Open AccessGraphical Robust PID Tuning of TITO Processes
Author(s) -
D. Rajesh Reddy,
R. Kiranmayi
Publication year - 2019
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.b4433.129219
Subject(s) - pid controller , control theory (sociology) , phase margin , matlab , transfer function , stability (learning theory) , computer science , controller (irrigation) , control engineering , engineering , control (management) , artificial intelligence , temperature control , amplifier , computer network , agronomy , electrical engineering , operational amplifier , bandwidth (computing) , machine learning , biology , operating system
In this paper, PID controller for Decentralized TITO process is tuned using graphical approach. Ideal decoupler is used to decouple TITO system and then each decoupled system is approximated to FOPDT model. The Graphical method uses boundaries determined by the loci of stability and frequency domain characteristics such as Gain, and Phase margin etc. common region of these loci gives the values of the PID controller coefficients. The results are validated using MATLAB and the simulated results are presented for Coupled tank system.