The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Basic Rotation Characteristics and Energy Efficiencies of a Blade-Type Corona Motor

날개전극형 코로나 모터의 기초 회전특성 및 에너지 효율

  • 정재승 (경북대 대학원 전자전기컴퓨터학부) ;
  • 문재덕 (경북대 IT대학 전기공학과)
  • Received : 2010.08.26
  • Accepted : 2010.09.16
  • Published : 2010.10.01
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Abstract

A corona motor, as one of a powerful cooling means of microelectronic devices, has been employed because of its very simple structure of no coils and no brushes. In this paper, the effect of polarity of applied voltage and the number of blade corona electrodes on the fundamental properties of rotation of the motor was investigated. The I-V and rotation characteristics of the blade corona electrode were significantly different from the different polarities of applied voltages and the blade corona electrode numbers, due to the different space charge effect resulted by the different migration mobility of the positive and negative ions generated near the blade corona electrode tip of the rotor of the motor. The rotation speed of the motor was influenced significantly by the polarity of corona discharge, the number of blades, and mass of rotor. At the same corona current, an effective rotation can be obtained with the positive corona caused by the lower ion mobility. On the other hand, the higher rotation speed can be obtained with the negative corona resulted from its higher corona current. The highest rotation speed and energy efficiency can be obtained with the rotor having 4 blades.

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References

  1. O. Jefimenko, Elecrostatic Motors, Electret Scientific Co, Star City, 1973.
  2. S. Lee, D. Kim, M.D. Bryant, F.F. Ling, "A micro corona motor," Sensors and Actuators, Vol. A 118, pp. 226–232, 2005.
  3. M. Dadkhah, Y. Hojjat, M. Modabberifar, T. Higuchi, "Experimental investigation of parameters influencing electrostatic motor's performance with air bearing operation," The International Journal of Advanced Manufacturing Technology, Vol. 43, No. 3-4, pp. 211-216, 2009. https://doi.org/10.1007/s00170-008-1710-3
  4. A. Yamamotoa, T. Niino, T. Higuchi, "Modeling and identification of an electrostatic motor." Precision Engineering, Vol. 30, No. 1, pp. 104–113, 2006. https://doi.org/10.1016/j.precisioneng.2005.06.004
  5. A.D. Moore Editor, Electrostatics and Its Applications, New York: John Willey & Sons, Inc., 1973, pp. 131-147.
  6. S. Lee, D Kim, M Bryant, F. Ling, A micro corona motor, Sensors and Actuators, A 118, 2005, pp. 226-232. https://doi.org/10.1016/j.sna.2004.08.017
  7. 문재덕, 이동훈, "정전모터의 연구현황과 개발동향," Vol 40, No. 2, pp. 8-19, 1991.
  8. J.-D. Moon, D.-H. Hwang, S.-T. Geum, "An EHD Gas Pump Utilizing a Ring/Needle Electrode," IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 16, No. 2, pp. 352-358, 2009. https://doi.org/10.1109/TDEI.2009.4815163
  9. J.-D. Moon, J.-S. Jung, J.-G. Kim, S.-T. Geum, "An EHD Gas Pump Utilizing a Wet Porous Point Electrode," IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 16, No. 3, pp. 622-628, 2009. https://doi.org/10.1109/TDEI.2009.5128497
  10. 정재승, 문재덕, "금속관형 코로나 방전극을 적용한 효과적인 이온풍 발생," 전기학회논문지, Vol. 59, No. 3, pp. 599-603, 2010.
  11. 황덕현, 문재덕, "방전 침전극의 곡률반경이 이온풍 발생에 미치는 영향," 전기학회논문지, Vol. 59, No. 3, pp. 604-608, 2010.
  12. 大木正路, 高電壓工學, pp 40-42 (1980) (日本語本)
  13. R.A. Serway, 대학물리학I, 6th edition, 서울:북스힐, 2004, pp. 204-230