동력기계공학회지 (Journal of Power System Engineering)

  • 제16권3호
  • /
  • Pages.64-68
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  • 2012
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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자기베어링 구동용 전자석의 흡인력에 대한 수학적 모델링

Mathematical Modeling about Magnetic Attractive Force of Magnetic Bearing

  • 최교호 (강원도립대학 해양경찰학과) ;
  • 양주호 (부경대학교 기계시스템공학과) ;
  • 정광교 (선박안전기술공단)
  • Choi, G.H. (Department of Marine Police and Technology, GangWon Provincial College) ;
  • Yang, J.H. (Department of Mechanical System Engineering, Pukyong National University) ;
  • Choung, K.G. (Korea Ship Safety Technology Authority)
  • 투고 : 2012.01.18
  • 심사 : 2012.03.12
  • 발행 : 2012.06.30
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초록

Because the magnetic bearing supports levitating body without contact, wear, noise and vibration are very small comparing with mechanical bearings, it is very useful to high revolution machinery. In general, the magnetic attractive force function that is proportional to square of control current(x), and inversely proportional to square of an air gap(i) has been widely used. This paper proposed the new magnetic attractive force function that is proportional to cube of the control current, and inversely proportional to square of the air gap. The function was optimized to minimize the cost function that is the percentage of deviation about the change of a proportional constant(k), using the experimental data, ie, control currents and air gaps.

키워드

참고문헌

  1. C. H. Kim et al., 1997, "A Study on the Gap Estimation Circuit Design of the Magnetic Levitation System", Journal of The Korean Society for Power System Engineering, Vol. 1, No. 1, pp. 144-153.
  2. C. H. Kim and J. H. Yang, 1998, "A Study on the Sensorless Realization of Magnetic Levitation System by Two-Degree-of-freedom Control Method", Journal of the Korean Society of Marine Engineering, Vol. 22, No. 6, pp. 888-893.
  3. J. H. Yang et al., 2005, "Automatic Control", DooYangSa, Seoul, pp. 394-397.
  4. C. H. Kim, B. G. Jung and J. H. Yang, 2010, "A Study on the Robust Control of Horizontal-Shaft Magnetic Bearing System Considering Perturbation", Journal of the Korean Society of Marine Engineering, Vol. 34, No. 1, pp. 92-101. https://doi.org/10.5916/jkosme.2010.34.1.092
  5. D. J. Lee, J. H. Hong and J. K. Park, 2001, "Basic and Application for the Magnetic Bearing", SigmaPress, Seoul, pp. 25-35.
  6. Guang-Ren Duan and David Howe, 2003, "Robust Magnetic Bearing Control via Eigenstructure Assignment Dynamical Compensat -ion", IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, vol. 11, no. 2, pp. 204- 205. https://doi.org/10.1109/TCST.2003.809253
  7. S. M. Jang et al., 2010, "Dynamic Characteristic Analysis of Active Thrust Magnetic Bearings", Summer Conference of Korea Institute of Electrical Engineers, pp. 730-731.
  8. G. G. Choung, 2012, "A Study on the Construction of the Magnetic Bearing Control System by ATmega 128", Doctoral Thesis, PuKyong National University, pp. 26-28, 93-96.

피인용 문헌

  1. Control of Magnetic Bearing using ATmega128(Focused on experiments) vol.17, pp.4, 2013, https://doi.org/10.9726/kspse.2013.17.4.139