The paper proposes a fault diagnosis procedure based on a model-free approach and the use of pattern recognition techniques. In particular improvements on the isolation capability of a Fuzzy Faults Classifier (FCC) previously proposed by the author by the use of the Mahalanobis distance as metric for identifying the most probable fault are discussed. The proposed approach is applied to an industrial multishaft centrifugal compressor located in an Air Separation Unit (ASU). In particular faults due to the wear and tear of the thrust bearing and to fouling of the compressor stage are considered. The case study confirms the goodness of the overall procedure in the detections of both single as well as multiple faults and shows the improvements of the proposed approach in terms of the FDI system promptness.

Faults Diagnosis for a centrifugal machine using the Mahalanobis distance / Zanoli, Silvia Maria; Astolfi, Giacomo. - Vol. 8, Part 1:(2012), pp. 444-449. (Intervento presentato al convegno 8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes tenutosi a Mexico City, Mexico nel August 29-31, 2012) [10.3182/20120829-3-MX-2028.00223].

Faults Diagnosis for a centrifugal machine using the Mahalanobis distance

ZANOLI, Silvia Maria;ASTOLFI, GIACOMO
2012-01-01

Abstract

The paper proposes a fault diagnosis procedure based on a model-free approach and the use of pattern recognition techniques. In particular improvements on the isolation capability of a Fuzzy Faults Classifier (FCC) previously proposed by the author by the use of the Mahalanobis distance as metric for identifying the most probable fault are discussed. The proposed approach is applied to an industrial multishaft centrifugal compressor located in an Air Separation Unit (ASU). In particular faults due to the wear and tear of the thrust bearing and to fouling of the compressor stage are considered. The case study confirms the goodness of the overall procedure in the detections of both single as well as multiple faults and shows the improvements of the proposed approach in terms of the FDI system promptness.
2012
9783902823090
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/76671
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? ND
social impact