Updated on 2025/09/30

写真a

 
TSUNATA Ren
 
Organization
Faculty of Environmental, Life, Natural Science and Technology Assistant Professor
Position
Assistant Professor
External link

Degree

  • Ph.D. (Engineering) ( 2021.3   Hokkaido University )

Research Interests

  • Traction applications

  • Rotational machine

  • Power electronics

  • Electric motor

Research Areas

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

Education

  • Hokkaido University   大学院情報科学院  

    2019.4 - 2021.3

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  • Hokkaido University   大学院情報科学研究科  

    2015.4 - 2017.3

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  • Hokkaido University   工学部  

    2013.4 - 2015.3

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Research History

  • Okayama University   大学院環境生命自然科学学域

    2023.10

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  • Okayama University   The Graduate School of Environmental, Life, Natural Science and Technology   Assistant Professor

    2023.4

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  • Okayama University   大学院学術研究院 自然科学学域   Assistant Professor

    2022.4 - 2023.3

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  • Okayama University   The Graduate School of Natural Science and Technology

    2021.4 - 2022.3

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Professional Memberships

 

Papers

  • Impact of SMC Property on Axial-Flux Permanent Magnet Machine in Traction Applications Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    IEEE Transactions on Industry Applications   61 ( 5 )   6848 - 6860   2025.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/tia.2025.3556657

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  • Time-Efficient and Practical Design Method for Skewed PMSMs: Integrating Numerical Calculations With Limited 3-D-FEA Reviewed

    Ren Tsunata, Yu Ichimura, Masatsugu Takemoto, Jun Imai

    IEEE Open Journal of the Industrial Electronics Society   6   1370 - 1386   2025.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/ojies.2025.3599390

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  • Hybrid Excitation Variable Flux Memory Motor for Enhancing Output Power and Efficiency During WLTC Driving Cycle in Traction Applications Reviewed

    Riku Shinohara, Ren Tsunata, Masatsugu Takemoto, Jun Imai

    2025 IEEE International Electric Machines and Drives Conference (IEMDC)   859 - 864   2025.5

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/iemdc60492.2025.11060964

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  • Development of 50 krpm Ultra-High Speed IPMSM For EV Traction Reviewed

    Ren Tsunata, Masaki Kimura, Masatsugu Takemoto, Jun Imai

    7th International Electric Vehicle Technology Conference 2025 (EVTeC2025)   1 - 6   2025.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

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  • Investigation Into Suitable Number of Stator Slots of MW Class SPMSM Considering Laminated Rotor in Hybrid Propulsion System of Aircraft Reviewed

    Takuya Moriki, Ren Tsunata, Masatsugu Takemoto, Jun Imai, Takehiro Jikumaru, Tomoya Yamamoto

    2025 IEEE International Conference on Mechatronics (ICM)   1 - 6   2025.2

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/icm62621.2025.10934917

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  • International Conference on Electrical Machines (ICEM2024) 報告

    綱田錬

    電気学会論文誌B   2025.2

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  • Development of a Megawatt-class Engine Embedded Electric Machine for Aircraft Electrification Reviewed

    Tomoya Yamamoto, Takehiro Jikumaru, Ren Tsunata, Masatsugu Takemoto

    Proceedings - 27th International Conference on Electrical Machines and Systems, ICEMS2024   2024.11

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  • Basic Investigation of an IPMSM Employing Rotor Skew For Enhancing Output Power Under Field Weakening Control Reviewed

    Yu Ichimura, Ren Tsunata, Masatsugu Takemoto, Jun Imai

    Proceedings - IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society   1 - 6   2024.11

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  • Skewing Technology for Permanent Magnet Synchronous Motors: A Comprehensive Review and Recent Trends Reviewed

    Ren Tsunata, Masatsugu Takemoto

    IEEE Open Journal of the Industrial Electronics Society   5   1251 - 1273   2024.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/ojies.2024.3491295

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  • Adaptive Design of Bilateral Control Systems for Multivariate Reference Models Reviewed

    Kota Kunihiro, Jun Imai, Masatsugu Takemoto, Ren Tsunata

    2024 24th International Conference on Control, Automation and Systems (ICCAS)   1194 - 1195   2024.10

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    Authorship:Last author   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.23919/iccas63016.2024.10773360

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  • Comparative Study of Axial-Flux Machines Between Double Stator and YASA Structures Regarding Output Power Density and Efficiency in Traction Applications Reviewed

    Yuki Nakano, Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    Proceedings - 2024 IEEE Energy Conversion Congress and Exposition (ECCE)   5219 - 5225   2024.10

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  • Design of 160 kW, 50000 rpm Ultra-High Speed Traction Motor For Enhancing Output Power Density:Comparison of Different Rotor Core Materials Reviewed

    Masaki Kimura, Ren Tsunata, Masatsugu Takemoto, Jun Imai

    Proceedings - 2024 IEEE Energy Conversion Congress and Exposition (ECCE)   5083 - 5083   2024.10

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  • Impact of SMC Property on Axial Flux Machine Employing Ferrite PM in Traction Applications Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    2024 International Conference on Electrical Machines (ICEM)   1 - 7   2024.9

