Achievement


  • Publication

    Use T2R2(Tokyo Tech Research Repository) to search the research achievements of our laboratory members.

    t2r2

     

    Prof. Akira Chiba Achievement
    Assoc. Prof. Kyouhei Kiyota Achievement
    Assist. Prof. Yuusuke Fujii Achievement
    V. Assoc. Prof. Hiroya Sugimoto Achievement

  • Conference Presentations

    2023

    • Our M2 student Akihiro Shiratsuki made a presentation in the 2023 International Electric Machines and Drives Conference (IEMDC 2023) .

      • 『A Novel Torque and Thrust Force Controller for an Axial Gap Type Single-Drive Bearingless Reluctance Motor Using Indirect Vector Control』

      I participated in IEMDC2023 held in San Francisco, USA for 4 days from May 15th to 18th. It was my first international conference and I was nervous, but I was able to listen to various presentations and receive a good stimulus. The questions were asked in English, and it was a meaningful time. I would like to make use of what I learned in my future research based on those meaningful discussions.

      2023, 5, 15 - 18

    • Our Assistant Professor Yusuke Fujii; M2 students Daichi Makihara and Shintaro Narioka; M1 students Keisuke Sato, Akihiro Shiratsuki, Shintaro Yano, Heng Yuan, H.K.Vishnu Chaithanya and Naoki Saikawa; B4 students Ryo Hasegawa and Iori Kokubo made a presentation in the Annual Meeting of the Institute of Electrical Engineers of Japan (Link Only Japanese) .

      • 『Inverter-less Drive of Thrust Magnetic Bearing for a 5-DOF Controlled Bearingless Motor Using Zero-Sequence Current』(Fujii)

      • 『Torque Improvement of a Concentrated Winding Synchronous Reluctance Motor by Sinusoidal Voltage Drive』(Makihara)

      • 『Reduction of Tilting Instability of Axial Gap Type Single Drive Bearingless Reluctance Motor』(Narioka)

      • 『Torque Density Enhancement of Axial Gap Type Bearingless Reluctance Motor by Changing the Stator Pole Number』(Sato)

      • 『Adaptive Tuning of Harmonic Injected Currents to Reduce Thrust Force Ripple in Axial Gap Type Single-Drive Bearingless Reluctance Motors』(Shiratsuki)

      • 『A Study of Current Waveform of Vector Control SRM Considering Torque Ripple and Radial Force Ripple』(Yano)

      • 『Torque Ripple and Radial Force Ripple Suppression in Vector Controlled Switched Reluctance Motors』(Yuan)

      • 『Improvement of Force and Motor Torque in an Axially Passive and Active Bearingless Motor with Asymmetric Structure』(Vishnu)

      • 『Magnetostriction measurement of Closed Loop Cores using Strain Gages』(Saikawa)

      • 『Improvement of Low-speed Region Efficiency of a SynRM with Concentrated Windings by Asymmetric Rotor Shape』(Hasegawa)

      • 『Initial investigation of Efficiency Enhancement of a Flux Switching Motor by Synchronous Reluctance Motor Drive』(Kokubo)

      I participated in the Annual Meeting of the Institute of Electrical Engineers of Japan held at Nagoya University Higashiyama Campus for 3 days from March 15th to 17th. There were many presentations, which inspired me significantly, in the field of motor. For many of us it was the first time to present at an academic conference, and I felt both stress and difficulties of on-site presentation. On the contrary, I was able to have a meaningful Q&A and exchange options as well. Based on the options pointed out this time, I would like to encourage further research in the future.

      2023, 3, 15 - 17
    2022

    • Our M2 students Taiga Miyajima; Narioka Shintaro made a presentation in the JMAG Users Conference 2022 .

      • 『Copper and Iron Losses Analysis of Induction Motor under Different Simulation Settings at No-Load Test Condition』

      • 『Consider of a method for defining dimensional parameters for repulsive passive magnetic bearings』

      2022, 12, 07 - 08

    • Our M2 students Yoshiki Ozawa; Yuga Tanaka; Daichi Makihara and Kangmou He made a presentation in the ICEMS2022.

      • 『Novel Axial-Gap Bearingless PM Motor with Full-Passive Magnetic Suspension by Diamagnetic Disk』

      • 『Reduction of Torque Ripple and Radial Force Harmonics in Consequent-Pole Permanent Magnet Motor for Electric Power Steering Applications』

      • 『Efficiency Improvement of a Concentrated Winding Synchronous Reluctance Motor Using Sixth Harmonics Component of d and q-axis Currents』

      • 『Proposal of a Novel Inverter Structure for Dual-mode Reluctance Motor with Reduced Switching Components』

      2022, 11, 29 - 12, 02

    • Our D2 student Akira Kumashiro; M2 student Narioka Shintaro; M1 students Ryunosuke Nikaido and Akihiro Shiratsuki made a presentation in the Magnetics, Motor Drive and Linear Drive Technical Meeting (Link Only Japanese) .

