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All Stabilizing Disturbance Observer Design for Precise Position Control

정밀 위치제어를 위한 상안정 외란관측기 설계

  • 서상민 (삼성전자 반도체사업부) ;
  • 김하용 (삼성전자 반도체사업부) ;
  • 김경호 (삼성전자 반도체사업부)
  • Received : 2010.04.22
  • Accepted : 2010.07.22
  • Published : 2010.08.20

Abstract

This note represents a new disturbance observer to reduce effects of external disturbances. In case of conventional disturbance observers, additional stabilizing filters, so-called Q-filter, should be used because the conventional ones don't guarantee stability. But, the proposed one doesn't need the stabilizing filter, which is a fundamentally different research result from previous methods. Experimental verifications show this approach is realizable and valid to enhance precise positioning.

Keywords

References

  1. Ohnishi, K., 1987, “A New Servo Method in Mechatronics,” Trans. of Japanese Society of Electrical Engineers, 107-D, pp. 83-86.
  2. Choi, J.-Y., Lee, K.-H., Jun, H.-G., Lee, M.-N., Yang, H. S., Park, N.-C. and Park, Y.-P., 2006, “Disturbance Analysis in an Optical Disk Drive Using Model Based Disturbance Observer and Waterfall Technique,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 1, pp. 40-49. https://doi.org/10.5050/KSNVN.2006.16.1.040
  3. Semba, T., 2003, “A Disturbance Observer to Suppress Vibration Effects of a HDD in a Disk Array System,” Proceeding of the American Control Conference, pp. 1362-1367.
  4. Suh, S. M., 2009, “Discrete-time Controller Design to Attenuate Effects of External Disturbances," Microsystem Technologies, Vol. 15, No. 10, pp. 1645-1651. https://doi.org/10.1007/s00542-009-0865-7
  5. Ishikawa J., 1998, “A Novel Add-on Compensator for Cancellation of Pivot Nonlinearities in Hard Disk Drives,” IEEE Transactions on Magnetics, Vol. 34, No. 4, pp. 1895-1897. https://doi.org/10.1109/20.706735
  6. Gahinet, A. Nemirovskii, Laub, A. J. and M. Chilali, 1994, LMI Control Toolbox, The Mathworks Inc.
  7. Boyd, L. E. Ghaoui, Feron, E. and Balakrishnan, V., 1994, “Linear Matrix Inequalities in System and Control Theory,” SIAM.
  8. Suh, S. M., “Unified $H_{\infty}$ Control to Suppress Vertices of Plant Input and Output Sensitivity Functions,” to Appear in IEEE Transactions on Control System Technology.
  9. Zhang, G.-Z. and Li, Z.-P., 2008, “Analysis and Design of $H_{\infty}$ Robust Disturbance Observer Based on LMI,” Intelligent Control and Automation, WCICA 2008, 7th World Congress on, pp. 4697-4701.
  10. Vidyasagar, M., 1985, Control System Synthesis : A Factorization Approach, The MIT Press.