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/icem60801.2024.10700121

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  • Superior Efficiency Under PWM Harmonic Current in an Axial-Flux PM Machine for HEV/EV Traction: Comparison With a Radial-Flux PM Machine Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    IEEE Transactions on Industry Applications   60 ( 5 )   6736 - 6751   2024.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/tia.2024.3410241

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  • Designing and Prototyping an Axial-Flux Machine Using Ferrite PM and Round Wire for Traction Applications: Comparison With a Radial-Flux Machine Using Nd-Fe-B PM and Rectangular Wire Reviewed

    Ren Tsunata, Kosuke Izumiya, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    IEEE Transactions on Industry Applications   60 ( 3 )   3934 - 3949   2024.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/tia.2024.3371959

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  • Proposal of a Novel Air-Gap Structure For Magnet-Less 3-Axis Active Control-Type Magnetic Bearing With Cylindrical Rotor: Reducing Axial Length of Turbomachinery System Reviewed

    Yuto Sho, Masatsugu Takemoto, Ren Tsunata, Jun Imai

    IEEE International Future Energy Electronics Conference (IFEEC2023)   2023.11

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  • The Superiority of Efficiency Considering Harmonic Current caused by PWM inverter in Axial-Flux PM Machine Using Ferrite PM for Traction applications: Comparison to Radial-Flux PM Machines Using NdFeB PM Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    Proceedings - 2023 IEEE Energy Conversion Congress and Exposition (ECCE)   2023.11

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  • Teaching Method for Electrical Machines Focusing on Differences Between Simulation and Experimental Verification Reviewed

    Ren Tsunata, Masatsugu Takemoto

    2023 IEEE 10th International Conference on E-Learning in Industrial Electronics (ICELIE)   2023.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/icelie58531.2023.10313104

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  • A Proposal of an Axial-Flux Permanent-Magnet Machine Employing SMC Core With Tooth-Tips Constructed by One-Pressing Process: Improving Torque and Manufacturability Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    IEEE Access   11   109435 - 109447   2023.10

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/access.2023.3321829

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  • Design and Analysis of Hybrid-Excitation Variable Flux Memory Motor for Traction Applications: Improving Output Power in High-Speed Area During Six-Step Operation Mode Reviewed

    Ren Tsunata, Keito Yokomichi, Masatsugu Takemoto, Jun Imai

    IEEE Access   11   82024 - 82036   2023.8

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/access.2023.3301809

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  • Hybrid-Excitation Variable Flux Memory Motor for Enhancing Output Power density in Traction Applications in Six-Step Operation Mode Reviewed

    Ren Tsunata, Keito Yokomichi, Masatsugu Takemoto, Jun Imai

    2023 IEEE International Magnetics Conference (INTERMAG)   2023.5

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  • Reduction in Eddy Current Loss of Special Rectangular Windings in High-Torque IPMSM Used for Wind Generator Reviewed

    Xianji Tao, Masatsugu Takemoto, Ren Tsunata, Satoshi Ogasawara

    IEEE Access   11   4740 - 4751   2023

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    Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/access.2023.3236105

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  • Novel Rotor Structure Employing Large Flux Barrier and Disproportional Airgap for Enhancing Efficiency of IPMSM Adopting Concentrated Winding Structure Reviewed

    Xianji Tao, Masatsugu Takemoto, Ren Tsunata, Satoshi Ogasawara

    IEEE Access   11   2848 - 2862   2023

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    Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/access.2022.3232843

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  • Comparison of Thermal Characteristics in Various Aspect Ratios for Radial-Flux and Axial-Flux Permanent Magnet Machines Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    IEEE Transactions on Industry Applications   1 - 15   2023

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    DOI: 10.1109/tia.2023.3255845

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  • Evaluation of Switching Ripple Effect on Efficiency of Novel Spoke-Type IPMSM Using Dy-Free Magnet -Comparison to IPMSM using NbFeB Magnet Reviewed

    Jiseong Park, Ren Tsunata, Masatsugu Takemoto, Koji Orikawa, Satoshi Ogasawara

    Proceedings - 2022 International Conference on Electrical Machines and Systems, ICEMS 2022   2022.11

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/icems56177.2022.9983187

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  • A Proposal of Hybrid Excitation Variable Flux Memory Motor Having Field Winding with Magnetization Function in the Rotor Reviewed

    Keito Yokomichi, Ren Tsunata, Masatsugu Takemoto, Jun Imai

    Proceedings - 2022 IEEE Energy Conversion Congress and Exposition (ECCE)   2022.10

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    DOI: 10.1109/ecce50734.2022.9947959

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  • Dividing Repulsion Permanent Magnets for Enhancing Suspension Force Characteristics in a 1-axis Active Control Type Magnetic Levitation Pump Reviewed

    Koki Terada, Masatsugu Takemoto, Ren Tsunata, Jun Imai

    Proceedings - IECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society   2022.10

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/iecon49645.2022.9968536

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  • Hybrid-Type PM Motor for Electric Vehicle Traction with improved Reluctance Torque Reviewed

