Active Disturbance Rejection Control of a Coupled-Tank System

In process industries, liquid is pumped and stored in interacting coupled tanks. The liquid level in these tanks must be accurately controlled. This study aims to investigate the performance of the active disturbance rejection control method in controlling a coupled-tank system. A mathematical model...

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Bibliographic Details
Published in:Journal of engineering (Cairo, Egypt) Egypt), 2018-01, Vol.2018 (2018), p.1-6
Main Author: Abu Khadra, Fayiz
Format: Article
Language:English
Subjects:
Active control
Automation
Computer simulation
Control systems
Control theory
Controllers
Design
Eigenvalues
Feedback control
Hydrocarbons
International conferences
Mathematical models
Parameter estimation
Rejection
Storage tanks
Tanks
Time domain analysis
Water levels
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Summary:In process industries, liquid is pumped and stored in interacting coupled tanks. The liquid level in these tanks must be accurately controlled. This study aims to investigate the performance of the active disturbance rejection control method in controlling a coupled-tank system. A mathematical model of the coupled-tank system is derived to facilitate a simulation study. Assuming that the water level in the second tank is the only measured state, an extended observer with time-varying parameters estimates the second state and the total disturbances of the system. The system is then regulated using a time-varying feedback controller. The results show the effectiveness of the method in improving the time domain measures and the disturbance rejection compared to other controllers.
ISSN:2314-4904
2314-4912
2314-4912
DOI:10.1155/2018/7494085