Comparison of conventional LQR and LMI based LQR controller performance on the DC-DC Zeta converter with parameters uncertainty

Sarkawi, Hafez and Yoshito, Ohta (2017) Comparison of conventional LQR and LMI based LQR controller performance on the DC-DC Zeta converter with parameters uncertainty. In: The 4th Multi-symposium Control System 2017, 6-9 March 2017, Okayama, Japan.

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Abstract

This paper presents the dc-dc zeta converter control. In order to cope with parameters uncertainty, the convex polytope modeling of the dc-dc zeta converter is introduced. To regulate the dc output voltage, the linear matrix inequality (LMI) is formulated based on linear quadratic regulator (LQR) problem to find the state-feedback gain for the convex polytope model. Simulation results are presented to compare the transient responses between conventional LQR and LMI based LQR. The result shows that the LMI based LQR can cope with high parameter uncertainty compared to the conventional LQR. The trade-off however is the high ripple presents in the control duty-ratio.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Control duty-ratio, Dc-dc Zeta Converter, LQR, LMI, Parameters Uncertainty
Divisions:	Faculty of Engineering Technology > Department of Electronics & Computer Engineering Technology
Depositing User:	HAFEZ SARKAWI
Date Deposited:	09 May 2022 12:48
Last Modified:	09 May 2022 15:53
URI:	http://eprints.utem.edu.my/id/eprint/25168
Statistic Details:	View Download Statistic

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