Browse > Article

A New Approach to Sensorless Control Method for Brushless DC Motors  

Kim, Tae-Sung (School of Electrical Engineering, Hanyang University)
Park, Byoung-Gun (School of Electrical Engineering, Hanyang University)
Lee, Dong-Myung (School of Electrtonics and Electrical Engineering, Hongik University)
Ryu, Ji-Su (Company of Hanyoung Electrical Industry)
Hyun, Dong-Seok (School of Electrical Engineering, Hanyang University)
Publication Information
International Journal of Control, Automation, and Systems / v.6, no.4, 2008 , pp. 477-487 More about this Journal
Abstract
This paper proposes a new position sensorless drive for brushless DC (BLDC) motors. Typical sensorless control methods such as the scheme with the back-EMF detection method show high performance only at a high speed range because the magnitude of the back-EMF is dependent upon the rotor speed. This paper presents a new solution that estimates the rotor position by using an unknown input observer over a full speed range. In the proposed method, a trapezoidal back-EMF is modelled as an unknown input and the proposed unknown input observer estimating a line-to-line back-EMF in real time makes it possible to detect the rotor position. In particular, this observer has high performance at a low speed range in that the information of a rotor position is calculated independently of the rotor speed without an additional circuit or complicated operation process. Simulations and experiments have been carried out for the verification of the proposed control scheme.
Keywords
BLDC motor; full speed range; sensorless control; unknown input observer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 4  (Related Records In Web of Science)
Times Cited By SCOPUS : 7
연도 인용수 순위
1 T. M. Jahns, R. C. Becerra, and M. Ehsani, "Integrated current regulation for a brushless ECM drive," IEEE Trans. on Power Electronics, vol. 6, no. 1, pp. 118-126, 1991   DOI   ScienceOn
2 M. Saif, "Robust servo design with applications," Proc. Inst. Elect. Eng., vol. 140, no. 2, pp. 87-92, 1993
3 H. G. Yee, C. S. Hong, J. Y. Yoo, H. G. Jang, Y. D. Bae, and Y. S. Park, "Sensorless drive for interior permanent magnet brushless DC motors," Proc. of IEEE International Conf. on Electric Machines and Drives, 18-21, pp. TD1/3.1-3.3, 1997
4 P. Pillay and R. Krishnan, "Modeling, simulation, and analysis of permanent-magnet motor drives, part II: The bruahless DC motor drive," IEEE Trans. on Industry Applications, vol. 25, no. 2, pp. 274-279, 1989   DOI   ScienceOn
5 T. H. Kim and M. Ehasani, "Sensorless control of the BLDC motors from near-zero to high speeds," IEEE Trans. on Power Electronics, vol. 19, no. 6, pp. 1635-1645, 2004   DOI   ScienceOn
6 K. Iizuka, H. Uzuhashi, and M. Kano, "Microcomputer control for sensorless brushless motor," IEEE Trans. on Industry Applications, vol. 27, pp. 595-601, 1985
7 N. Matsui, "Sensorless PM brushless DC motor drives," IEEE Trans. on Industrial Electronics, vol. 43, no. 2, pp. 300-308, 1996   DOI   ScienceOn
8 B. Marx, D. Koenig, and J. Ragot, "Design of observers for Takagi-Sugeno descriptor systems with unknown inputs and application to fault diagnosis," Proc. Inst. Elect. Tech., vol. 1, no. 5, pp. 1487-1495, 2007   DOI   ScienceOn
9 Q. Jiang, C. Bi, and R. Huang, "A new phasedelay- free method to detect back EMF zerocrossing points for sensorless control of spindle motors," IEEE Trans. Magn., vol. 41, no. 7, pp. 2287-2294, 2005   DOI   ScienceOn
10 J. C. Moreira, "Indirect sensing for rotor flux position of permanent magnet AC motors operating over a wide speed range," IEEE Trans. on Industry Applications, vol. 32, no. 6, pp. 1394-1401, 1996   DOI   ScienceOn
11 J. X. Shen, Z. Q. Zhu, and D. Howe, "Sensorless flux-weakening control of permanent-magnet brushless machines using third harmonic back EMF," IEEE Trans. on Industry Applications, vol. 40, no. 6, pp. 1629-1636, 2004   DOI   ScienceOn
12 T. G. Park, J. S. Ryu, and K. S. Lee, "Actuator fault estimation with disturbance decoupling," Proc. Inst. Elect. Eng., vol. 147, no. 5, pp. 501- 508, 2000   DOI   ScienceOn
13 G. J. Su and J. W. Mckeever, "Low cost sensorless control of brushless DC motors with improved speed range," IEEE Trans. on Power Electronics, vol. 19, pp. 296-302, 2004   DOI   ScienceOn
14 S. Ogasawara and H. Akagi, "An approach to position sensorless drive for brushless DC motors," IEEE Trans. on Industry Applications, vol. 27, no. 5, pp. 928-933, 1991   DOI   ScienceOn
15 A. T. Alexandridis and G. D. Galanos, "Design of an optimal current regulator for weak AC/DC systems using Kalman filtering in the presence of unknown inputs," Proc. IEE, vol. 136, no. 2, pp. 57-63, 1989
16 H. R. Andersen and J. K. Pedersen, "Sensorless ELBERFELD control of brushless DC motors for energy-optimized variable-speed household refrigerators," EPE Conf. Rec., vol. 1, pp. 314- 318, 1997
17 S. H. Huh, S. J. Seo, I. Choy, and G. T. Park, "Design of a robust stable flux observer for induction motors," KIEE J. Electr. Eng. Technol., vol. 2, no. 2, pp. 280-285, 2007   과학기술학회마을   DOI
18 M. Aldeen and J. F. Marsh, "Decentralised observer-based control scheme for interconnected dynamical systems with unknown inputs," Proc. Inst. Elect. Eng., vol. 146, no. 5, pp. 349-358, 1999   DOI   ScienceOn
19 K. Xin, Q. Zhan, and J. Luo, "A new simple sensorless control method for switched reluctance motor drives," KIEE J. Electr. Eng. Technol., vol. 1, no. 1, pp. 52-57, 2006   과학기술학회마을   DOI
20 T. G. Park and K. S. Lee, "Process fault isolation for linear systems with unknown inputs," Proc. Inst. Elect. Eng., vol. 151, no. 6, pp. 720-726, 2004   DOI   ScienceOn