Distributed estimation and control of a four-tank process

Awatef K Ali 1 and Magdi S Mahmoud 2, *

1 Electronics Department, National Telecommunications Institute, Nasr City, Cairo-Egypt.
2 Control and Instrumentation Engineering Department, KFUPM, PO Box 5067, Dhahran 3126, Saudi Arabia.
 
Research Article
Global Journal of Engineering and Technology Advances, 2021, 09(02), 133–142.
Article DOI: 10.30574/gjeta.2021.9.3.0164
Publication history: 
Received on 12 November 2021; revised on 25 December 2021; accepted on 27 December 2021
 
Abstract: 
A multivariable process of four interconnected water tanks is considered for modeling and control. The objective of the current study is to design and implement a distributed control and estimation (DEC) for a multivariable four-tank process. Distributed model and inter-nodal communication structure are derived from global state–space matrices, thus combining the topology of plant flow sheet and the interaction dynamics across the plant subunits. Using experimental data, the process dynamics and disturbance effects are modeled. A typical lab-scale system was simulated and the obtained results demonstrated the potential of the DEC algorithm.
 
Keywords: 
Distributed control and estimation; Interconnected systems; Multivariable four-tank process; Four-tank system.
 
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