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A Fuzzy Similarity-Based Method for Failure Detection and Recovery Time Estimation

Volume 6, Number 5, September 2010 - Paper 1 - pp. 407-424


1 Energy Department, Polytechnic of Milan
   Via Ponzio 34/3, 20133 Milano, Italy
2 Ecole Centrale Paris and Supelec
   Grande Voie des Vignes, 92295 Chatenay-Malabry Cedex, France

(Received on September 03, 2009, revised on March 20, 2010)


In this work, an extension of a data-driven approach for estimation of the available Recovery Time (RT) is presented. The improvement is in avoiding the need of resorting to a fault detection module for the identification of the anomalous system behavior: the algorithm proposed jointly detects the onset of the accidental transient and performs the estimation of the available RT. This is achieved by fuzzy similarity analysis of the currently developing scenario and reference multidimensional trajectory patterns of failure scenarios; the RT remaining before the developing trajectory pattern hits a failure threshold is predicted by combining the times of failure of the reference patterns, weighed by their similarity with the developing pattern.
For illustration purposes, failure scenarios of the Lead Bismuth Eutectic eXperimental Accelerator Driven System (LBE-XADS) are considered.


References: 32

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