RGA Based Decoupler Design for a Coupled Tank MIMO Process
C. Ravikumar1, D.Sivakumar2
1Mr.C.Ravikumar, Department of Instrumentation and Control Engineering, A.V.C. College of Engineering, Mannampandal, India.
2Dr.D.Sivakumar. Department of Electronics & Instrumentation Engineering, Annamalai University, Chidambaram, India.
Manuscript received on 25 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 23-26 | Volume-8 Issue-9, July 2019 | Retrieval Number: G5968058719/19©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: The objective of this paper is to develop the Relative Gain Array (RGA) based Decoupler design with PI Controller for a MIMO Process. The contrsoller thus developed is implemented on Laboratory interacting coupled tank process through simulation. This can be regarded as the relevant process control in petrol and chemical industries. These industries involve controlling the liquid level and the flow rate in the presence of nonlinearity and disturbance which justifies the use of PI Controller with Decoupler scheme. For this purpose, mathematical models are obtained for each of the input-output combinations using white box approach and the respective controllers are developed. A detailed analysis on the performance of the chosen process with these controllers is carried out. Simulation studies reveal the effectiveness of proposed controller for MIMO process that exhibits nonlinear behaviour.
Keywords: Interacting coupled tank system, Decoupler, RGA, PI controller, MIMO
Scope of the Article: