Cubic state observer-based modified repetitive controller for uncertain systems

Naiwrita Dey and Ujjwal Mondal

International Journal of Critical Infrastructures, 2024, vol. 20, issue 6, 524-537

Abstract: Work presented in this paper modifies the conventional repetitive controller design with a cubic state observer in a state feedback setting. The new design methodology largely enhances the tracking performance of the controller subjected to a class of LTI systems with parametric uncertainty. Repetitive controller design has been modified with a cubic order polynomial state observer. Performance advantage offered by the proposed controller design compared to the existing method and inclusion of nonlinear term in the error dynamics of the observer modifies the control law. A Lyapunov-Krasovskii functional is chosen and the sufficient robust stability condition for the proposed controller is derived. A numerical example is presented to illustrate the efficacy of the proposed method and upgraded performance is observed compared to existing method. Rapid prototyping of the proposed controller is carried out using a microcontroller board.

Keywords: repetitive controller; periodic reference; state observer; cubic; Lyapunov-Krasovskii; uncertainty. (search for similar items in EconPapers)
Date: 2024
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.inderscience.com/link.php?id=142459 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ids:ijcist:v:20:y:2024:i:6:p:524-537

Access Statistics for this article

More articles in International Journal of Critical Infrastructures from Inderscience Enterprises Ltd
Bibliographic data for series maintained by Sarah Parker ().