The goal of this research is the enhancement of avionic diagnostic and protection systems against load-fault-induced torsional resonances between on-board alternators and the driving turbines. Intermittent arc faults spreading over worn brushed slip rings supplying AC rotating loads (i.e. propeller anti-ice systems) may endanger the overall electrical service continuity by exciting mechanical resonances and ever-growing torque and speed ripples. Such phenomena are possible causes of breakage of the coupling joint ('mechanical fuse') between turbine and generator, as documented in a companion paper. Two online monitoring techniques for the early-detection of torsional resonances by sensorless speed and torque estimation are proposed to prevent this potential issue on aircrafts in flight.

Monitoring of load-fault-induced torsional resonances in high-speed alternators by speed and torque estimation / Fedele, A.; Bruzzese, C.; Santini, E.; Anastasio, V.. - (2019), pp. 3679-3684. (Intervento presentato al convegno 45th Annual conference of the IEEE industrial electronics society, IECON 2019 tenutosi a Lisbon; Portugal) [10.1109/IECON.2019.8927588].

Monitoring of load-fault-induced torsional resonances in high-speed alternators by speed and torque estimation

Fedele A.;Bruzzese C.
;
Santini E.;
2019

Abstract

The goal of this research is the enhancement of avionic diagnostic and protection systems against load-fault-induced torsional resonances between on-board alternators and the driving turbines. Intermittent arc faults spreading over worn brushed slip rings supplying AC rotating loads (i.e. propeller anti-ice systems) may endanger the overall electrical service continuity by exciting mechanical resonances and ever-growing torque and speed ripples. Such phenomena are possible causes of breakage of the coupling joint ('mechanical fuse') between turbine and generator, as documented in a companion paper. Two online monitoring techniques for the early-detection of torsional resonances by sensorless speed and torque estimation are proposed to prevent this potential issue on aircrafts in flight.
2019
45th Annual conference of the IEEE industrial electronics society, IECON 2019
avionic alternators; condition monitoring; fault detection; high speed alternators; joint breakage; mechanical fuse; torsional resonances
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Monitoring of load-fault-induced torsional resonances in high-speed alternators by speed and torque estimation / Fedele, A.; Bruzzese, C.; Santini, E.; Anastasio, V.. - (2019), pp. 3679-3684. (Intervento presentato al convegno 45th Annual conference of the IEEE industrial electronics society, IECON 2019 tenutosi a Lisbon; Portugal) [10.1109/IECON.2019.8927588].
File allegati a questo prodotto
File Dimensione Formato  
Fedele_ Monitoring_2019.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.33 MB
Formato Adobe PDF
2.33 MB Adobe PDF   Contatta l'autore

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/11573/1578579
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
social impact