Abstract The paper develops a method for automatic tuning of the PID process control parameters, which is called “auto-tuning" shortly. The procedure of applying the method consists of (1) sampling a process response to an automatically applied input signal, (2) processing the sampled data for estimating characteristic values of the process, and (3) calculating the optimal values of the PID control parameters. For the optimization, a new type of performance index, i.e., a weighted integral of squared error is introduced. The procedure is implemented on a small size digital controller and applied to some real processes, yielding satisfactory results.
[1]
Nobuo Sannomiya,et al.
A New Optimization Method of PID Control Parameters for Automatic Tuning by Process Computer
,
1979
.
[2]
Rolf Isermann.
Advanced methods of process computer control for industrial processes
,
1981
.
[3]
Björn Wittenmark,et al.
On Self Tuning Regulators
,
1973
.
[4]
K. L. Chien,et al.
On the Automatic Control of Generalized Passive Systems
,
1952,
Journal of Fluids Engineering.
[5]
Willard I. Zangwill,et al.
Minimizing a function without calculating derivatives
,
1967,
Comput. J..