Reference Model Feedback Control and Stability Evaluation for Control System with Hard Non-linearities

견비선형을 갖는 제어시스템에 대한 기준모델 피드백제어 및 안정성평가

  • Published : 2006.10.15

Abstract

The paper proposes reference model error feedback control scheme for motion control system with hard non-linear components as like saturation and dead-zone in plant input part. Additionally, the plant has the system uncertainty effected by plant model parameter deviation and disturbance. The control algorithm uses the reference model to apply additional feedback loop with the error between reference model output and actual output effected by disturbance and non-linear components. And the stability evaluation based on Popov stability and controller design method are formulated to be performed. The effectiveness of the proposed scheme is examined by simulations. The results are proven by reasonable performances following reference model responses with good disturbance rejection performance without over-tuning of controller.

Keywords

References

  1. Ogata, K., 1990, Modern Control Engineering, Prentice Hall
  2. Astrom, K. and Hagglund, T., 1988, Automatic Tuning of PID Controllers, Instrument Society of America
  3. Dep. of Automatic Control in Lund Institute of Technology, 1996, Activity Report 1995-1996, Lund Univ., Sweden, 1996
  4. Jung, Y. C. and Lee, G. B., 1999, 'Controller Refinement Method using Identification of Closed-loop System,' Proceeding of the KSPE, Vol. 1, pp. 314-217
  5. Jung, Y. C. and Lee, G. B., 2000, 'Controller Auto-tuning Scheme using System Monitoring in Frequency Domain,' Proceeding of the KSPE, Vol. 2, pp. 136-139
  6. Jung, Y. C. and Lee, G. B., 2001, 'Controller Auto-tuning Scheme Improving Feedback System Performance in Frequency Domain,' Transactions of the Korean Society of Machine Tool Engineers, Vol. 10, No.3, pp. 26-30
  7. Bellinger, J. and Duffie, N., 1988, Computer Control of Machines and Processes, Addison Wesley
  8. Landau, I., 1990, System Identification and Control Design, Prentice Hall
  9. Lilja, M., 1989, Controller Design by Frequency Domain Approximation, Report CODEN: LUTFD2 /(TFRT - 1031)/ 1-107/(1989) (Ph. D. Thesis), Dep. of Automatic Control, Lund, Sweden
  10. Vidyasagar, M., 1978, Nonlinear Systems Analysis, Prentice Hall
  11. Sastry, S., 1999, Nonlinear Systems: Analysis, Stability, and Control, Springer-Verlag, 1999
  12. Yang, H. S., Jung, Y. C. and Lee, G. B., 2001, 'Continuous-Time Controller Design using Identification of Feedback System in Frequency Domain,' Proceeding of the KSME, Vol. 1, No. 2, pp. 664-669
  13. Jung, Y. C., Shim, Y. B. and Lee, G. B., 2001, 'Discrete-Time Controller Design using Identification of Feedback System in Frequency Domain,' Proceeding of the KSME, Vol. 1, No. 2, pp. 99-104