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Position Control of a Hydraulic System Subjected to Disturbances Using a Variable Structure Controller

가변구조제어기를 이용한 외란을 받는 유압시스템의 위치제어

  • 박근석 (충남대학교 기계설계공학과) ;
  • 김형의 (충남대학교 기계설계공학과)
  • Published : 2004.10.01

Abstract

In this paper, a variable structure controller(VSC) is used to control the position of the hydraulic servo system subjected to unknown disturbances. The system consists of two cylinders, which connected in series. One cylinder executes position control, the other executes force control to generate disturbances. In order to control each cylinder, interaction must be considered between two cylinders because two cylinders are connected in series. Therefore, the controller is designed regarding interaction between two cylinders as disturbances. Performance of the proposed controller was verified through experiments and compared to PID controller. The experiments showed that the proposed controller had a good performance and robustness.

Keywords

References

  1. H. E. Merritt, Hydraulic Control System, John Wiley & Sons, New York, 1967
  2. J. S. Yun, H. S. Cho, 'Application of an adaptive model following control technique to a hydraulic servo system subjected to unknown disturbance', Journal of Dynamic Systems, Measurement, and Control, vol. 113, pp. 479-486, 1991 https://doi.org/10.1115/1.2896435
  3. 이교일, 이동춘, '가변구조이론을 이용한 편로드 유압 실린더의 디지탈제어', 한국자동제어학술회의논문집, pp. 1133-1138, 1991
  4. M. J. Vilenius, 'The application of sensitivity analysis to electrohydraulic position control servos', Trans. of ASME Journal of Dynamic Systems, Measurements, and Control, vol. 105, pp. 77-82, 1983 https://doi.org/10.1115/1.3149648
  5. G. A. Sohl and J. E. Bobrow, 'Experiments and simulations on the nonlinear control of a hydraulic servo system', IEEE Trans. on Control System Technology, vol. 7, no. 2, pp. 238-247, 1999 https://doi.org/10.1109/87.748150
  6. 곽동훈, 조규승, 정봉호, 이진걸, '실시간 2차원 학습 신경망을 이용한 전기 . 유압서보시스템의 추적제어', Journal of Control, Automation, and Systems Engineering, vol. 9, no. 6, pp. 435-441, 2003
  7. M.-C. Shih and Y.-R. Sheu, 'The adaptive position control of an electro hydraulic servo cylinder', JSME International Journal, Series III, vol. 34, no. 3, pp. 370-376, 1991
  8. 박근석, 임준영, 강이석, '뉴로-퍼지 제어기를 이용한 유압서보시스템의 추적제어', Journal of Control, Automation, and Systems Engineering, vol. 7, no. 6, pp. 509-517, 2001
  9. V. I. Utkin, 'Variable structure systems with sliding modes', IEEE Trans. on Automatic Control, vol. ac-22, no. 2, pp. 212-222, 1977
  10. D. Q. Zhang, S. K. Panda, 'Chartering-free and fast-response sliding mode controller', IEE Proceedings Theory Appl., vol. 146, no. 2, pp. 171-177, 1999 https://doi.org/10.1049/ip-cta:19990518
  11. Y. R. Hwang, and M. Tomizuka, 'Fuzzy smoothing algorithms for variable structure systems', IEEE Trans. Fuzzy Systems, vol. 2, no. 4, pp. 277-285, 1994 https://doi.org/10.1109/91.324807
  12. IEEE Trans. Fuzzy Systems v.2 no.4 Fuzzy smoothing algorithms for variable structure systems Y. R. Hwang;M. Tomizuka https://doi.org/10.1109/91.324807