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A study of superconducting levitated energy storage system without mechanical contacts

Research Project

Project/Area Number 13450094
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Dynamics/Control
Research InstitutionKyushu Institute of Technology

Principal Investigator

KOMORI Mochimitsu  Kyushu Institute of Technology, Faculty of Computer Science & System Engiveering, Associate Professor, 情報工学部, 助教授 (30195870)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 2002: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2001: ¥4,600,000 (Direct Cost: ¥4,600,000)
KeywordsSuperconductivity / Superconducting levitation / Energy storage system
Research Abstract

Recently, saving energy effectively has become very important. Thus, energy-saving technology for surplus power is very important. A flywheel energy storage system is one of the valuable energy-saving technologies. The system is very simple and characterized by high energy saving compared with other energy storage systems. Also, high temperature superconductors with strong pinning force are useful for this application.
In this research, we propose a miniature flywheel energy storage system. HMBs with H-infinity control method are applied to the flywheel energy storage system. The dynamics of the energy storage system is discussed.
We have developed a prototype miniature flywheel energy storage system. The system consists of a rotor with a flywheel disk and a pair of HMBs. The rotor measures 270 mm in length and 24 mm in diameter with a flywheel disk (100 mm in diameter). The rotor mass with the flywheel is 1.2 kg, which is supported by the repulsive force between two permanent magnets (PMs). In our system, the two SMBs are more dominant than the two AMBs. This means that the AMBs assist the SMBs. In order to suppress the rotor vibration near the resonance rotation speed, H-infinity control is applied to the two-axis AMBs. Except near the resonance rotation speed, the SMBs mainly suppress the rotor vibration. The superconductors of the SMBs were field-cooled. Moreover, a nonlinear control method without bias corrents is applied to the AMBs. That is, in the rotor control, the two electromagnets facing each other along each axis aren't excited by the driving currents at the same time.
Furthermore, a flywheel system without control is studied. The system is almost equal to the system mentioned above. Also, improvement techniques for the bearing stiffness and damping of the superconducting bearings are studied. From this study, it is found that the flywheel system without control is useful for energy storage.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] M.Komori, C.Shiraishi: "Superconducting bearings assisted by self-sensing AMBs in liquid nitrogen"Proc.of the 8th International Symposium on Magnetic Bearings (ISMB-8). Vol.8. 315-320 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori, S.Nomura: "Superconducting levitated stepping motor with new dribing method"Proc.of the 6th International Conference on Motion and Vibration Control (MOVIC). Vol.6. 812-817 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori, S.Nomura: "Improvement of a superconducting stepping motor"The International Conference on Erectrical Engineering (ICEE). Vol.3. 1624-1628 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori, C.Shiraishi: "A levitated motor with superconducting magnetic bearings assisted by self-sensing AMBs"Abstracts of Applied Superconductivity Conference (ASC2002). 114-114 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori, N.Akinaga: "A prototype of flywheel energy storage system with H∞ controller"JSAEM Studies in Applied Electromagnetics and Mechanics. 147-153 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 白石千秋, 小森望充: "セルフセンシング磁気軸受併用型超電導磁気軸受"「電磁力関連のダイナミックス」シンポジウム. Vol.14. 219-222 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori., and C.Shiraishi.: "Superconducting bearings assisted by self-sensing AMBs in liquid nitrogen"Proc. Of the 8th International Symposium on Magnetic Bearings (ISMB-8) (Mito, Japan). 8. 315-320 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori., and S.Nomura.: "Superconducting levitated stepping motor with new driving method"Proc. Of the 6th International Conference on Motion and Vibration Control (MOVIC). 6. 812-817 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori., and S.Nomura.: "Improvement of a superconducting stepping motor"The International Conference on Erectrical Engineering (ICEE) (Jeju, Korea). 1624-1628 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori., and C.Shiraishi.: "A levitated motor with superconducting magnetic bearings assisted by self-sensing AMBs"Applied Superconductivity Conference (ASC2002). 114 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori., and N.Akinaga.: "A prototype of flywheel energy storage system with H∞ controller"JSAEM Studies in Applied Electromagnetics and Mechanics. 147-153 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] C.Shiraishi., and M.Komori.: "Self-sensing magnetic bearings with superconducting magnetic bearings (in Japanese)"Symposium on Electromagnetic and Dynamics (Okayama, Japan). 14. 219-222

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] M.Komori, C.Shiraishi: "Superconducting bearings assisted by self-sensing AMBs in liquid nitrogen"Proc. of the 8th International Symposium on Magnetic Bearings (ISMB-8). Vol.8. 315-320 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Komori, S.Nomura: "Superconducting levitated stepping motor with new driving method"Proc. of the 6th International Conference on Motion and Vibration Control (MOVIC). Vol.6. 812-817 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Komori, S.Nomura: "Improvement of a superconducting stepping motor"The International Conference on Erectrical Engineering (ICEE). Vol.3. 1624-1628 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Komori, C.Shiraishi: "A livitated motor with superconducting magnetic bearings assisted by self-sensing AMBs"Abstracts of Applied Superconductivity Conference (ASC2002). 114-114 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Komori, N.Akinaga: "A Prototype of flywheel energy storage system with H ∞ Controller"JSAEM Studies in Applied Electromagnetics and Mechanics. 147-153 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 白石千秋, 小森聖充: "セルフセンシング磁気軸受併用型超電導磁気軸受"「電磁力関連のダイナミックス」シンポジウム. Vol.14. 219-222 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Komori, N.Akinaga: "A prototype of flywheel energy storage system with H infinity controller"2^<nd> Japanese-Greek Joint Workshop on Superconductivity and Magnetic Materials(Oita, Japan, May, 2001). 74-75 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Komori, S.Nomura: "Development of a magnetically levitated stepping motor using high Tc bulk sunerconductor"Applied Electromagnetics and Mechanics(JSAEM Studies in Applied Electromagnetics and Mechanics). Vol.9. 293-294 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Komori, T.Tachihara: "A prototype of magnetically driven linear microactuator, Applied Electromagnetics and Mechanics"Applied Electromagnetics and Mechanics(JSAEM Studies in Applied Electromagnetics and Mechanics). Vol.9. 589-590 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Komori, N.Akinaga: "A Prototype of Flywheel Energy Storage System Suppressed by Hybrid Magnetic Bearings with H infinity Controller"IEEE Transactions on Superconductivity. Vol.11・No.1. 1733-1736 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Komori, T.Hamasaki: "Improvement and Evaluation of Bearing Stiffness in High Tc Superconducting Maignetic Bearing"IEEE Transactions on Superconductivity. Vol.11・No.1. 1677-1680 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] M.Komori, S.Nomura: "Improvement of a Magnetically-levitated Stepping Motor Using High Tc Bulk Superconductor"IEEE Transactions on Superconductivity. Vol.11・No.1. 1972-1975 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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