공정 제어를 위한 적응 GP-PID의 구현과 동조

Implementation and tuning of adaptive generalized predictive PID for process control

  • 이창구 (전북대학교 제어계측공학과) ;
  • 설오남 (전북대학교 전기공학과) ;
  • 김성중 (전북대학교 제어계측공학과)
  • Lee, Chang-Gu (Dept.of Control Instrumentation Engineering, Engineering College, Chonbuk National University) ;
  • Seol, O-Nam (dept.of Electric Engineering, Chonbuk National University) ;
  • Kim, Seong-Jung (Dept.of Control Instrumentation Engineering, Engineering College, Chonbuk National University)
  • 발행 : 1997.04.01

초록

In this paper, we present a GP-PID(Generalized Predictive PID) controller which has the same structure as a generalized predictive control with steady-state weighting. The proposed controller can perform better than the conventional PID controller because it includes intrinsic delay-time compensator. The PID tuning parameters and delay-time compensator are calculated by equating the two degree of freedom PID to a linear form of GPC. The proposed controller is combined with a supervisor for safe start and self-tuning. GP-PID controller has been tested for various numerical models and an experimental stirred tank heater. As a result, it was observed that the proposed controller shows a satisfactory performance for variable delay as well as stochastic disturbance.

키워드

참고문헌

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