    Jiseong Park, Ren Tsunata, Masatsugu Takemoto, Koji Orikawa, Satoshi Ogasawara

    Journal of the Japan Society of Applied Electromagnetics and Mechanics   2022.10

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  • Comparison of Thermal Characteristic in Various Aspect Ratios of Radial-Flux and Axial-Flux Permanent Magnet Machines Reviewed

    Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    Proceedings - 2022 IEEE Energy Conversion Congress and Exposition (ECCE)   2022.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IEEE  

    DOI: 10.1109/ecce50734.2022.9948211

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  • Examination of the Characteristics of a Hybrid Excitation Motor with Field Winding on a Rotor for Electric Vehicle and Hybrid Vehicle Traction Reviewed

    Ryusyo Nakazawa, Masatsugu Takemoto, Satoshi Ogasawara, Ren Tsunata, Koji Orikawa

    Proceedings - IECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society   2022.10

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  • Axial-Flux Machine Using Ferrite PM and Round Wire Competitive to Radial-Flux Machine Using Nd-Fe-B PM for HEV Traction Reviewed

    Kosuke Izumiya, Ren Tsunata, Masatsugu Takemoto, Jun Imai, Tatsuya Saito, Tomoyuki Ueno

    Proceedings - 2022 International Conference on Electrical Machines, ICEM 2022   2022.9

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    DOI: 10.1109/icem51905.2022.9910903

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  • SMC Development Guidelines for Axial Flux PM Machines Employing Coreless Rotor Structure for Enhancing Efficiency Based on Experimental Results Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Tatsuya Saito, Tomoyuki Ueno

    IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS   58 ( 3 )   3470 - 3485   2022.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TIA.2022.3154336

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  • Examination of enhancing efficiency of axial gap motor in high speed and high torque region by adopting neodymium bonded magnet Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Koji Orikawa, Tatsuya Saito, Tomoyuki Ueno

    IEEJ Journal of Industry Applications   10 ( 4 )   487 - 496   2021.7

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1541/ieejjia.20004135

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  • Variable Flux Memory Motor Employing Double-Layer Delta-Type PM Arrangement and Large Flux Barrier for Traction Applications Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Koji Orikawa

    IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS   57 ( 4 )   3545 - 3561   2021.7

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TIA.2021.3068329

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  • Investigation of Dy-Free Hybrid PM Motor Based on Spoke-Type Rotor for Automotive Applications Reviewed

    Jiseong Park, Ren Tsunata, Masatsugu Takemoto, Koji Orikawa, Satoshi Ogasawara

    2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021   2021.5

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/IEMDC47953.2021.9449493

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  • Design of Hybrid-Type PM Motor for Electric Vehicle Traction Using Trapezoidal Ferrite-PM to Improve Reluctance Torque Reviewed

    Jiseong Park, Ren Tsunata, Masatsugu Takemoto, Koji Orikawa, Satoshi Ogasawara

    311   2021.4

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  • Examination of enhancing efficiency of axial gap motor in high speed and high torque region by adopting neodymium bonded magnet

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Koji Orikawa, Tatsuya Saito, Tomoyuki Ueno

    IEEJ Transactions on Industry Applications   140 ( 12 )   939 - 948   2020.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1541/ieejias.140.949

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  • Examination of Enhancing Efficiency of Axial Gap Motor in High Speed and High Torque Region by Adopting Neodymium Bonded Magnet Reviewed

    Tsunata Ren, Takemoto Masatsugu, Ogasawara Satoshi, Orikawa Koji, Saito Tatsuya, Ueno Tomoyuki

    IEEJ Transactions on Industry Applications   140 ( 12 )   939 - 948   2020.12

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Institute of Electrical Engineers of Japan  

    In recent years, more than half of the electric power generated in the country is being consumed by motors. Therefore, high performance motors are desired especially for industrial applications. In addition, it is desirable to reduce motor size. Recently, motors called axial gap type have been proposed and researched to achieve both high torque and small size. Axial gap motors are generally suitable for applications requiring flat shape such as a disk. Conventional axial gap motors frequently employ Nd sintered permanent magnets (PMs) to achieve high torque. However, axial gap motors with Nd sintered PMs are not very efficient at high rotational speed due to the eddy current loss arising in the PM. Axial gap motors that use ferrite PMs have also been proposed, but torque density is low. In this paper, an axial gap motor using Nd bonded PMs is proposed to achieve high efficiency in the high-speed and high-torque region. The proposed axial gap motor using Nd bonded PM is compared with other axial gap motors employing Nd sintered PM and ferrite PM through 3D-FEA and experiments. Consequently, it was found that the Nd bonded PM is more effective in enhancing the efficiency of an axial gap motor in the high-speed and high-torque region, compared with Nd sintered PM and ferrite PM.

