修一、三島智和、井出千明
  • Organizer: 第213回パワーエレクトロニクス学会定例研究会
  • Place of Presentation: 神戸大学
• [Presentation] Si-IGBT/SiC-SBDハイブリッドパワーデバイスを適用した非接触給電ZCS高周波共振形DC-DCコンバータ (2015)
  • Author(s): 小西響平， 三島智和，中岡睦雄
  • Organizer: 平成２７年度電気関係学会関西連合大会
  • Place of Presentation: 摂南大学（大阪府・寝屋川市）
  • Year and Date: 2015-11-14
• [Presentation] Si-IGBT/SiC-SBDパワーモジュールを適用した時分割電流形ZCS高周波共振形インバータとその非接触給電応用 (2015)
  • Author(s): 小西響平， 三島智和，中岡睦雄
  • Organizer: 電気学会電子デバイス/半導体電力変換合同研究会
  • Place of Presentation: 長崎歴史文化博物館（長崎県・長崎市）
  • Year and Date: 2015-10-23
• [Presentation] 時分割倍周波電流形ZCS高周波インバータの非接触給電装置への応用 -実証評価第一報- (2015)
  • Author(s): 小西響平， 三島智和，中岡睦雄
  • Organizer: 電子情報通信学会電子通信技術エネルギー/無線電力伝送研究会
  • Place of Presentation: 同志社大学（京都府・京都市）
  • Year and Date: 2015-07-06
• [Remarks] 工業炉・熱関連技術国際展示会「サーモテック２０１７」に出展
  • URL: http://www.kobe-u.ac.jp/NEWS/info/2017_07_25_04.html