Application of Personal Computer as a Self-Tuning PID Controller

  • Tanachaikhan, L. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Sriratana, W. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Pannil, P. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Chaikla, A. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Julsereewong, P. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Tirassesth, K. (Faculty of Enigneering, King Mongkut's Institute of Technology Ladkrabang)
  • 발행 : 2000.10.01

초록

Controlling the process by PID controller is widely used in industry by applying Ziegler-Nichols method in analyzing parameter of the controller. However, in fact. it is still necessary to tune parameter in order to obtain the best process response. This paper presents a Self-Tuning PID controller utilizes the personal computer to synthesize and analyze controller parameter as well as tune for appropriate parameter by using Dahlin method and Extrapolation. Experimental results using a Self-Tuning PID controller to control water level and temperature, it is found that the controller being developed is able to control the process very effectively and provides a good response similar to the controller used in the industry.

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