    DOI: 10.1541/ieejias.140.939

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    Other Link: http://id.ndl.go.jp/bib/030793591

  • Investigation of Enhancing Reluctance Torque of a Delta-Type Variable Flux Memory Motor Having Large Flux Barrier for EV/HEV Traction Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Koji Orikawa

    2020 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)   53 - 60   2020.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/ECCE44975.2020.9235600

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  • Development Policy of SMC to Improve Efficiency of Axial Gap Motor Employing Coreless Rotor Structure Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Tatsuya Saito, Tomoyuki Ueno

    2020 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM), VOL 1   1644 - 1650   2020.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/ICEM49940.2020.9270995

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  • Investigation of Development Policy of SMC Material for High Efficiency over a Wide Operating Range in Axial Gap Motors Having Coreless Rotor Structure Reviewed

    TSUNATA Ren, TAKEMOTO Masatsugu, OGASAWARA Satoshi, SAITOH Tatsuya, ENOKIZONO Yuta, UENO Tomoyuki

    Journal of the Japan Society of Applied Electromagnetics and Mechanics   28 ( 2 )   146 - 155   2020

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Applied Electromagnetics and Mechanics  

    <p> In recent years, electric motors having flat shape are desired in order to minimize system size as well as enhancing the efficiency. Therefore, axial gap motors (AGMs) have attracted significant attention because they can achieve higher torque density in flat shape than conventional radial gap motors. In general, AGMs employ Soft magnetic composite (SMC) for stator core since they have three dimensional magnetic paths. If AGMs employ SMC which has low iron loss characteristic, the efficiency can be improved. However, average torque is decreased because SMC basically has tradeoff relationship between iron loss characteristic and permeability. Hence, in this research, AGM having coreless rotor structure that torque performance is not easily affected by the permeability of SMC is proposed. In this paper, many virtual SMC materials which have different iron loss and permeability is considered for the proposed AGM. Finally, suitable SMC characteristic to enhance the efficiency over a wide operating range is revealed by three-dimensional finite element analysis (3D-FEA).</p>

    DOI: 10.14243/jsaem.28.146

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  • A Proposal of Ultra-Flat Axial Gap Motor Employing C-type SMC Core Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Tomoyuki Ueno, Tatsuya Saitoh

    45TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY (IECON 2019)   874 - 879   2019.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1109/IECON.2019.8927384

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  • A Proposal of a Delta-Type Salient Pole Variable Flux Memory Motor Having Large Flux Barrier for Traction Applications Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Koji Orikawa

    Proceedings - 2019 IEEE Energy Conversion Congress and Exposition (ECCE)   6054 - 6061   2019.10

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    DOI: 10.1109/ECCE.2019.8913191

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  • Development and Evaluation of an Axial Gap Motor Using Neodymium Bonded Magnet Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Asako Watanabe, Tomoyuki Ueno, Koji Yamada

    IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS   54 ( 1 )   254 - 262   2018.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1109/TIA.2017.2710123

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  • Investigation of enhancing efficiency and acceleration in a flat shape axial gap motor having high torque characteristic Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Asako Watanabe, Tomoyuki Ueno, Koji Yamada

    Proceedings - 2017 IEEE International Conference on Mechatronics, ICM 2017   278 - 283   2017.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Institute of Electrical and Electronics Engineers Inc.  

    DOI: 10.1109/ICMECH.2017.7921117

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  • Development and evaluation of an axial gap motor with neodymium bonded magnet Reviewed

    Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Asako Watanabe, Tomoyuki Ueno, Koji Yamada

    Proceedings - 2016 22nd International Conference on Electrical Machines, ICEM 2016   272 - 278   2016.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Institute of Electrical and Electronics Engineers Inc.  

    DOI: 10.1109/ICELMACH.2016.7732538

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Books

  • コアレス回転子構造を用いたアキシャルギャップモータの高効率化に関する研究

    綱田 錬( Role: Sole author)

    北海道大学  2021.3 

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MISC

  • 巻線構造及び極数・スロット数が巻線渦電流損に及ぼす影響を考慮した自動車駆動用アキシャルギャップモータの設計

    渡辺侑, 綱田錬, 竹本真紹, 今井純, 和泉谷洸輔, 齋藤達哉, 上野友之

    電気学会産業応用部門大会講演論文集   ( 3-1 )   57 - 62   2025.8

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  • IPMモータの静止時における広帯域等価回路と周波数応答

    井出一正, 小笠原悟司, 塩﨑宏司, 綱田錬, 竹本真紹, 佐藤大介, 財前善彰

    電気学会産業応用部門大会講演論文集   ( 3-42 )   217 - 222   2025.8

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  • IPMモータのステータに対する広帯域等価回路と周波数応答

    井出一正, 小笠原悟司, 塩﨑宏司, 綱田錬, 竹本真紹, 佐藤大介, 財前善彰

    電気学会マグネティックス研究会資料   MAG-25-059   2025.6

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  • 高軸支持力を発生できる1軸能動制御型磁気浮上ポンプの実機特性の検証

    近藤颯人, 竹本真紹, 綱田錬, 今井純

    第37回「電磁力関連のダイナミクス」シンポジウム(SEAD37)   22B3-4   2025.5

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  • 回転子に界磁巻線を備えた自動車駆動用ハイブリッド界磁モータの界磁巻線量と出力の関係

    芝大登, 竹本真紹, 綱田錬, 今井純

    静止器/回転機合同研究会資料(SA-25-054/RM-24-054)   2025.3

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  • 固定子に界磁巻線を備えた自動車駆動用ハイブリット界磁モータの回転子表面形状に関する検討

