Publication

Closed-loop actuator-fault detection and isolation using set tubes and invariant sets

Conference Article

Conference

IFAC World Congress (IFAC)

Edition

19th

Pages

8030-8035

Doc link

http://dx.doi.org/10.3182/20140824-6-ZA-1003.01653

File

Download the digital copy of the doc pdf document

Authors

Abstract

This paper proposes a new actuator-fault detection and isolation (FDI) strategy for closed-loop discrete time-invariant systems by using invariant sets and tubes. In this approach, invariant sets are used for fault detection (FD) and the establishment of FDI conditions, while the tubes are generated for fault isolation (FI) at transient state. Comparing with the existing set-theoretic FDI techniques, the advantage of this approach consists in that it exhibits a balance between the conservativeness of FDI conditions, the fast FI response and the computational complexity. The eectiveness of the proposed technique is illustrated by a numerical example.

Categories

control system analysis, control theory, observability.

Author keywords

fault detection and isolation, invariant sets, zonotopes

Scientific reference

F. Xu, V. Puig, C. Ocampo-Martínez, F. Stoican and S. Olaru. Closed-loop actuator-fault detection and isolation using set tubes and invariant sets, 19th IFAC World Congress, 2014, Cape Town, South Africa, pp. 8030-8035.