Comparative of Diverse Methods for a Nonlinear Process
G. Karpagam1, R. Aasin Rukshna2, G. Savithri3
1G.Karpagam, Department of Instrumentation and Control, Anna University, Saranathan College of Engineering, Tiruchirapalli (Tamil Nadu), India.
2R.Aasin Rukshna, Department of Instrumentation and Control, Anna University, Saranathan College of Engineering, Tiruchirapalli (Tamil Nadu), India.
3G.Savithri, Department of Instrumentation and Control, Anna University, Saranathan College of Engineering, Tiruchirapalli (Tamil Nadu), India.
Manuscript received on 10 September 2014 | Revised Manuscript received on 20 September 2014 | Manuscript Published on 30 September 2014 | PP: 65-67 | Volume-4 Issue-4, September 2014 | Retrieval Number: D1800094414/14©BEIESP
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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: Control of liquid level in a process plays a crucial role in process industries. PID control schemes are most widely used in process control systems represented by chemical processes because of its robustness, simplicity and its excellence in linearity performance criterion. The main objective of model-based controller is to compensate the shift in process and maintain the liquid level on its required target value. Our goal in this paper deals with the study of using a three term control namely the PID controller to find the best tuning method amongst the five tunings methods implemented here such as Ziegler Nicholas (Z-N), modified Z-N, IMC (internal model control, TL (tyreus luyben), CHR (chien hrones reswick) for an single input single output (SISO) liquid level control system. Various time performance criteria’s namely IAE, ISE, ITAE has been used for comparison for high stability and reliability. Compared to the conventional PID tuning methods, the emerged results shows that good performance can be achieved with the proposed IMC method based on its high stability, minimum values of rise, settling time criterions.
Keywords: PID Controller, Tuning Method, Imc.tl.
Scope of the Article: Probabilistic Models and Methods