한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제12권1호
  • /
  • Pages.73-81
  • /
  • 2002
  • /
  • 1598-2785(pISSN)
  • /
  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지
DOI QR코드

DOI QR Code

새로운 권선법을 이용한 4극 로렌쯔형 자기 부상 모터

4-pole Lorentz Force Type Self-bearing Motor with a New Winding Configuration

  • 김승종 (한국과학기술연구원 트라이볼로지연구쎈터) ;
  • ;
  • Yohji Okada (Dept. of Mechanical Eng., Ibaraki Univ., Japan)
  • 발행 : 2002.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper introduces a four-Pole Lorentz force type self-bearing motor in which a new winding configuration is proposed to enable the sing1e winding to function both as a synchronous PM motor and as a magnetic bearing. The Lorentz force type has some good points such as the linearity of control force, freedom from flux saturation, and high efficiency, unlike conventional self-bearing motors using a reluctance force. And also, compared with the previously proposed eight-pole type, this four-pole self-bearing motor is more profitable for high rotational speed. In this paper, mathematical expressions of torque and radial force in the proposed self-bearing motor are derived to show that they can be separately controlled regardless of rotational speed and time. For verification of the theory, a prototype is made, where a ring-shape outer rotor is actively controlled in two radial directions while the other motions are passively stable supposing the radial stability. Through some experiments. it is shown that the proposed scheme can provide high capability and feasibility for a small high-speed self-bearing motor.

키워드

참고문헌

  1. R. and Barletta, N., 1996. "Principle and Application of a Bearing Slice Motor," Proc. of the 5th Int'l Symp. on Magnetic Bearings, Kanazawa, Japan, pp. 313-318.
  2. Chiba, A. et. al., 1994, "An Analysis of Bearingless AC Motors," IEEE Trans. on Energy Conversion, Vol. 9, No. 1, pp. 61-68. https://doi.org/10.1109/60.282477
  3. Okada, Y., Dejima, K. and Ohishi, T., 1995, "Analysis and Comparison of PM Synchronous Motor and Induction Motor Type Magnetic Bearings," IEEE Trans. on Industry Applications, Vol. 31, No. 5, pp. 1047-1053. https://doi.org/10.1109/28.464518
  4. Okada, Y., Miyamoto, S. and Ohishi, T., 1996. "Levitation and Torque Control of Internal Permanent Magnet Type Bearingless Motor," IEEE Trans. on Control System Tech., Vol. 4, No. 5, pp. 565-570. https://doi.org/10.1109/87.531922
  5. 김승종, Okada, Y., 2001, "소형 수직형 축류펌프를 위한 축방향 자기 부상 모터," 한국소음진동공학회논문집, 제 11권, 제 6호, pp. 223-232.
  6. 김승종, Masuzawa, T., Okada, Y., 2001, "인공 심장용 무축 원판형 자기 부상 모터," 한국소음진동공학회, 춘계학술대회논문집, pp. 559-564.
  7. Han, W. S. and Lee, C. W., 2001, "Runout Identification and Precision Control of Integrated Motor-Bearing System," Proc. of the 8th Int'l Congress on Sound and Vibration, Hong Kong, China, pp. 1849-1856.
  8. Okada, Y. et. al., 2000, "Lorentz Force Type Self-Bearing Motor," Proc. of the 7th Int'l Symp. on Magnetic Bearings, Zurich, Switzerland, pp. 353-358.
  9. Say, M. G., 1971, Introduction to the Unified Theory of Electromagnetic Machines, 1st edition, Pitman Publishing.