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Media type:
E-Article
Title:
Design of event-triggered natural second-order observers for second-order vector systems
Contributor:
Huong, Dinh Cong;
Huynh, Van Thanh;
Trinh, Hieu
Published:
SAGE Publications, 2024
Published in:
Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering (2024)
Language:
English
DOI:
10.1177/09596518241236938
ISSN:
0959-6518;
2041-3041
Origination:
Footnote:
Description:
The problem of designing event-triggered natural second-order state observers for second-order vector systems subject to external disturbances is considered in this paper. In this work, state observer is constructed using discrete measurements at instants when an event-triggered condition is satisfied. Due to the errors that arise by using the event-triggered mechanism and the external disturbance, the method in this paper only robustly estimates the state position and the state velocity of the second-order vector observers instead of estimating them asymptotically. Instead of using the method based on a parameter-dependent Lyapunov function in investigating the stability of the dynamic error system of natural second-order observers, a convex optimization problem is established in this paper to give an event-triggered mechanism and minimized levels in evaluating the boundedness of the dynamic error system of the event-triggered natural second-order observers. An automobile suspension and two numerical examples demonstrate the effectiveness of the proposed method.