Sensor fault diagnosis based on energy balance evaluation: Application to a metal processing

D. Theilliol, H. Noura, D. Sauter, F. Hamelin

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


This paper deals with the design of a residual generator for fault detection and isolation in the dynamic closed-loop systems based on the balance of energy which "enters" and "leaves" plants. The main contribution of this paper consists in developing a suitable fault detection and isolation technique to detect faults in single-input single-output closed-loop system based on major signals without the requirement of an accurate static or dynamic model. Indeed, in the absence of conventional input-output models, the proposed method involves the on-line energy balance evaluation to detect a sensor fault. The application to the monitoring of a galvanizing line in steel industry shows the effectiveness of the suggested approach when a sensor fault occurs

Original languageEnglish
Pages (from-to)603-610
Number of pages8
JournalISA Transactions
Issue number4
Publication statusPublished - Oct 2006
Externally publishedYes


  • Energy balance
  • Fault detection and isolation
  • Metal processing

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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