Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

A New Approach for Pulsating Torque Minimization of BLDC Motor

  • Lee, Young-Jin (School of Mechanical Engineering, Pusan National University) ;
  • Lee, Man-Hyung (School of Mechanical Engineering, Pusan National University) ;
  • Park, Sung-Jun (Department of Electrical Engineering, Dong-Myong College) ;
  • Park, Han-Woong (Department of Electrical Engineering, Korea Naval Academy)
  • Published : 2001.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Torque ripple control of brushless DC motor has long been the main issue of the servo drive systems in which the speed fluctuation, vibration and acoustic noise need to be minimized. The vast majority of the methods for suppressing the torque ripple require the Fourier series analysis and either the iterative or least mean square minimization. In this paper, a novel approach based on the d-q-0 reference frame that achieves ripple-free torque control with maximum efficiency is presented. The proposed method optimizes the reference phase current waveforms including even the case of 3-phase unbalanced condition, and the motor winding currents are controlled to track the optimized current waveforms by the delta modulation technique. As a results, the proposed approach provides a simple and yet effectine means for obtaining the optimal motor excitation currents. The validity and applicability of the proposed control scheme are verified through simulations and experimental investigations.

Keywords

References

  1. Bolton, H. R., and Ashen, R. A., 1984, 'Influence of Motor Design and Feed-Current Waveform on Torque Ripple in Brushless DC Drive,' Proc. of IEE, Vol. 131, Part B, No. 3, pp. 82-90
  2. Hanselman, D. C., 1994, 'Minimum Torque Ripple, Maximum Efficiency Excitation of Brush-less Permanent Magnet Motors,' IEEE Trans. Ind. Applicat., Vol. 41, No. 3, pp. 292-300 https://doi.org/10.1109/41.293899
  3. Hanselman, D., Hung, J. Y., and Keshura, M., 1992, 'Torque Ripple Analysis in Brushless Permanent Magnet Motor Drive,' Proc. ICEM 92, Manchester, UK, pp. 823-827
  4. Hung, J. Y., and Ding, Z., 1992, 'Minimization of Torque Ripple in Permanent Magnet Motors,' Proc, 18th IEEE Industrial Electronics Conf., San Diego, CA, pp. 459-463 https://doi.org/10.1109/IECON.1992.254563
  5. Jahns, T. M., 1984, 'Torque Production in Permanent Magnet Synchronous Motor Drives with Rectangular Current Excitation,' IEEE Trans, Indust. Applicat., Vol. 20, No. 4, pp. 803-813
  6. Le-Huy, H., Perret, R., and Feuillet, R., 1986, 'Minimization of Torque Ripple in Brushless DC Motor Drive,' IEEE Trans. Indust. Applicat., Vol. 22, No. 4, pp. 748-755