Graphical Robust PID Tuning of TITO Processes
Devineni Rajesh Reddy1, R Kiranmayi2
1Devineni Rajesh Reddy*, Electrical and Electronics Engineering, JNTUA College of Engineering, Anantapur, India.
2R Kiranmayi, Electrical and Electronics Engineering, JNTUA College of Engineering, Anantapur, India.
Manuscript received on November 27, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 5229-5233 | Volume-9 Issue-2, December, 2019. | Retrieval Number: B4433129219/2019©BEIESP | DOI: 10.35940/ijeat.B4433.129219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: 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.
Keywords: PID control, Decentralized, TITO, Coupled Tank system, Graphical method of PID tuning.