    市川隆一, 竹本真紹, 綱田錬, 今井純

    静止器/回転機合同研究会資料(SA-25-053/RM-24-053)   2025.3

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  • 極異方性磁石を用いたシングルステータ・シングルロータ型アキシャルギャップモータにおける極スロットコンビネーションの検討

    熊本遥希, 竹本真紹, 綱田錬, 今井純

    静止器/回転機合同研究会資料(SA-25-050/RM-24-050)   2025.3

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  • フェライト磁石を用いた大トルクIPMSMの最大速度における出力と磁石量の関係

    佐藤隼太郎, 竹本真紹, 綱田錬, 今井純

    静止器/回転機合同研究会資料(SA-25-049/RM-24-049)   2025.3

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  • 大型ドローン用高出力密度モータの回転子構造に関する検討

    大津隆真, 竹本真紹, 綱田錬, 今井純, 太田智, 坂本宏紀, 疋田一馬, 沖津隆志

    静止器/回転機合同研究会資料(SA-25-057/RM-24-057)   2025.3

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  • 航空機用ハイブリッド推進システムのMW級SPMSMにおける 高効率化のための回転子積層時の適切なスロット数の検討

    森木拓哉, 綱田 錬, 竹本真紹, 今井 純, 軸丸武弘, 山本智也

    静止器/回転機合同研究会 (SA-24-077, RM-24-115)   2024.9

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  • 回転子に界磁巻線を設けた可変磁力メモリーモータにおける高出力密度化とWLTCモード走行時の高効率化の両立

    篠原 陸, 綱田 錬, 竹本真紹, 今井 純

    静止器/回転機合同研究会 (SA-24-080, RM-24-118)   2024.9

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  • 高出力密度化を目的とした160 kW, 50000 rpmの超高速自動車駆動用モータの初期検討 -回転子コアが出力密度に及ぼす影響について-

    木村 将希, 綱田 錬, 竹本真紹, 今井 純

    電気学会産業応用部門大会講演論文集   ( 3-55 )   333 - 338   2024.8

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  • 自動車駆動用アキシャルギャップモータにSMC特性が及ぼす影響の評価と損失低減の検討

    綱田錬, 竹本真紹, 今井純, 齋藤達哉, 上野友之

    電気学会産業応用部門大会講演論文集   ( 3-44 )   281 - 286   2024.8

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  • 自動車駆動用アキシャルギャップモータにおけるYASA型とDSSR型の出力密度および効率の比較検討

    中野佑紀, 綱田 錬, 竹本真紹, 今井 純, 齋藤達哉, 上野友之

    モータドライブ/回転機/自動車合同研究会 (MD-24-070, RM-24-039, VT-25-007)   2024.7

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  • 回転子スキューによるIPMSMの弱め磁束制御時の出力向上に関する基礎検討

    市村 友, 綱田 錬, 竹本真紹, 今井 純

    モータドライブ/回転機/自動車合同研究会 (MD-24-095, RM-24-064, VT-25-032)   2024.7

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  • 商用電源駆動可能な2極シンクロナスリラクタンスモータの基礎検討

    井上 雄介, 竹本 真紹, 綱田 錬, 今井 純

    モータドライブ/家電・民生合同研究会   ( MD-24-062, HCA-24-008 )   2024.3

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  • 集中巻固定子を用いたIPMSMにおける固定子ティース先端形状が出力に及ぼす影響の検討

    丸尾 啓太, 竹本 真紹, 綱田 錬, 今井 純

    モータドライブ/家電・民生合同研究会   ( MD-24-060, HCA-24-006 )   2024.3

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  • PWM駆動時における自動車駆動用アキシャルギャップモータに対する効率優位性の検証

    綱田錬, 竹本真紹, 今井純, 齋藤達哉, 上野友之

    電気学会産業応用部門大会講演論文集(3-24)   201 - 206   2023.8

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  • 円筒形回転子を備えた磁石レス3軸磁気軸受の軸長短縮に関する検証

    正有徒, 竹本真紹, 綱田錬, 今井純

    電気学会産業応用部門大会講演論文集(3-6)   123 - 128   2023.8

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  • 界磁巻線に着減磁機能を付加したハイブリッド界磁メモリーモータの1パルス駆動時の出力特性

    横道圭人, 綱田錬, 竹本真紹, 今井純

    電気学会全国大会講演論文集   2023   2023.3

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  • C型SMCコアを用いた超扁平アキシャルギャップモータの実機検証

    綱田錬, 竹本真紹, 今井純, 齋藤達哉, 上野友之

    電気学会全国大会講演論文集   2023   2023.3

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  • 提案するハイブリッド界磁モータによる1パルス駆動時の出力向上効果の検討

    山内 佑馬, 竹本 真紹, 綱田 錬, 今井 純

    回転機研究会資料   ( RM-22-120 )   2022.10

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  • シンクロナスリラクタンス型ベアリングレスモータのブリッジ位置と幅の最適化による力率向上の検討

