Publication

Interval Luenberger-like observer design for fault detection and state estimation in one-sided Lipschitz quadratically inner-bounded systems

Conference Article

Conference

6th International Conference on Control and Fault-Tolerant Systems (SysTol'2021)

Edition

2025

Pages

216-221

Doc link

http://dx.doi.org/10.1109/SysTol66549.2025.11267317

File

Download the digital copy of the doc pdf document

Authors

Abstract

This paper presents the design of an interval observer (IO) for systems characterized by nonlinearities that are assumed to fulfill one-sided Lipschitz quadratically innerbounded (OSL-QIB) conditions. This novel approach extends conventional design of IO for Lipschitz systems to OSL-QIB systems with the aim of improving observer design and convergence. Additionally, this new IO design is applied to fault detection, and state estimation which is crucial to guarantee normal process operation. A bioreactor for biomass production and a FHN system are considered as case studies to test the performance of the approach for fault detection and state estimation purposes, respectively.

Categories

control theory.

Scientific reference

J.P. Arango, L. Etienne, E. Duviella, K. Langueh, P. Segovia and V. Puig. Interval Luenberger-like observer design for fault detection and state estimation in one-sided Lipschitz quadratically inner-bounded systems, 2025 6th International Conference on Control and Fault-Tolerant Systems, 2025, Ayia Napa (Cyprus), pp. 216-221.