전자공학회논문지SC (Journal of the Institute of Electronics Engineers of Korea SC)

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

적분공정을 위한 민감도 함수 $M_{s}$를 이용한 안정된 PID 동조

Stable PID Tuning for Integrating Processes using sensitive function $M_{s}$

  • 이원혁 (원광대학교 제어계측공학과) ;
  • 황형수 (원광대학교 전기전자 및 정보공학과)
  • Lee, Won-Hyok (Department of Control and Instrumentation Engineering, Wonkwang University) ;
  • Hwang, Hyung-Soo (School of Electrical, Electronics and Information Engineering, Wonkwang University)
  • 발행 : 2007.07.25
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초록

본 논문에서는 적분공정이 안정한 조건을 갖게 하는 설정가중치를 갖는 PID제어기의 개선된 동조방법을 제안한다. 이 동조방법은 내부 궤환루프에 PD 제어기를 이용하여 적분공정을 안정되게한 후, 민감도 함수 $M_{s}$를 이용하여 공정의 안전조건에 맞는 PID제어기를 동조하였다. 그리고 적분공정의 특성인 오버슈트를 줄이기 위하여 설정가중치를 갖는 PID제어기를 사용하므로 기종의 제어기가 갖는 결점을 극복했다. 제안되어진 동조 방법은 매우 간단하며 기존의 제어 동조방법보다 더 좋은 성능을 보여준다.

PID control is windely used to control stable processes, however, its application to integrating processes is less common. In this paper we proposed a simple PID controller tuning method for integrating processes with time delay to meet a stable specification. With the proposed PID tuning method, we can obtain stable integrating processes using PD controller in inner feedback loop and a loop transfer function with desired stable specification. This guarantees bout robustness and performance. Simulation examples are given to show the good performance of the proposed tuning method to other methods.

키워드

참고문헌

  1. Astrom, K. J. and Hagglund, T. PID Controllers: Theory, Design, and Tuning, Instrument Society of America. Research Triangle Park, NC, 1995
  2. Kwak, H. J., Sung, S.W. and Lee, 1. On-line process identification and autotuning for integrating processes, Ind. Eng. Chem. Res. 1997, Vol. 36, 5329-5338 https://doi.org/10.1021/ie9605600
  3. Luyben, W.L. Tuning Proportional-Integral-Derivative Controllers for Integrator Deadtime Processes, Ind. Eng. Chem. Res. 1996, Vol.35, 3480-3483 https://doi.org/10.1021/ie9600699
  4. Majhi, S. and Atherton, D.P. Autotuning and controller design for processes with small time delays, IEE Proc.-Control Theory Appl., 1999, Vol 146, No. 5,415-425
  5. Poulin, E. and Pomerleau, A. PID tuning for integrating and unstable processes, IEE Proc.-Control Theory Appl., 1998, Vol. 143, No.5, 429-435
  6. Sung, S.W. and Lee, I. Limitations and Countermeasures of PID controllers. Ind. Eng. Chem. Res. 1996, Vol. 35, No. 8,2596-2610 https://doi.org/10.1021/ie960090+
  7. Tan, W., Liu, J. and Tam, P.K.S. PID Tuning based on loop-shaping H.. control, IEE Proc.-Control Theory Appl., 1998, Vol. 145, No. 6,485-490
  8. Wang, L. and Cluett, W.R. Tuning PID controllers for integrating processes, IEE Proc.-Control Theory Appl. 1997, Vol. 144, No. 5, 385-392
  9. Wang, Y. G. and Shao, H.H. PID autotuner based on gain and phase margin specifications. 1nd.Eng.Chem.Res. 1999,38,3007-3012 https://doi.org/10.1021/ie9808007
  10. Wang, Y.G and Shao, H.H. Optimal tuning for PI controller, Automatica, 2000, 36, 147-152 https://doi.org/10.1016/S0005-1098(99)00130-2
  11. Yuwana, M. and Sehorg, D.E. A new method for on-line controller tuning. AIChE J. 1982, 28, 434-439 https://doi.org/10.1002/aic.690280311
  12. Ya-Gang Wang and Wen-Jian Cai PID Tuning for Integrating Processes with Sensitivity Specification. Proc.- 40th IEEE conference. Dec. 2001, 4087-4091
  13. Jianghua Xu and Huihe Shao, A Novel Method of PID Tuning for Integrating Processes. proc-the 42nd IEEE conference. Dec. 2003, 139-142