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Détail de l'auteur
Auteur Kamwa, I.
Documents disponibles écrits par cet auteur
Affiner la rechercheAdvanced modeling of a synchronous generator under line-switching and load-rejection tests for isolated grid applications / Wamkeue, R. in IEEE transactions on energy conversion, Vol. 25, N° 3 (Septembre 2010)
[article]
in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 680 - 689
Titre : Advanced modeling of a synchronous generator under line-switching and load-rejection tests for isolated grid applications Type de document : texte imprimé Auteurs : Wamkeue, R., Auteur ; Jolette, C., Auteur ; Kamwa, I., Auteur Année de publication : 2011 Article en page(s) : pp. 680 - 689 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : synchronous generators Résumé : This paper deals with an efficient method behind the analysis of a saturated synchronous generator (SG) under line-switching and load-rejection tests for islanded networks. This novel approach is based on a SG and ( P,V,Q) load-equivalent combined state-space model. Full and partial load-rejection tests and line-switching tests are explored. The k -factor cross-saturation theory of SG is applied to account for the saturation phenomenon in the proposed model. The paper also attempts to point out the duality between line-switching and load-rejection tests. As the best alternative to the load-rejection test, the line-switching test is simple and more suitable, providing easy steady-state conditions (zero armature currents and rotor angle). Consequently, there is no need for rotor angle positioning when performing the test. Comparisons between simulation results and actual data obtained from a four-pole 1.5-kVA, 208-V, 60-Hz laboratory machine show the effectiveness of the proposed SG stator decrement tests analysis framework. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552153&sortType%3Das [...] [article] Advanced modeling of a synchronous generator under line-switching and load-rejection tests for isolated grid applications [texte imprimé] / Wamkeue, R., Auteur ; Jolette, C., Auteur ; Kamwa, I., Auteur . - 2011 . - pp. 680 - 689.
energy conversion
Langues : Anglais (eng)
in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 680 - 689
Mots-clés : synchronous generators Résumé : This paper deals with an efficient method behind the analysis of a saturated synchronous generator (SG) under line-switching and load-rejection tests for islanded networks. This novel approach is based on a SG and ( P,V,Q) load-equivalent combined state-space model. Full and partial load-rejection tests and line-switching tests are explored. The k -factor cross-saturation theory of SG is applied to account for the saturation phenomenon in the proposed model. The paper also attempts to point out the duality between line-switching and load-rejection tests. As the best alternative to the load-rejection test, the line-switching test is simple and more suitable, providing easy steady-state conditions (zero armature currents and rotor angle). Consequently, there is no need for rotor angle positioning when performing the test. Comparisons between simulation results and actual data obtained from a four-pole 1.5-kVA, 208-V, 60-Hz laboratory machine show the effectiveness of the proposed SG stator decrement tests analysis framework. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552153&sortType%3Das [...] Hybrid-state-model-based time-domain identification of synchronous machine parameters from saturated load rejection test records / Wamkeue, R. in IEEE transactions on energy conversion, Vol. 23 N°1 (Mars 2008)
[article]
in IEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 68 - 77
Titre : Hybrid-state-model-based time-domain identification of synchronous machine parameters from saturated load rejection test records Type de document : texte imprimé Auteurs : Wamkeue, R., Auteur ; Baetscher, F., Auteur ; Kamwa, I., Auteur Année de publication : 2008 Article en page(s) : pp. 68 - 77 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : Equivalent circuits; parameter estimation; power factor; rotors; synchronous generators; synchronous machines; time-domain analysis Résumé : This paper presents a suitable method for time-domain identification of synchronous machine parameters from the hybrid state model recently introduced by the authors in a compact matrix form. The saturated version of this model is developed in terms of generator equivalent-circuit parameters. The load rejection test of a combined resistive/inductive load is performed for the parameter identification while the online symmetrical three-phase short-circuit test is carried out for the model cross-validation. For weak power factor initial loads connected to the generator, the rotor speed is quite constant during the full load rejection test. Thus, the mechanical transients do not have any influence on estimated electrical parameters since they are decoupled from the electrical model of the machine. The method is successfully applied for the parameter identification of 380 V, 3 kVmiddotA, four-pole, 50 Hz saturated synchronous generator. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4454001&sortType%3Das [...] [article] Hybrid-state-model-based time-domain identification of synchronous machine parameters from saturated load rejection test records [texte imprimé] / Wamkeue, R., Auteur ; Baetscher, F., Auteur ; Kamwa, I., Auteur . - 2008 . - pp. 68 - 77.
