Adaptive Time Delay Controller

Abstract A time delay controller is proposed in this paper. The controller uses the delay element in positive feedback with a feed-forward reference model. The proposed controller posses attractive properties such as requiring only one tuning parameter. Furthermore, it can be applied to higher-order systems as well as systems with dominant delay. The time delay controller gives better performance and smooth control action as compared with classical PID controller. The basic structure is integrated with an on-line estimation algorithm to form an Adaptive Time Delay Controller (ATDC). Simulation and experimental studies are included in the paper to demonstrate the performance of the proposed adaptive time delay controller.

[1]  Riccardo Scattolini,et al.  Recursive estimation of time delay in sampled systems , 1991, Autom..

[2]  Tore Hägglund,et al.  Automatic Tuning and Adaptation for PID Controllers—A Survey , 1992 .

[3]  C. Hang,et al.  Refinements of the Ziegler-Nichols tuning formula , 1991 .

[4]  Peter J. Gawthrop,et al.  Continuous-time generalized predictive control (CGPC) , 1990, Autom..

[5]  Heinz Unbehauen,et al.  Continuous-time approaches to system identification - A survey , 1990, Autom..

[6]  O Smith,et al.  CLOSER CONTROL OF LOOPS WITH DEAD TIME , 1957 .

[7]  Chang Chieh Hang,et al.  Reduced order process modelling in self-tuning control , 1991, Autom..

[8]  John C. Friedly,et al.  Approximate Dynamic Modeling of Large Staged Systems , 1974 .

[9]  Chang C. Hang,et al.  A Performance Study of Control Systems with Dead Time , 1980, IEEE Transactions on Industrial Electronics and Control Instrumentation.

[10]  Daniel Hodouin,et al.  Development and evaluation of an auto-tuning and adaptive PID controller , 1996, Autom..

[11]  David W. Clarke,et al.  Generalized predictive control - Part I. The basic algorithm , 1987, Autom..

[12]  Munther A. Dahleh,et al.  On slowly time-varying systems , 1991, Autom..

[13]  H. Kurz,et al.  Digital parameter-adaptive control of processes with unknown dead time , 1981, Autom..

[14]  Tore Hägglund.  A Predictive PI Controller for Processes with Long Dead Time , 1989 .

[15]  W. L. Lo,et al.  Adaptive control of dominant time delay systems via polynomial identification , 1995 .

[16]  W. L. Lo,et al.  Adaptive PID control of systems with unknown time delay , 1995 .

[17]  Ahmad B. Rad,et al.  Self-tuning PID controller using Newton-Raphson search method , 1997, IEEE Trans. Ind. Electron..

[18]  Peter J. Gawthrop,et al.  Continuous-time self-tuning control , 1987 .

[19]  Ahmad B. Rad,et al.  Adaptive delay compensated PID controller by phase margin design , 1998 .