Development of the Starting Algorithm of a Brushless DC Motor Using the Inductance Variation

인덕턴스의 변화를 이용한 브러시리스 DC 모터의 초기 구동 알고리즘 개발 및 구현

  • Park, Jae-Hyun (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Chang, Jung-Hwan (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Jang, Gun-Hee (Dept. of Precision Mechanical Engineering, Hanyang University)
  • 박재현 (한양대학교 정밀기계공학과) ;
  • 장정환 (한양대학교 정밀기계공학과) ;
  • 장건희 (한양대학교 정밀기계공학과)
  • Published : 2000.08.01

Abstract

This paper presents a method to detect a rotor position and to drive a BLDC motor from standstill to medium speed without any position sensor comparing the current responses due to the inductance variation in the rotor position. A rotor position at a standstill is identified by the current responses of six pulses injected to each phase of a motor. Once the motor stars up pulse train that is composed of long and short pulses is injected to the phase corresponding to produce the maximum torque and the next phase continuously. it provides not only the torque but also the information of the next commutation time effectively when the response of long and short pulses crosses each other after the same time delay. This method which is verified experimentally using a DSP can drive a BLDC motor to the medium speed smoothly without any rattling and time delay compared with the conventional sensorless algorithm.

Keywords

References

  1. K. Iizuka, H. Uzuhashi, M. Kano, T. Endo, and K. Mohri, 'Microcomputer Control for Sensorless Brushless Motor,' IEEE Transactions on Industry Applications, Vol. IA-21, No. 4, pp. 595-601, May/Jun 1985 https://doi.org/10.1109/TIA.1985.349715
  2. S. Ogasawara and H. Akagi, 'An Approach to Position Sensorless Drive for Brushless dc Motors,' IEEE Transactions on Industry Applications, Vol. 27, No. 5, pp. 928-933, Sep 1991 https://doi.org/10.1109/28.90349
  3. Alain M, Cassat. Pully, Switzerland, 'Position Detection for a Brushless DC Motor,' US patent 5001405, March 1991
  4. John C. Dunfield, Gunter K. Heine, 'Position Detection for a Brushless DC Motor without Hall Effect Device Using a Mutual Inductance Detection Method,' US patent 5254914, Oct. 1993
  5. Alain M. Cassat, Laurent Cardoletti, 'Closed-loop control of a brushless DC motor from standstill to medium speed,' US patent 5117165, May 1992
  6. P. Pillay and R. Krishnan, 'Modeling, Simulation and Analysis of a Permanent Magnet Burshless DC Motor Drive,' IEEE CH2499-2/87/000-0007, pp. 7-14, 1987
  7. T. J. E. Miller, Brushless Permanent-Magnet and Reluctance Motor Drives, Oxford University Press, 1989
  8. P.C. krause and O. Wasynczuk, Electromechanical Motion Devices, McGraw-Hill, Inc., 1989
  9. P. I. Lin and M. Rashid, 'A PC-Based Measurement and Control System for DC Motors,' IEEE CH2935-5/90/0000-1829, pp. 1829-1834, 1990 https://doi.org/10.1109/IAS.1990.152433
  10. L. Cardoletti, A. Cassat, and M. Jufer, 'Sensorless Position and Speed Control of a Brushless DC Motor from Start-up to Nominal Speed,' EPE Journal Vol. 2, No. 1, pp. 25-34, March 1992
  11. J. R. Hendershot Jr. and T. J. E. Miller, Design of Brushless Permanent-Magnet Motors, Magna Physics Publishing, 1994
  12. N. Ertugrul and P. Acarnley, 'A New Algorithm for Sensorless Operation of Permanent Magnet Motors,' IEEE Transactions on Industry Applications, Vol. 30, No. 1, pp. 126-133, Jan/Feb 1994 https://doi.org/10.1109/28.273630
  13. Giusppe Maiocchi, Villa Guardia, 'Start-Up Procedure for a Brush-less, Sensorless Motor,' US patent 5343127, Aug. 1994
  14. J. Dunfield and G. Heine, 'Starting Algorithm for Brushless DC Spindle Motors,' Proc. 24th Annu. Symp. Incermental Motion Control Systems and Devices, pp. 81-86, Jun. 1995