전자공학회논문지 IE

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

Decoupling Control of Three-tank Liquid Level Systems Based on Feedforward Compensation

Feedforward 보상에 근거한 3개의 탱크 액체 레벨 시스템의 통제 분리

  • Shi, Xue-Wen (College of Electrical Information and Automation, Qufu Normal University)
  • 석학문 (중국 곡부사범대학교 전기정보자동화대학)
  • Published : 2008.09.25
Download PDF
⟨ Previous Next ⟩

Abstract

By considering decoupling between loops as a kind of measurable disturbance, a steady-state decoupling method based on feedforward compensation is proposed for a three-tank liquid level system often encountered in practical process control. In addition, the three-tank liquid level system's dynamic model with structure of two-input and two-output is presented according to its working principle. Finally simulation experiments given in C++Builder language demonstrate the effectiveness of the proposed method.

실제 프로세스 제어 중의 3개의 탱크 액체가 이 결합 시스템을 통제하는 작업 원리에 근거하여 두 개의 입력과 두 개의 출력 시스템의 수학적 모델을 제시하였다. 귀로 사이의 결합 작용을 한 종류의 형식의 요소로 간주하고 Feedforward 보상에 근거하여 정형화한 형태의 통제 분리 방법을 제시하였다. 그리고 두 개의 입출력 결합 시스템에 대해 통제 분리를 진행하고 마지막으로 프로그래밍을 통해 이 통제 분리 프로세스의 실험을 수행하였다. 또한 시뮬레이션 결과는 그 방법이 양호한 통제 분리 효과를 얻을 수 있다는 것을 나타내었다.

Keywords

References

  1. Narendra K S, Balakrishnan J. "Improving transient response of adaptive control systems using multiple models and switching." IEEE Trans. Automatic Control, 1994, 39(9): pp1861-1866 https://doi.org/10.1109/9.317113
  2. LIU T, ZHANG W D, GU D Y. "Analytical multi-loop PI/PID controller design for two-by two processes with time delays." Industrial & Engineering Chemical Research, 2005, 44(6): pp1832-1841 https://doi.org/10.1021/ie0493715
  3. WANG Q G. HUANG B, GUO X. "Auto-turning of TITO decoupling controllers from steps tests." ISA Transactions, 2000,39(4):pp 407-418 https://doi.org/10.1016/S0019-0578(00)00028-8
  4. Wang X, Li S Y, Cai W J, et al. "Multi-model direct adaptive decoupling control with application to the wind tunnel system." ISA Transactions, 2005,44(1):pp131-143 https://doi.org/10.1016/S0019-0578(07)60050-0
  5. Wang X, Yue H, Chai T Y. "Multivariable decoupling controller using multiple models for a non-minimum phase system." Control and Decision, 2001. 16(1): pp7-13
  6. Wang Xin, Li Shao yuan, Yue Heng. "Multiple models neural network decoupling controller for a nonlinear system." Control and Decision, 2004, 19(4):pp424-428
  7. F. G. Shinskey. Process Control System- application ,Design, and Turning(Third Edition). Tsinghua University Press,2004
  8. WANG W, TANG G Y. "Feedback and Feedforward optimal control for offshore jacket platforms." China Ocean Engineering, 2004, 18(4): pp 515-526
  9. LIU Tao, ZHANG Weidong, OU Linlin. "Analytical design of decoupling control for two-input two-output processes with time delays." Control Theory & Applications, 2006, 23(1): pp31-37