A Study on Position Control of Hydraulic Single-Rod Cylinder Subjected to Load Disturbance

부하외란을 받는 편로드 유압실린더의 위치제어에 관한 연구

  • 윤일로 (경남대학교 기계자동화공학부) ;
  • 염만오 (경남대학교 기계자동화공학부)
  • Published : 2003.12.01

Abstract

A PID controller integrated with a velocity feedback is designed for fluid power elevator model system in this study. In this case, for outside disturbance load a hydraulic cylinder and a pressure control valve are used. In this method overshoot is reduced and settling time becomes also shorter than the values achieved from the PID controller system only In conclusion a PID controller integrated with a velocity feedback is considered a suitable control method for fluid power elevator system.

Keywords

References

  1. Lee, J.S., 'Position Control of Hydraulic Single-Rod Cylinder System with PID Controller,' Korea Uni., M.A. Dissertation, 1990
  2. Watton J., 'A Digita Compensator Design for Electrohydraulic Single-Rod Cylinder Position Control System,' ASME, J. Dynamic Systems, Measurement, and Control, Vol. 12, pp.403-409, 1990
  3. Pietola M.T., Vilenius M.J., 'Sensitivity of A Position Servo System to Variations in the Constructive Parameters in Transient and Steady State,' Mech. Mach. Theory, Vol. 26, No. 3, pp. 261-274, 1991 https://doi.org/10.1016/0094-114X(91)90068-F
  4. Thayer W.J., 'Transfer Function for Moog Servalves,' Moog Technical Bulletin 103, 1965
  5. Yamahashi K., 'Control of an Electrohydraulic Servo System Using Adaptive Control Technique,' SOPHIA UNIVERSITY, Ph.D. Dissertation, 1991
  6. Im, P.H., 'A Study on the Position Control of Hydraulic Single-Rod Cylinder Subjected to Load Disturbance,' Kyungnam Uni., M.A. Dissertation, 2002
  7. Ziegler J.G., Nichols N.B., 'Optimum Settings for Automatics Controls,' Trans. ASME, 64, pp.759-768, 1942
  8. Jin, S.M., Im, S.O., Lee, J.O., 'Robust Controller of Hydraulic Servo System with Large Inertia Load,' Proceeding of the KSPE Annual Spring Meeting 1995, pp.289-292, 1995