Optimal topology for distributed fault detection of large-scale systems

Francesca Boem, Riccardo M.G. Ferrari, Thomas Parisini, Marios M. Polycarpou

Research output: Contribution to journalConference articleScientificpeer-review

15 Citations (Scopus)

Abstract

The paper deals with the problem of defining the optimal topology for a distributed fault detection architecture for non-linear large-scale systems. A stochastic modelbased framework for diagnosis is formulated. The system structural graph is decomposed into subsystems and each subsystem is monitored by one local diagnoser. It is shown that overlapping of subsystems allows to improve the detectability properties of the monitoring architecture. Based on this theoretical result, an optimal decomposition design method is proposed, able to define the minimum number of detection units needed to guarantee the detectability of certain faults while minimizing the communication costs subject to some computation cost constraints. An algorithmic procedure is presented to solve the proposed optimal decomposition problem. Preliminary simulation results show the potential of the proposed approach.

Original languageEnglish
Pages (from-to)60-65
JournalIFAC-PapersOnLine
Volume28
Issue number21
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes - paris, France
Duration: 2 Sep 20154 Sep 2015

Keywords

  • Distributed systems
  • Fault detection
  • Optimal decomposition
  • Topology

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