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A novel rotor ground-fault-detection technique for synchronous machines with static excitation / Gaona, C.A.P. in IEEE transactions on energy conversion, Vol. 25, N° 4 (Décembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 965 - 973 Titre : A novel rotor ground-fault-detection technique for synchronous machines with static excitation Type de document : texte imprimé Auteurs : Gaona, C.A.P., Auteur ; Blàzquez, F., Auteur ; Frias, P., Auteur Année de publication : 2011 Article en page(s) : pp. 965 - 973 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Earthing;  rotors;  synchronous  machines Résumé : This paper presents a novel ground-fault-detection technique for synchronous machines. This technique is suitable for synchronous machines with static excitation systems, whose excitation field winding is fed by rectifiers through an excitation transformer. The main contribution of this new technique is that it can detect and discriminate both ac- and dc-side ground faults in the excitation system, without the need for traditional power injection sources. This detection technique is based on the frequency analysis of the voltages or currents at a grounding impedance placed at the excitation transformer neutral terminal. This technique has been validated through computer simulations and experimental laboratory tests. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5477162&sortType%3Das [...] [article] A novel rotor ground-fault-detection technique for synchronous machines with static excitation [texte imprimé] / Gaona, C.A.P., Auteur ; Blàzquez, F., Auteur ; Frias, P., Auteur . - 2011 . - pp. 965 - 973. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 4 (Décembre 2010) . - pp. 965 - 973 Mots-clés : Earthing;  rotors;  synchronous  machines Résumé : This paper presents a novel ground-fault-detection technique for synchronous machines. This technique is suitable for synchronous machines with static excitation systems, whose excitation field winding is fed by rectifiers through an excitation transformer. The main contribution of this new technique is that it can detect and discriminate both ac- and dc-side ground faults in the excitation system, without the need for traditional power injection sources. This detection technique is based on the frequency analysis of the voltages or currents at a grounding impedance placed at the excitation transformer neutral terminal. This technique has been validated through computer simulations and experimental laboratory tests. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5477162&sortType%3Das [...]