      • 『Evaluation of Rotational Angle Position Detection in Magnetic Geared Motor with Magnetically Levitated High-Speed Rotor』

      • 『Consideration of an Arrangement of Repulsive Passive Magnetic Bearings in 1-DOF Type Axial Gap Bearingless Motors』

      • 『A Study on Calculation of Constants of Induction Motor by FEM Analysis』

      • 『Increasing of Rotational Speed of an Axial Gap Type Single-Drive Bearingless Reluctance Motor by Adjusting the Rotor Suspension Position』

      2022, 11, 21 - 22

    • Our D2 student Akira Kumashiro; M2 student Daichi Makihara; M1 student Ryo Kokubu made a presentation in the Rotational Machinery Technical Meeting .

      • 『Evaluation of Characteristics in Magnetic Geared Motor with Magnetically Levitated High-Speed Rotor』

      • 『Torque and Efficiency Improvement of a Concentrated Winding Synchronous Reluctance Motor by the Injection of Sixth Harmonic Component Currents』

      • 『Analysis of Zero-Phase and Interference Inductances of Concentrated Windings SynRM with Open Connection』

      2022, 10, 25 - 26

    • Our D1 student Cai Yifei; M2 students Yuga Tanaka, Yoshiki Oozawa, Daichi Makihara and He Kangmou made a presentation in the 2022 IEE-Japan Industry Applications Society Conference .

      We participated in the 2022 IEEJ Industrial Applications Division Conference held at Sophia University from August 30 to September 1. Tanaka, Makihara, and He participated in the on-site Young Poster Competition (YPC), and Cai and Ozawa participated in the hybrid general session online. About 120 presentations were made in the YPC, and Tanaka and Makihara received the Best Paper Presentation Award. About 250 presentations were made in the general sessions.

      • Tanaka:
        This was the first time for me to give a poster presentation. I was able to engage in many discussions with the audience during my presentation, and it was a very meaningful time for me. I was also honored to receive the YPC Best Paper Presentation Award, and I felt that I would like to continue to do my best in my research.

      • Makihara:
        I gave a presentation on geometry optimization of dual-mode reluctance motors. It was the first time for me to give a presentation at the site, and we had many questions and fruitful discussions.

      • He:
        I presented the inverter modification of a dual-mode reluctance motor and received many comments from the university and the company, which was a meaningful experience.

      • Cai:
        I made a presentation on motor vibration noise caused by magnetostriction. We had a very fruitful discussion with limited time for questions and answers.

      • Oozawa:
        I presented on the stiffness measurement of magnetic bearings. Although we participated online, we received very helpful feedback.

      2020,09,02

    • Our M2 students Yoshiki Oozawa, Yuga Tanaka and Shintaro Narioka made a presentation in the 34th Symposium on Electromagnetic Force Related Dynamics .

      • 『反磁性体とリングハルバッハ配列永久磁石を用いた磁気軸受の高速回転時における挙動の検討』

      • 『IPMモータにおける12次高調波電流重畳による騒音低減』

      • 『受動磁気軸受の形状や体積の変化に伴う体積当たりの剛性の変化』

      I attended the 34th Symposium on Electromagnetic Force Related Dynamics. The total number of participants was about 160, and there were about 110 presentations. Each of the presentations was of high quality and there was a lively exchange of opinions, with some sessions exceeding the time limit. Besides student presentations, we often saw presentations by professors, and were struck by the high level of quality. This was my first opportunity to present in person, and although I felt a sense of tension different from online presentations and the difficulty of presenting while using a laser pointer, thanks to the advance practice in the lab, the presentation, including the Q&A session, was very productive. I would like to continue to actively participate in academic conferences to exchange opinions on my research and absorb various knowledge. Since the conference was held in Sendai, I was able to go sightseeing around Sendai in my free time. I enjoyed the famous refreshment Zunda and beef tongue. What I particularly enjoyed was the pickled fish rice. If you have a chance to visit Sendai, please try it.

      2020,09,02
    2020

    • Our D3 student Chen Lingyu; D1 student Candra Adi Wiguna; M2 student Akira Kumashiro and M1 students Yifei Cai, Leping Wang and Hector San Juan made a presentation in the Motor Drive Rotational Machinery and Linear Drive Technical Meeting (Link Only Japanese)

      • "Since it was an online conference, I did not feel as nervous as I do in usual meetings so I felt like I did well. I tried to answer some questions in Japanese and I am very glad that public could understand the content of my presentation."

