Publication

Actuator-fault detection and isolation based on interval observers and invariant sets

Conference Article

Conference

IEEE Conference on Decision and Control (CDC)

Edition

52nd

Pages

4385-4390

Doc link

http://dx.doi.org/10.1109/CDC.2013.6760564

File

Download the digital copy of the doc pdf document

Abstract

This paper proposes an interval observer-based actuator fault detection and isolation (FDI) approach. An interval observer matching the healthy system mode is designed to monitor the system. When the system is in different modes, state or output interval vectors predicted by the interval observer manifest different dynamical behaviors. To guarantee reliable FDI, a collection of invariant set-based FDI conditions are established. Under these conditions, actuator faults can be accurately detected and isolated during the transition between different modes. At the end, the effectiveness of this proposed approach is presented by using a numerical example.

Categories

control system analysis, control theory, observability.

Author keywords

fault detection, actuator faults, invariant sets, interval observers

Scientific reference

F. Xu, V. Puig, C. Ocampo-Martínez, F. Stoican and S. Olaru. Actuator-fault detection and isolation based on interval observers and invariant sets, 52nd IEEE Conference on Decision and Control, 2013, Florence, pp. 4385-4390.