    山川 幸祐, 竹本 真紹, 綱田 錬, 今井 純

    回転機研究会資料   ( RM-22-116 )   2022.10

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  • フェライト磁石と丸線を採用した自動車駆動用アキシャルギャップモータにおける高出力密度化及び高効率化のための検討

    和泉谷 洸輔, 綱田 錬, 竹本 真紹, 今井 純, 齋藤 達哉, 上野 友之

    電気学会産業応用部門大会講演論文集   ( 3-5 )   80 - 85   2022.9

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  • アキシャルギャップモータ及びラジアルギャップモータにおける扁平率毎の熱特性の比較検討

    綱田 錬, 竹本 真紹, 今井 純, 齋藤 達哉, 上野 友之

    電気学会産業応用部門大会講演論文集   ( 3-6 )   86 - 91   2022.9

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  • 固定子に界磁巻線を備えた逆突極性を有するハイブリッド界磁モータに関する検討

    山内 佑馬, 竹本 真紹, 綱田 錬, 今井 純

    電気学会モータドライブ/家電・民生合同研究会資料   ( MD-22-062/HCA-22-014 )   1 - 6   2022.3

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  • 1軸能動制御型磁気浮上ポンプにおける高い軸支持力特性を有する反発磁石構造の検討

    寺田 浩輝, 竹本 真紹, 綱田 錬, 今井 純

    電気学会モータドライブ/家電・民生合同研究会資料   ( MD-22-054/HCA-22-006 )   1 - 6   2022.3

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  • 試作機における損失増加を考慮した場合のアキシャルギャップモータの高効率化に適したSMC材料の開発方針の検討(その1)-SMCの透磁率及び鉄損特性が効率に及ぼす影響の評価-

    綱田 錬, 竹本 真紹, 今井 純, 齋藤 達哉, 上野 友之

    電気学会回転機研究会資料   ( RM-21-124 )   25 - 30   2021.11

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  • 回転子に巻いた界磁巻線に着磁機能を付加したハイブリッド界磁メモリーモータの基礎検討

    横道 圭人, 綱田 錬, 竹本 真紹, 今井 純

    電気学会回転機研究会資料   ( RM-21-107 )   29 - 34   2021.11

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  • 試作機における損失増加を考慮した場合のアキシャルギャップモータの高効率化に適したSMC材料の開発方針の検討(その2)-提案方針に基づいて開発した新材料を用いた試作機の特性検証-

    綱田 錬, 竹本 真紹, 今井 純, 齋藤 達哉, 上野 友之

    電気学会回転機研究会資料   ( RM-21-125 )   31 - 36   2021.11

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  • Investigation of achieving low iron loss and magnetization characteristics by using double layer and extended flux barrier

    綱田錬, 竹本真紹

    電気学会研究会資料(Web)   ( MD-21-078/RM-21-042/VT-21-003 )   1 - 6   2021.6

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    J-GLOBAL

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  • Experiments: Achievement of symmetric magnetizing current by employing double layer structure

    綱田錬, 竹本真紹, 小笠原悟司, 折川幸司

    電気学会全国大会講演論文集(CD-ROM)   2021   68 - 69   2021.3

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    J-GLOBAL

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  • リラクタンストルクを改善したΔ型磁石配置及び拡張フラックスバリアを設けた自動車駆動用可変磁力メモリーモータの特性解析

    綱田 錬, 竹本 真紹, 小笠原 悟司, 折川 幸司

    電気学会モータドライブ/回転機/リニアドライブ合同研究会資料   2020 ( MD-20-132/RM-20-125/LD-20-075 )   107 - 110   2020.9

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  • Δ型磁石配置及び拡張フラックスバリアを設けた自動車駆動用可変磁力メモリーモータにおけるリラクタンストルク向上のための回転子の設計コンセプト

    綱田 錬, 竹本 真紹, 小笠原 悟司, 折川 幸司

    電気学会モータドライブ/回転機/リニアドライブ合同研究会資料   2020 ( MD-20-131/RM-20-124/LD-20-074 )   103 - 106   2020.9

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  • Reduction of the Number of Turns and Eddy Current Loss in the Winding of 2MW PMSM for Aircraft Hybrid System

    綱田錬, 竹本真紹, 小笠原悟司, 折川幸司, 軸丸武弘, 鈴木史典, 関直喜

    電気学会全国大会講演論文集(CD-ROM)   2020   46 - 47   2020.3

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    J-GLOBAL

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  • コアレス回転子形状を有するアキシャルギャップモータにおける高効率化のためのSMC材料の開発方針の検討

    綱田 錬, 竹本 真紹, 小笠原 悟司, 折川 幸司, 齋藤 達哉, 榎園 勇太, 上野 友之

    MAGDAコンファレンス 講演論文集   28th   34 - 41   2019.10

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  • C型SMCコアを用いた超扁平アキシャルギャップモータの提案

    綱田 錬, 竹本 真紹, 小笠原 悟司, 折川 幸司, 上野 友之, 齋藤 達哉

    電気学会回転機/リニアドライブ/家電・民生合同研究会資料   ( RM-19-066/LD-19-065/HCA-19-043 )   63 - 68   2019.8