        D3　Chen Lingyu.　2020,09,02

      • "I was able to enjoy the IEEJ online meeting. The meeting's atmosphere was different from always and I had a great time with all the participants' fascinating research."

        D1　Takahiro Noguchi.　2020,09,02

      • "The conference is very interesting! There were many fresh ideas and concepts for electric machine development. Each presenter summarized the contents only in several slides but easy to understand. However, it’s still hard to participate the conference using English. Not many questions because of language barrier."

        D1　Candra Adi Wiguna.　2020,09,01

      • "I have never had the opportunity to present my research, so this was a great opportunity to discuss about it. It was also very stimulating to hear presentations in similar fields."

        M2　Akira Kumashiro.　2020,09,01

      • "I was able to participate in the workshop this time because I didn't have to travel to the venue and I could save money. Personally, I would like to participate in an offline workshop next time because I can discuss things in more depth in person and there are things that cannot be conveyed through a screen."

        M1　Yifei Cai.　2020,09,01

      • "This was my first time to participate in a technical meeting. I was a little nervous for my first meeting. Although everyone presented in Japanese, it was difficult for me to present in Japanese, so I decided to present in English. However, I found it difficult to answer questions even in English, and I felt I needed to attend more conferences to get used to presenting at them. I have been interested in what kind of research is being done in other countries for a long time, and I enjoyed this meeting because I could learn about the latest research."

        M1　Leping Wang.　2020,09,01

      • "This was an amazing opportunity to listen to other research and their results. It was the first time I participated in a technical meeting and I was quite satisfied with the experience. Definitely I want to do it again."

        M1　Hector San Juan.　2020,09,02

    • Our M2 student, Haruki Sobue made a presentation in the Motor Drive Rotational Machinery and Automotive Research Meeting (Link Only Japanese)

      • "This was the first time to have the technical meeting online. Since the presentation was different from the usual, I was bit lost in a few things, but I received many questions, especially from the companies. I felt it was important to look at it from a slightly different perspective than usual."

        M2　Haruki Sobue.　2020,05,15

  • Awards

    2023

    • 2022 Excellent Master's Thesis Award (Link Only Japanese)

      I am glad to receive this wonderful award, the Excellent Master’s Thesis Award. I would like to express my sincere gratitude to Professor Chiba and Professor Fujii for their guidance during my master course. I didn’t know what and how to do in research when I entered the graduate school. However, I feel that I have grown significantly after completing my master course. I will make the most of all my experience by master course and do my best to start my new life as a member of society from this spring.

      M2 Yuga Tanaka.　2023,03

    • 2022 Excellent Bachelor's Thesis Award (Link Only Japanese)

      I am so surprised when I received the news that I had been selected as a representative of Electrical and Electronic Engineering and honored to receive the Excellent Bachelor’s Thesis Award. I would like to express my gratitude to Professor Chiba, Professor Kiyota, and Professor Fujii for their guidance on my research. I didn’t know what and how to do in research when I was assigned to the laboratory, but I have grown considerably in the past year. I will put all my effort to improve myself and pursue further in research during my master course.

      B4 Hironori Minegishi.　2023,03
    2022

    • Award for Excellent Paper Presentation IEEJ 2021

      This time, I was awarded for an excellent presentation paper in the Magnetics/Motor Drive/Linear Drive Joint Research Group; a research group that deals with a wide range of fields related to electromagnetic forces. This award has given me confidence in my ability to explain things easily. I would like to keep working harder on my research.
      M1 Yoshiki Oozawa.　2022,03

    • Award for Excellent Paper Presentation IEEJ 2021

      I was awarded by the Institute of Electrical Engineers of Japan (IEEJ) for an excellent presentation of my paper entitled "Bearingless Motor with Asymmetric Axial Electrodynamic Stabilization". I feel grateful for this award, because this research topic is very important for me. In this conference I presented a novel idea for our ongoing magnetic levitation project and it was well received by other researchers.
      D4 Guilherme Cavalcante Rubio.　2022,03
    2019 2018 2017 2016 2015

    • IEEE IAS Young Engineer Competition Award

      M1 Shinji Nakano. 2015
    2014

    • IEEE IAS Young Engineer Competition Award

      M1 Masato Miyoshi. 2014
    2013

    • IEEE IAS Young Engineer Competition Award

      D1 Kyouhei Kiyota. 2013

    • IEEE IAS Young Engineer Competition Award

      M2 Masaki Takiguchi. 2013

    • IEEE IAS Young Engineer Competition Award

      M1 Katsuhiko Urase. 2013