Journal ArticleDOI
Simple Tuning of Discrete PI and PID Controllers
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In this article, the authors investigated the effectiveness of a simple procedure for tuning discrete PI and PID controllers applied to processes subject to set point changes and load disturbances and obtained closed-loop stability properties and a complete set of graphical tuning relationships to minimise the ITAE performance index.Abstract:
The paper investigates the effectiveness of a simple procedure for tuning discrete PI and PID controllers applied to processes subject to set point changes and load disturbances Previous work is extended to obtain closed-loop stability properties and a complete set of graphical tuning relationships to minimise the ITAE performance index when the process under control can be represented adequately by a single time constant and time delay In addition, the simple tuning procedure is shown to exhibit satisfactory performance when applied to the control of a process represented by an eighth order transfer functionread more
Citations
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Journal ArticleDOI
Model reference optimal steady‐state adaptive computer control of plastics extrusion processes
G. A. Hassan,J. Parnaby +1 more
TL;DR: In this article, the first true hierarchical automatic optimal control scheme for plastics extrusion has operated satisfactorily in the laboratory and is described by reference to a specific 40 mm diameter screw extruder fitted with a variable geometry annular blow molding die head.
Journal ArticleDOI
Some features common to inventory system and process controller design
Denis Royston Towill,S.S. Yoon +1 more
TL;DR: This paper describes two methods of setting the production control law: the coefficient plane model matching technique, and the Nichols-Ziegler parameter setting rule, and concludes by assessing system performance via a quadratic cost index function.
Journal ArticleDOI
An improved 2-degree-of-freedom internal model proportional–integral–derivative controller design for stable time-delay processes:
Sheng Wu,Ziwei Li,Ridong Zhang +2 more
TL;DR: It is shown that the adjustment of set-point tracking performance and disturbance rejection characteristics can be decoupled by employing the developed strategy, which indicates that more degrees of freedom are obtained for the proposed controller design.
Journal ArticleDOI
Improved neuroendocrine intelligent control for a permanent magnet linear synchronous motor
TL;DR: An intelligent controller based on the obtained neuroendocrine algorithm is implemented in the control system of a permanent magnet linear synchronous motor, and the experimental results show that the controller presents many advantages, such as fast dynamic responses, strong online adjustment ability, and good running stability in theControl system, all of which improve the robustness of thecontrol system.
Proceedings ArticleDOI
Nejat Control Gain Series Method
TL;DR: In this paper , the Nejat Control Gain Series Method (NCGM) is used to tune either Fuzzy logic control and digital logic control. But, it is not suitable for non-linear control systems.
References
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Journal ArticleDOI
Optimum Settings for Automatic Controllers
J. G. Ziegler,N. B. Nichols +1 more
TL;DR: In this paper, the three principal control effects found in present controllers are examined and practical names and units of measurement are proposed for each effect and corresponding units for a classification of industrial processes in terms of two principal characteristics affecting their controllability.
Journal ArticleDOI
Sampled-Data Control Systems
Journal ArticleDOI
Discrete PID Controller with a Single Tuning Parameter
P. D. Roberts,K. E. Dallard +1 more
TL;DR: In this paper, a simple procedure for tuning discrete proportional integral derivative control algorithms is described, which is applied to the regulation of a process represented by a single time constant and time delay which is subjected to load disturbances.