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  • Δ型磁石配置及び拡張フラックスバリアを採用した自動車駆動用可変磁力メモリーモータの検討(その1) -着磁性能向上のための回転子形状の提案-

    綱田 錬, 竹本 真紹, 小笠原 悟司

    電気学会産業応用部門大会講演論文集   ( 3-71 )   407 - 412   2019.8

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  • Δ型磁石配置及び拡張フラックスバリアを採用した自動車駆動用可変磁力メモリーモータの検討(その2) -着磁性能向上のための回転子形状の提案-

    綱田 錬, 竹本 真紹, 小笠原 悟司

    電気学会産業応用部門大会講演論文集   ( 3-72 )   413 - 418   2019.8

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  • 圧粉磁心を用いた薄型・高トルクなアキシャルギャップモータの開発

    齋藤達哉, 榎園勇太, 中村悠一, 上野友之, 中村圭佑, 綱田錬, 竹本真紹

    日本磁気学会研究会資料   221st   2019

  • Investigation of a Variable Flux Memory Motor Using Delta-type PM Arrangement and Extended Flux Barrier for Traction Applications, Ver. 2-Operating Characteristics Under No-load and Load Conditions-

    綱田錬, 竹本真紹, 小笠原悟司

    電気学会産業応用部門大会(CD-ROM)   2019   2019

  • 3つの磁石材料におけるアキシャルギャップモータの試作機による特性比較

    綱田 錬, 竹本 真紹, 小笠原 悟司, 折川 幸司, 渡辺 麻子, 上野 友之, 山田 浩司

    電気学会全国大会講演論文集   4 ( 5-003 )   5 - 6   2017.3

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    J-GLOBAL

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  • アキシャルギャップモータにおける効率及び加速度性能の改善に関する検討

    綱田 錬, 竹本 真紹, 小笠原 悟司, 渡辺 麻子, 上野 友之, 山田 浩司

    電気・情報関係学会北海道支部連合大会講演論文集   2016 ( 33 )   48 - 49   2016.11

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    J-GLOBAL

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  • ネオジムボンド 磁石の適用によるアキシャルギャップモータの高速重負荷領域の高効率化に関する検討

    綱田 錬, 竹本 真紹, 小笠原 悟司, 渡辺 麻子, 上野 友之, 山田 浩司

    電気学会産業応用部門大会講演論文集   2016 ( 3-58 )   313 - 318   2016.8

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    J-GLOBAL

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  • 低鉄損・圧粉磁心を用いたアキシャルギャップモータの開発

    上野友之, 渡辺麻子, 山田浩司, 綱田錬, 竹本真紹

    粉体粉末冶金協会講演概要集   2016   2016

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Presentations

  • 電動モータを取り巻く環境と研究開発動向 Invited

    綱田錬

    令和6年度第1回電気学会秋田支所学術講演会  2024.12.13 

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  • 車両熱マネジメントモデルを用いて走行モードを考慮したモータの設計と解析~大学におけるモータ研究適用事例~

    交易場真, 綱田錬

    JMAGユーザー会2024  2024.12.4 

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  • アキシャルギャップモータ(AGM)の基礎および開発事例と技術動向 Invited

    綱田錬

    S&T出版 セミナー  2024.11.29 

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  • 様々な駆動用モータの開発事例と課題 Invited

    綱田錬

    公益財団法人 自動車技術会 モータ技術部門委員会  2024.9.9 

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  • アキシャルギャップモータの解析/実験による熱的特性の検証、及びラジアルギャップモータとの比較検討 Invited

    綱田錬

    JMAGユーザー会講演論文集  2021.12 

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Industrial property rights

  • 可変磁力モータ

    竹本 真紹, 綱田 錬

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    Applicant:国立大学法人北海道大学

    Application no:特願2019-143971  Date applied:2019.8.5

    Announcement no:特開2021-027700  Date announced:2021.2.22

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Awards

  • Electrical Machines Committee Prize Paper Award

    2025.10   IEEE Industry Applications Society  

    綱田錬

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  • 論文査読促進賞

    2025.8   電気学会産業応用部門  

    綱田錬

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  • Young Investigators Award, EVTeC2025

    2025.5   JSAE  

    綱田錬

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  • 教育貢献賞

    2025.3   岡山大学  

    綱田錬

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  • Best Oral Presentation Award of IEEE ICELIE2023

    2024.7   IEEE  

    綱田錬

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  • 教員貢献賞

    2024.3   岡山大学  

    綱田錬

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  • 電気学会産業応用部門 若手論文発表奨励賞

    2024.3   電気学会  

    綱田錬

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  • 研究准教授 (称号付与)

    2023.10   岡山大学  

    綱田錬

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  • 産業応用部門 論文査読促進賞

    2023.8   電気学会産業応用部門  

    綱田錬

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  • 電気学会産業応用部門 部門優秀論文発表賞(本部表彰)