Energy conversion
Langues : Anglais (eng)
in IEEE transactions on energy conversion > Vol. 23 N°1 (Mars 2008) . - pp. 68 - 77
Mots-clés : Equivalent circuits; parameter estimation; power factor; rotors; synchronous generators; synchronous machines; time-domain analysis Résumé : This paper presents a suitable method for time-domain identification of synchronous machine parameters from the hybrid state model recently introduced by the authors in a compact matrix form. The saturated version of this model is developed in terms of generator equivalent-circuit parameters. The load rejection test of a combined resistive/inductive load is performed for the parameter identification while the online symmetrical three-phase short-circuit test is carried out for the model cross-validation. For weak power factor initial loads connected to the generator, the rotor speed is quite constant during the full load rejection test. Thus, the mechanical transients do not have any influence on estimated electrical parameters since they are decoupled from the electrical model of the machine. The method is successfully applied for the parameter identification of 380 V, 3 kVmiddotA, four-pole, 50 Hz saturated synchronous generator. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4454001&sortType%3Das [...] Modeling and Simulation of the Propagation of Harmonics in Electric Power Networks: Part I: Concept, Models, and Simulation Techniques / Hammad, A. in IEEE transactions on power delivery, Vol. 11 N°1 (Janvier 1996)
[article]
in IEEE transactions on power delivery > Vol. 11 N°1 (Janvier 1996) . - 452-465 p.
Titre : Modeling and Simulation of the Propagation of Harmonics in Electric Power Networks: Part I: Concept, Models, and Simulation Techniques Titre original : Simulation Modelée de la Propagation des Harmoniques dans des Réseaux d'Energie Electrique: Part I : Concept, modèles, et techniques de simulation Type de document : texte imprimé Auteurs : Hammad, A., Auteur ; Carpinelli, G. ; Semlyen, Adam ; Acha, E. ; Arrillaga, J. ; Le-Huy, Hoang ; Medina, A. ; Dickinson, E. J. ; Viarouge, P. ; Kamwa, I. ; Kundur, P. ; Morched, A., Auteur ; Testa, A. Article en page(s) : 452-465 p. Note générale : Génie Electrique Langues : Anglais (eng) Mots-clés : Power system harmonics Harmonics simulation Harmonics modeling Harmoniques de système d'alimentation Simulation d'harmoniques Harmoniques modelée Index. décimale : 621.3 Ingénierie électrique Résumé : This two-part report presents a review of the modeling and analysis of harmonic propagation in electric power systems, along with practical considerations and sample case studies. Part I of the report concentrates on the theoretical aspects of harmonics modeling and simulation. Concepts and characteristics of power system harmonics, modeling of harmonic sources and network components, and techniques for network-wide harmonic analysis are discussed.
Ce rapport en deux parties présente un examen de modeler et de l'analyse de la propagation harmonique dans des systèmes d'énergie électrique, avec des considérations et des études de cas pratiques témoin. La partie I du rapport se concentre sur les aspects théoriques de modeler et de simulation d'harmoniques. Des concepts et les caractéristiques des harmoniques de système d'alimentation, modeler des sources et des composants harmoniques de réseau, et les techniques pour l'analyse harmonique large de réseau sont discutés.
[article] Modeling and Simulation of the Propagation of Harmonics in Electric Power Networks: Part I: Concept, Models, and Simulation Techniques = Simulation Modelée de la Propagation des Harmoniques dans des Réseaux d'Energie Electrique: Part I : Concept, modèles, et techniques de simulation [texte imprimé] / Hammad, A., Auteur ; Carpinelli, G. ; Semlyen, Adam ; Acha, E. ; Arrillaga, J. ; Le-Huy, Hoang ; Medina, A. ; Dickinson, E. J. ; Viarouge, P. ; Kamwa, I. ; Kundur, P. ; Morched, A., Auteur ; Testa, A. . - 452-465 p.
Génie Electrique
Langues : Anglais (eng)
in IEEE transactions on power delivery > Vol. 11 N°1 (Janvier 1996) . - 452-465 p.
Mots-clés : Power system harmonics Harmonics simulation Harmonics modeling Harmoniques de système d'alimentation Simulation d'harmoniques Harmoniques modelée Index. décimale : 621.3 Ingénierie électrique Résumé : This two-part report presents a review of the modeling and analysis of harmonic propagation in electric power systems, along with practical considerations and sample case studies. Part I of the report concentrates on the theoretical aspects of harmonics modeling and simulation. Concepts and characteristics of power system harmonics, modeling of harmonic sources and network components, and techniques for network-wide harmonic analysis are discussed.
Ce rapport en deux parties présente un examen de modeler et de l'analyse de la propagation harmonique dans des systèmes d'énergie électrique, avec des considérations et des études de cas pratiques témoin. La partie I du rapport se concentre sur les aspects théoriques de modeler et de simulation d'harmoniques. Des concepts et les caractéristiques des harmoniques de système d'alimentation, modeler des sources et des composants harmoniques de réseau, et les techniques pour l'analyse harmonique large de réseau sont discutés.