Publication

On the relationship between interval observers and invariant sets in fault detection

Conference Article

Conference

Conference on Control and Fault Tolerant Systems (SYSTOL)

Edition

2nd

Pages

49-54

Doc link

http://dx.doi.org/10.1109/SysTol.2013.6693849

File

Download the digital copy of the doc pdf document

Abstract

In this paper, the relationship between two set theoretic fault detection (FD) approaches, the interval observer based and the invariant set-based approaches, is investigated. In FD, interval observers monitor the system dynamic behavior in real time and generates adaptive intervals for system outputs. Invariant sets focus more on steady state behavior of the system rather than the transient behavior. This paper discusses these two approaches, presents the relationship between them and compares them in the FD task. At the end, a numerical example is used to illustrate the relation between these two approaches.

Categories

control theory, controllability, observability.

Author keywords

fault detection, robustness, intervals, set-membership estimation, constraints satisfaction

Scientific reference

F. Xu, F. Stoican, V. Puig, C. Ocampo-Martínez and S. Olaru. On the relationship between interval observers and invariant sets in fault detection, 2nd Conference on Control and Fault Tolerant Systems, 2013, Nice, France, pp. 49-54.