    2023.8   電気学会  

    綱田錬

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  • マザック高度生産システム優秀論文賞

    2023.5   公益財団法人マザック財団  

    綱田錬

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  • 令和5年 電気学会全国大会 優秀論文発表賞

    2023.3   電気学会  

    綱田錬

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  • 井上研究奨励賞

    2023.2   井上科学振興財団  

    綱田錬

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  • 丹羽保次郎記念論文賞

    2022.2   東京電機大学  

    綱田錬

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  • 優秀論文発表賞(本部表彰)

    2021.11   電気学会  

    綱田錬

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  • 岡山県産業振興財団 科学技術賞

    2021.7   公益財団法人 岡山工学振興会  

    綱田錬

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  • 日本AEM学会 奨励賞(学術論文)

    2020.12   日本AEM学会  

    綱田錬

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  • 電気学会産業応用部門 部門優秀論文発表賞(本部表彰)

    2019.8   電気学会  

    綱田錬

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  • 研究科長賞

    2017.3   北海道大学 大学院情報科学研究科  

    綱田錬

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  • 優秀論文発表賞

    2017.2   電気学会  

    綱田錬

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  • 電気・情報関係学会北海道支部連合大会 若手優秀論文発表賞

    2017.1   電気学会  

    綱田錬

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  • 電気学会産業応用部門 部門優秀論文発表賞(本部表彰)

    2016.8   電気学会  

    綱田錬

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  • ウィリアムウィラー賞

    2015.3   北海道大学 工学部  

    綱田錬

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Research Projects

  • Development of an Axial Gap Motor for EV traction that achieves a power density of 8 kW/kg including case weight

    Grant number:24K17263  2024.04 - 2026.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Early-Career Scientists

    綱田 錬

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    Grant amount:\4680000 ( Direct expense: \3600000 、 Indirect expense:\1080000 )

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  • Development of an Axial Gap Motor for Traction Applications Achieving Both High Performance and Low Cost

    Grant number:22K20429  2022.08 - 2024.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Research Activity Start-up

    Tsunata Ren

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    Grant amount:\2860000 ( Direct expense: \2200000 、 Indirect expense:\660000 )

    In recent years, the production volume of permanent magnet synchronous motors, which serve as the drive source for electric vehicles, is expected to increase significantly. Therefore, there is a need not only for higher performance motors, but also for lower costs. However, in order to achieve high performance, many current motors use expensive neodymium sintered permanent magnets and rectangular copper wire. Therefore, in this research, I proposed a new rotor structure and optimized the stator tip shape for an axial gap motor, thereby achieving performance equivalent to or better than conventional motors while using low-cost ferrite permanent magnets and round copper wire. We have succeeded in developing a "traction motor that achieves both high performance and low cost.'' Finally, I developed a prototype of the proposed axial gap motor and demonstrated its effectiveness through experiments.

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Class subject in charge

  • Electrical and Electronic Engineering Experiments B (2024academic year) 3rd and 4th semester  - 火3~7

  • Communication and Network Engineering Experiments B (2024academic year) 3rd and 4th semester  - 火3~7

  • Technical English B1 (2024academic year) Third semester  - 水7~8

  • Technical English II (2024academic year) Third semester  - 水7~8

  • Advanced Study (2024academic year) Other  - その他

  • Technical Writing(Electronic Engineering) (2024academic year) Prophase  - その他

  • Technical Presentation(Electronic Engineering) (2024academic year) Late  - その他

  • Technical Writing (2024academic year) Prophase  - その他

  • Technical Presentation (2024academic year) Late  - その他

  • Electrical power and Motor Experiments (2024academic year) Summer concentration  - その他

  • Specific Research of Electronics and Information Systems Engineering (2024academic year) Year-round  - その他

  • Electrical and Communication Engineering Lab B (2024academic year) 3rd and 4th semester  - その他

  • Electrical and Communication Engineering Lab C (2024academic year) 3rd and 4th semester  - その他

  • Electrical and Electronic Engineering Experiments B (2023academic year) 3rd and 4th semester  - 火3~7

  • Communication and Network Engineering Experiments B (2023academic year) 3rd and 4th semester  - 火3~7

  • Technical English B1 (2023academic year) Third semester  - その他

  • Technical English II (2023academic year) 3rd and 4th semester  - その他

  • Advanced Study (2023academic year) Other  - その他

  • Technical Writing(Electronic Engineering) (2023academic year) Prophase  - その他

  • Technical Presentation(Electronic Engineering) (2023academic year) Late  - その他

  • Technical Writing (2023academic year) Prophase  - その他

  • Technical Presentation (2023academic year) Late  - その他

  • Electrical power and Motor Experiments (2023academic year) Summer concentration  - その他

  • Specific Research of Electronics and Information Systems Engineering (2023academic year) Year-round  - その他

  • Electrical and Communication Engineering Lab B (2023academic year) 3rd and 4th semester  - その他

  • Electrical and Communication Engineering Lab C (2023academic year) 3rd and 4th semester  - その他

  • Technical Writing (2022academic year) Prophase  - その他

  • Technical Presentation (2022academic year) Late  - その他

  • Specific Research of Electronics and Information Systems Engineering (2022academic year) Year-round  - その他

  • Electrical and Communication Engineering Lab C (2022academic year) 3rd and 4th semester  - 火3~7

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