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Open-transistor fault diagnostics in voltage-source inverters by analyzing the load currents / Sleszynski, Wojciech in IEEE transactions on industrial electronics, Vol. 56 N° 11 (Novembre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4681 - 4688 Titre : Open-transistor fault diagnostics in voltage-source inverters by analyzing the load currents Type de document : texte imprimé Auteurs : Sleszynski, Wojciech, Auteur ; Nieznanski, Janusz, Auteur ; Cichowski, Artur, Auteur Article en page(s) : pp. 4681 - 4688 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : AC  motor  drives  Fault  diagnosis  Pulsewidth  modulated  inverters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel method is presented for the detection and isolation of open-transistor faults in voltage-source inverters feeding AC motors. The method is an extension of the normalized DC-components method. The normalized average currents are combined with additional diagnostic variables which convey information about the percentage of time spent by the phase currents in the near-zero zone. The combined diagnostic signals permit much more robust diagnostics of single-transistor faults and make feasible the diagnostics of multiple-transistor faults. Suggested in this paper is also an alternative solution for the normalization of DC components, which is easier interpreted and simpler to implement. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067311 [article] Open-transistor fault diagnostics in voltage-source inverters by analyzing the load currents [texte imprimé] / Sleszynski, Wojciech, Auteur ; Nieznanski, Janusz, Auteur ; Cichowski, Artur, Auteur . - pp. 4681 - 4688. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 11 (Novembre 2009) . - pp. 4681 - 4688 Mots-clés : AC  motor  drives  Fault  diagnosis  Pulsewidth  modulated  inverters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel method is presented for the detection and isolation of open-transistor faults in voltage-source inverters feeding AC motors. The method is an extension of the normalized DC-components method. The normalized average currents are combined with additional diagnostic variables which convey information about the percentage of time spent by the phase currents in the near-zero zone. The combined diagnostic signals permit much more robust diagnostics of single-transistor faults and make feasible the diagnostics of multiple-transistor faults. Suggested in this paper is also an alternative solution for the normalization of DC components, which is easier interpreted and simpler to implement. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5067311