Design and Implementation of LMI-Based H2 Control for Vertical Nonlinear Coupled-Tank System

Design and Implementation of LMI-Based H2 Control for Vertical Nonlinear Coupled-Tank System

Jaffar Seyyed Esmaeili, Abdullah Başçi
Copyright: © 2021 |Volume: 10 |Issue: 4 |Pages: 16
ISSN: 2160-9772|EISSN: 2160-9799|EISBN13: 9781799858997|DOI: 10.4018/IJSDA.20211001.oa14
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MLA

Esmaeili, Jaffar Seyyed, and Abdullah Başçi. "Design and Implementation of LMI-Based H2 Control for Vertical Nonlinear Coupled-Tank System." IJSDA vol.10, no.4 2021: pp.1-16. http://doi.org/10.4018/IJSDA.20211001.oa14

APA

Esmaeili, J. S. & Başçi, A. (2021). Design and Implementation of LMI-Based H2 Control for Vertical Nonlinear Coupled-Tank System. International Journal of System Dynamics Applications (IJSDA), 10(4), 1-16. http://doi.org/10.4018/IJSDA.20211001.oa14

Chicago

Esmaeili, Jaffar Seyyed, and Abdullah Başçi. "Design and Implementation of LMI-Based H2 Control for Vertical Nonlinear Coupled-Tank System," International Journal of System Dynamics Applications (IJSDA) 10, no.4: 1-16. http://doi.org/10.4018/IJSDA.20211001.oa14

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Abstract

This paper presents the mathematical design and implementation of a robust H_2 output feedback controller for the vertical nonlinear coupled-tank system. Considering the growth of the complicated chemical processes in industries in the last decades, the necessity for the controllers with high robustness and proficiency is demanded. Therefore, to overcome some deficiencies of classical controllers such as Proportional Integral (PI), the robust H_2 output feedback controller is proposed to control the liquid level of the coupled tank system benchmark. Because of the nonlinearity of the system and the interactions between two tanks, the behavior of the controller in terms of the performance and disturbance rejection is on the main scene. The Linear Matrix Inequalities (LMI) is used to derive the design procedure. The effectiveness of the proposed approach in the setpoint tracking is highlighted in comparison with the PI plus feedforward controller and the acceptable results are achieved.