Author/Authors :
Somanath Majhi، نويسنده ,
Title Of Article :
On-line PI control of stable processes
Latin Abstract :
A relay based on-line automatic tuning method for PI controllers for stable processes is presented. In the proposed method, prior
to controller re-tuning a relay in tandem with the controller and plant induces limit cycle oscillations. Based on the limit cycle measurements,
a first order plus dead time (FOPDT) model of the process dynamics is obtained. Simple tuning rules based on ISTE
performance criterion and the first order model are developed. The controller settings may be re-tuned non-iteratively to achieve
enhanced performance without disrupting closed loop control. A number of simulation examples are given to illustrate the potential
advantages of the proposed on-line tuning method.
NaturalLanguageKeyword :
On-line PI control , Asymmetrical relay , stable process
JournalTitle :
Studia Iranica
