Documents disponibles écrits par cet auteur

Application of the finite-element method for the determination of the parameters representing the cross-magnetizing in saturated synchronous machines / Xiaodong Liang in IEEE transactions on energy conversion, Vol. 25 N° 1 (Mars 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 70 - 79 Titre : Application of the finite-element method for the determination of the parameters representing the cross-magnetizing in saturated synchronous machines Type de document : texte imprimé Auteurs : Xiaodong Liang, Auteur ; El-Serafi, A.M., Auteur ; S. O. Faried, Auteur Année de publication : 2010 Article en page(s) : pp. 70 - 79 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : electromagnetic  fields;  finite  element  analysis;  synchronous  machines Résumé : It has been recognized that the cross-magnetizing phenomenon of saturated synchronous machines plays an important role in their analysis using the two-axis frame models. In this paper, the finite-element method (FEM) is applied to determine from 2-D static electromagnetic field solutions the parameters representing this phenomenon. A specially designed synchronous machine that can be excited from both its direct and quadrature axes is used in this study in order that the parameters representing the cross-magnetizing effect could be measured experimentally and, thus, the accuracy of the numerical solution can be verified. The effects of some of the factors that may affect the accuracy of the FEM analysis have also been investigated. The results of these studies have shown that the calculated parameters representing the cross-magnetizing phenomenon using the FEM are consistent with the measured values. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5345872&sortType%3Das [...] [article] Application of the finite-element method for the determination of the parameters representing the cross-magnetizing in saturated synchronous machines [texte imprimé] / Xiaodong Liang, Auteur ; El-Serafi, A.M., Auteur ; S. O. Faried, Auteur . - 2010 . - pp. 70 - 79. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25 N° 1 (Mars 2010) . - pp. 70 - 79 Mots-clés : electromagnetic  fields;  finite  element  analysis;  synchronous  machines Résumé : It has been recognized that the cross-magnetizing phenomenon of saturated synchronous machines plays an important role in their analysis using the two-axis frame models. In this paper, the finite-element method (FEM) is applied to determine from 2-D static electromagnetic field solutions the parameters representing this phenomenon. A specially designed synchronous machine that can be excited from both its direct and quadrature axes is used in this study in order that the parameters representing the cross-magnetizing effect could be measured experimentally and, thus, the accuracy of the numerical solution can be verified. The effects of some of the factors that may affect the accuracy of the FEM analysis have also been investigated. The results of these studies have shown that the calculated parameters representing the cross-magnetizing phenomenon using the FEM are consistent with the measured values. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5345872&sortType%3Das [...]

Probabilistic evaluation of transient stability of a wind farm / S. O. Faried in IEEE transactions on energy conversion, Vol. 24 N° 3 (Septembre 2009) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 733 - 739 Titre : Probabilistic evaluation of transient stability of a wind farm Type de document : texte imprimé Auteurs : S. O. Faried, Auteur ; Billinton, R., Auteur ; Aboreshaid S, Auteur Année de publication : 2010 Article en page(s) : pp. 733 - 739 Note générale : Energy Conversion Langues : Anglais (eng) Mots-clés : EMTP--power  system--transient  stability--Time-domain  analysis--Wind  power  plants Résumé : This paper presents a probabilistic-based approach to evaluate transient stability of a wind farm. In this context, investigations have been conducted on a hypothetical system representing a typical wind farm taking into consideration the uncertainty of several factors associated with the practical operation of a power system. A risk index that reflects the likelihood that the wind farm encounters an instability problem is presented. The time domain simulations are obtained using the electromagnetic transient program (EMTP). Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5071243&sortType%3Das [...] [article] Probabilistic evaluation of transient stability of a wind farm [texte imprimé] / S. O. Faried, Auteur ; Billinton, R., Auteur ; Aboreshaid S, Auteur . - 2010 . - pp. 733 - 739. Energy Conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 24 N° 3 (Septembre 2009) . - pp. 733 - 739 Mots-clés : EMTP--power  system--transient  stability--Time-domain  analysis--Wind  power  plants Résumé : This paper presents a probabilistic-based approach to evaluate transient stability of a wind farm. In this context, investigations have been conducted on a hypothetical system representing a typical wind farm taking into consideration the uncertainty of several factors associated with the practical operation of a power system. A risk index that reflects the likelihood that the wind farm encounters an instability problem is presented. The time domain simulations are obtained using the electromagnetic transient program (EMTP). Note de contenu : Bibiogr. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5071243&sortType%3Das [...]