Modelling and pso-based LQR controller design for coupled tank system

Fiona Serina, Daud (2014) Modelling and pso-based LQR controller design for coupled tank system. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Industrial application for liquid level and flow control is used tremendously in a process control industries such as the water treatment industries, paper making industries and petrochemical industries. Level and flow control is important to ensure the quality and performance of the system can be maintained. This project is related on how to control the water level in the coupled-tank while both tanks is still regulating. It can be classified as Single-Input Single-Output (SISO) system as the process of this system only control one output using one input. Mathematical model can be obtained based on the experimental data collected from the coupled tank system. The data will be loaded in a process called system identification where the mathematical representation or transfer function of the system can be determined. The validity of the transfer function will be verified before proceeds to controller design. Controller is used as a tool to improve the stability and performance of the transient response of the system. Hence, for this project LQR controller was selected as the controller to control and improve the transient response of the system. The LQR parameter is obtained using the optimization technique called Particle Swarm Optimization (PSO). To validate the result, system performance using LQR controller will be compared with PID controller.

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