Documents disponibles écrits par cet auteur

A novel instantaneous torque control scheme for induction generator systems / Yuwen, Hu in IEEE transactions on energy conversion, Vol. 25, N° 3 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 795 - 803 Titre : A novel instantaneous torque control scheme for induction generator systems Type de document : texte imprimé Auteurs : Yuwen, Hu, Auteur ; Wenxin Huang, Auteur ; Li Yong, Auteur Année de publication : 2011 Article en page(s) : pp. 795 - 803 Note générale : energy conversion Langues : Anglais (eng) Mots-clés : Asynchronous  generators;  machine  control;  torque  control;  voltage  control Résumé : In this paper, a novel instantaneous torque control is proposed to control the output voltage of a stand-alone induction generator. The output voltage regulation is achieved by the fast control of the space voltage vector based on the information of the output voltage and output current, which leads to a better system dynamic performance. The simulation and experimental results verify the effectiveness of the proposed scheme. The control scheme for the voltage buildup process is investigated as well. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552144&sortType%3Das [...] [article] A novel instantaneous torque control scheme for induction generator systems [texte imprimé] / Yuwen, Hu, Auteur ; Wenxin Huang, Auteur ; Li Yong, Auteur . - 2011 . - pp. 795 - 803. energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 25, N° 3 (Septembre 2010) . - pp. 795 - 803 Mots-clés : Asynchronous  generators;  machine  control;  torque  control;  voltage  control Résumé : In this paper, a novel instantaneous torque control is proposed to control the output voltage of a stand-alone induction generator. The output voltage regulation is achieved by the fast control of the space voltage vector based on the information of the output voltage and output current, which leads to a better system dynamic performance. The simulation and experimental results verify the effectiveness of the proposed scheme. The control scheme for the voltage buildup process is investigated as well. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5552144&sortType%3Das [...]

Sulfidation roasting of low grade lead–zinc oxide ore with elemental sulfur / Li Yong in Minerals engineering, Vol. 23 N° 7 (Juin 2010) 

Public ISBD [article]  in Minerals engineering > Vol. 23 N° 7 (Juin 2010) . - pp. 563–566 Titre : Sulfidation roasting of low grade lead–zinc oxide ore with elemental sulfur Type de document : texte imprimé Auteurs : Li Yong, Auteur ; Wang Ji-kun, Auteur ; Wei Chang, Auteur Année de publication : 2011 Article en page(s) : pp. 563–566 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Oxide  ores  Pyrometallurgy  Roasting  Ore  handling  Froth  flotation Résumé : Low-grade complex Pb–Zn oxide ore is an important source, and the reserve is very great in the world. It is very difficult to obtain Pb and Zn from the source by traditional technology. In this work, a new technology characterized by sulfidation of low grade Pb–Zn oxide ore with elemental sulfur was developed. The effects of temperature, time, particle size and sulfur amount on the sulfidation extent of Pb–Zn oxide ore was studied at a laboratory-scale. The experimental results show that the sulfidation extent of Pb and Zn oxide reaches 98% and 95% under the optimum conditions, respectively. A flotation concentrate was obtained with 38.9% Zn and 10.2% Pb from the materials which was treated by sulfidation, and the recovery of Zn and Pb is 88.2% and 79.5%, respectively. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687510000051 [article] Sulfidation roasting of low grade lead–zinc oxide ore with elemental sulfur [texte imprimé] / Li Yong, Auteur ; Wang Ji-kun, Auteur ; Wei Chang, Auteur . - 2011 . - pp. 563–566. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 23 N° 7 (Juin 2010) . - pp. 563–566 Mots-clés : Oxide  ores  Pyrometallurgy  Roasting  Ore  handling  Froth  flotation Résumé : Low-grade complex Pb–Zn oxide ore is an important source, and the reserve is very great in the world. It is very difficult to obtain Pb and Zn from the source by traditional technology. In this work, a new technology characterized by sulfidation of low grade Pb–Zn oxide ore with elemental sulfur was developed. The effects of temperature, time, particle size and sulfur amount on the sulfidation extent of Pb–Zn oxide ore was studied at a laboratory-scale. The experimental results show that the sulfidation extent of Pb and Zn oxide reaches 98% and 95% under the optimum conditions, respectively. A flotation concentrate was obtained with 38.9% Zn and 10.2% Pb from the materials which was treated by sulfidation, and the recovery of Zn and Pb is 88.2% and 79.5%, respectively. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687510000051