TY - JOUR
Y1 - 2013/04//
PB - Elsevier
EP - 55
N2 - In this paper a new method for fault isolation in a class of continuous-time stochastic dynamical systems is proposed. The method is framed in the context of model-based analytical redundancy, consisting in the generation of a residual signal by means of a diagnostic observer, for its posterior analysis. Once a fault has been detected, and assuming some basic a priori knowledge about the set of possible failures in the plant, the isolation task is then formulated as a type of on-line statistical classification problem. The proposed isolation scheme employs in parallel different hypotheses tests on a statistic of the residual signal, one test for each possible fault. This isolation method is characterized by deriving for the unidimensional case, a sufficient isolability condition as well as an upperbound of the probability of missed isolation. Simulation examples illustrate the applicability of the proposed scheme.
JF - Annual Reviews in Control
IS - 1
A1 - Castillo López, Angela
A1 - Zufiria Zatarain, Pedro Jose
SN - 1367-5788
VL - 37
TI - Fault isolation schemes for a class of continuous-time stochastic dynamical systems
ID - upm26836
SP - 43
UR - http://www.sciencedirect.com/science/article/pii/S1367578813000047
AV - public
ER -