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2004 Fiscal Year Final Research Report Summary

Self-Sensing Control of Highly Efficient Self-Bearing Motor for Artificial Heart

Research Project

Project/Area Number 15560214
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Intelligent mechanics/Mechanical systems
Research InstitutionIbaraki University

Principal Investigator

MATSUDA Ken-ichi  IBARAKI Univ., Fac.of Eng., Research Associate, 工学部, 助手 (30302326)

Co-Investigator(Kenkyū-buntansha) OKADA Yohji  IBARAKI Univ., Fac.of Eng., Professor, 工学部, 教授 (90007774)
Project Period (FY) 2003 – 2004
KeywordsArtificial Heart / Self-Bearing Motor / Magnetic Bearing / Self-Sensing / Differential Transformer / Pulse Width Modulation
Research Abstract

Application of self-bearing motor as an actuator for an artificial heart was considered. When it is applied to an artificial heart actuator, miniaturization of the system, high efficiency, low power consumption and low heat generation is required. Moreover, the sinusoidal flux distribution between the rotor and the stator is also preferable to suppress dogging torque and realize stable levitation control Self-bearing motor is an active control system, which requires a certain type of sensor. Therefore, self-sensing is very important technique to realize miniaturization of the system.
This project proposed self-sensing control technique based on the principle of differential transformer to the interior permanent magnet (IPM) type self-bearing motor. Main flux (d-axis) directional permeance is different from its orthogonal (q-axis) directional one because of the salient pole property in the IPM type motor. When the IPM type rotor rotates, the mutual inductance between the driving coil and … More the control coil varies with not only radial displacement but also its rotation angle. It means that the radial direction displacement information is not detected simply from the mutual inductance independently.
First, Magnetic field analysis using finite element method was done to analyze the allocation of the interior permanent magnets of the rotor. Prototype IPM self-bearing motor was designed and fabricated from the analyzed results.
Secondary, new detection method using full-wave rectification was introduced to obtain the more stable differential output and new compensation was also proposed to linearize the nonlinear characteristics of the self-sensing signal.
Finally, to confirm the proposed compensation method, an internal PM type active magnetic bearing was made and tested. The result showed no interference and linear characteristics in the static experiment and accomplished stable rotation control up to 6,000rpm.
From these results, we confirmed that the proposed method has high possibility and feasibility for self-sensing control of the IPM type self-bearing motor. Now we plan to improve linearized compensation and apply to the IPM type self-bearing motor for development of the available actuator as an artificial heart. Less

  • Research Products

    (12 results)

All 2005 2004 Other

All Journal Article (12 results)

  • [Journal Article] 4極ハルバッハ磁石ローレンツ浮上モータの開発2005

    • Author(s)
      岡田 養二
    • Journal Title

      日本AEM学会第14回MAGDAコンファレンス講演論文集

      Pages: 6-11

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of 4 Pole Halbach Magnet Type Lorentz Self-Bearing Motor2005

    • Author(s)
      Yohji OKADA, Naoto YAMASHIRO, Kouji SAGAWA, Ken-ichi MATSUDA
    • Journal Title

      Proceedings of the 14th MAGDA Conference (in Japanese)

      Pages: 6-11

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] セルフベアリングモータのセルフセンシング化の研究2004

    • Author(s)
      松田 健一
    • Journal Title

      日本機械学会論文集(C編) 70-692

      Pages: 1002-1007

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ハルバッハ磁石を用いたローレンツ型磁気浮上モータの研究2004

    • Author(s)
      神部 拓郎
    • Journal Title

      第16回「電磁力関連のダイナミクス」シンポジウム講演論文集 No.04-251

      Pages: 255-258

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ワイドギャップ磁気軸受の開発と磁気浮上ポンプへの応用2004

    • Author(s)
      大塚 靖孝
    • Journal Title

      茨城講演会講演論文集 No.040-3

      Pages: 231-232

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] コンシークエント型アキシャルセルフベアリングモータの開発と応用2004

    • Author(s)
      山城 直人
    • Journal Title

      日本機会学会Dynamics and Design Conference CD-ROM論文集 No.526

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] セルフセンシング磁気軸受の実用化研究2004

    • Author(s)
      水戸 一臣
    • Journal Title

      第47回自動制御連合講演会CD-ROM論文集 No.320

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Self sensing Control Technique of Self-Bearing Motor2004

    • Author(s)
      Ken-ichi MATSUDA, Toshiyuki KUROSU, Yohji OKADA
    • Journal Title

      JSME Journal, Series C (in Japanese) Vol.70, No.692

      Pages: 1002-1007

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of Lorentz Type Self-Bearing Motor using Halbach Magnet2004

    • Author(s)
      Takurou Jinbu, Yohji Okada, Ken-ichi Matsuda
    • Journal Title

      Proceedings of the 8th Symposium on Electromagnetics and Dynamics (in Japanese) No.04-251

      Pages: 255-258

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of Wide-Gap Magnetic Bearing and Application to Maglev Pump2004

    • Author(s)
      Yasutaka OTUKA, Yohji OKADA, Ken-ichi MATSUDA, Kouichi KAKIHARA
    • Journal Title

      Proceedings of Ibaraki Conference (in Japanese) No.040-3 (CD-ROM)

      Pages: 231-232

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Consequent Type Axial Self Bearing Motor and Application2004

    • Author(s)
      Naoto YAMASHIRO, Yohji OKADA, Ken-ichi MATSUDA
    • Journal Title

      Proceedings of Dynamics and Design Conference 2004 (in Japanese) No.04-5

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Toward the Practical Use of Self-Sensing Magnetic Bearing

    • Author(s)
      Kazuomi MITO, Yohji OKADA, Ken-ichi MATSUDA
    • Journal Title

      Proceedings of the Japan Joint Automatic Control Conference (in Japanese) No.320 (CD-ROM)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2006-07-11  

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